T-STAR Operation in STM-1 Option - Table of Contents · PDF fileT-STAR 2000 in STM1 Option - 4...

T-STAR 2000 in STM1 Option - 2 -

T-STAR Operation in STM-1 Option - Table of Contents

1.1 STM-1 Hierarchy ................................................................................................................................................................................4

1.2 Results Screens....................................................................................................................................................................................4

2.1 Overview .............................................................................................................................................................................................5

2.2 STM-1 Bit Error testing .......................................................................................................................................................................5

3.1 Cable Connections ...............................................................................................................................................................................6

3.2 Quick Guide ........................................................................................................................................................................................6

4.1 STM-1 Setup: MODE (menu #M1.0).............................................................................................................................................7

5.1 STM-1 MONITOR: LINE (menu #4.0) ........................................................................................................................................ 12

5.2 STM-1 MONITOR: ERRORS (menu #2.0)..................................................................................................................................13

5.2.1 {F1} M2100 from menu #2.0 (menu #2.1.0)............................................................................................................................ 14

5.2.2 {F2} up AUTO from menu #2.0 (menu #2.5) ........................................................................................................................... 15

5.2.3 {F2} G826 from menu #2.0................................ ................................ ................................ ..........................................................16¸

5.2.3 A {F5} BLCK (menu #2.2.2)................................ ................................ ................................ ............................................16¸

5.2.3 B {F5} TIME (menu #2.2.1)............................................................................................................................................. 17

5.2.4 {F3} up APS from menu #2.0 (menu #2.4.0)........................................................................................................................... 18

5.2.5 {F3} down OvH from menu #2.0 (menu #2.3).......................................................................................................................... 19

5.2.5 A {F3} GRAPH from menu #2.3 (menu #2.3.2) .................................................................................................................. 22

5.2.5 B {F5} up CAPT from menu #2.3 (menu #2.3.1).................................................................................................................. 23


5.2.6 {F4} NEXT from menu #2.0....................................................................................................................................................... 24

6.1 STM-1 TEST: LINE (menu #3.0)................................................................................................................................................ 28

6.2 STM-1 TEST: BER (menu #1.0).................................................................................................................................................. 29

6.2.1 {F1} up OvH from menu #1.0 (menu #1.2) ............................................................................................................................. 31

6.2.2 {F1} down PTRN from menu #1.0 (menu #1.1) ....................................................................................................................... 32

6.2.2 A {F3} USER from menu #1.1 (menu #1.1.1) ..................................................................................................................... 33

6.2.2 A-1 {F3} SAVE/ LOAD from menu #1.1.1 (menu #1.1.2)...................................................................................................... 34

6.2.3 {F2} INJ from menu #1.0 (menu #1.3)...................................................................................................................................35

6.2.3 A {F1} OvH from menu #1.3 (menu #1.3.1)........................................................................................................................ 36

6.2.3 B {F2} CMI from menu #1.3 (menu #1.3.3)........................................................................................................................ 37

6.2.3 C {F3} ERR from menu #1.3 (menu #1.3.3)........................................................................................................................ 38

6.2.3 C-1 {F1} - {F4} from menu #1.3.3 (menu #1.3.3.1) .............................................................................................................. 41

6.2.3 D {F4} ALARM from menu #1.3 (menu #1.3.4) .................................................................................................................. 42

6.2.4 {F3} up G821 from menu #1.0.................................................................................................................................................... 44

6.2.4 A {F1} START from menu #1.5.1 (menu #1.5.2).................................................................................................................. 44

6.2.4 A-1 {F1} STOP from menu #1.5.2 (menu #1.5.1)................................................................................................................. 44

6.2.5 {F3} down G826 from menu #1.0................................................................................................................................................ 45

6.2.5 A {F5} up BLCK from menu #1.6.1 (menu #1.6.2)............................................................................................................... 45

6.2.5 A-1 {F5} up TIME from menu #1.6.2 (menu #1.6.1) ............................................................................................................ 45 7. SDH Applications 46

8. STM-1 Technical Descriptions ........................................................................................................................................................... 47

9. Relevant ITU Documents ...................................................................................................................................................................57


Section 1 ¡ STM-1 Testing 1.1 STM-1 Hierarchy

The STM-1 hierarchy is shown graphically to the right.

The option for testing in STM-1 mode using the T-STAR 2000 is described herein. 1.2 Results Screens

There are 14 possible results screens available in STM-1, as shown in sections 5.2.6 for Monitor: ERRORS and 6.2 for Test: BER.

C-111.544Mbps

C-122.048Mbps

C-26.312Mbps

C-334.36844.736 Mbps

C-4139.264 Mbps

VC-3

TU-3

TUG-3

VC-4

AU-4

VC-11 VC-12 VC-2

TU-11 TU-12 TU-2

TUG-2

VC-3

AU-3

AUG

STM-1

SYCHRONOUS DIGITAL HIERARCHY

AdministrativeUnit Group

AdministrativeUnits

TributaryUnitGroups

TributaryUnits

VirtualContainers

Containers

Make-up of theSTM-1 Signal

x3 x1

x1

x7x7

x4

x3

x3

x1x1


Section 2 ¡ T-STAR 2000

2.1 Overview The STM-1 option, available with the T-STAR 2000 model T3, provides STM-1 physical layer testing capabilities which

allow you to: �� Verify the continuity of the SDH network by performing STM-1 optical

or electrical BERT testing while measuring signal frequency. �� Determine if the network has been correctly provisioned by measuring pointer justification

and confirming STM-1 signal reception. �� Send and receive pointer adjustments and alarms through SDH network

to verify the network's reporting of problems. �� Drop embedded DS3, T1 and E1 payloads for monitoring and testing.

There are 10 MODES and 11 Result Screens available for monitoring and testing with the T2000 SMT -1, as shown in Table 1. 2.2 STM-1 Bit Error testing

The MONITOR : LINE menu tests the parameters of the STM-1 physical line, such as Frequency and Clock Slips. The MONITOR : ERRORS menu provides performance data from various error counters. The TEST : LINE and TEST : BER menus are accessed from the STM-1 optical interface, type FC. This is an out-of-service test that will interrupt transmission of the entire STM-1 link. LINE allows for alarm insertion while BER provides Bit Error Testing.


Section 3 ¡ Operation

3.1 Cable Connections �� For optical SDH STM-1 interface

connect the optical receiver on the T-STAR 2000 model T3 as marked "1310/1550 IN" to the Transm it jack of the SDH panel. Connect the optical transmitter on the T -STAR 2000 model T3 marked "1310 OUT" or "1550 OUT" to the Receive jack of the SDH panel.

�� For electrical SDH STM-1e interface use electrical Out and In jacks correspondingly. I 3.2 Quick Guide

Press BER under TEST on the T-STAR front panel. From menu #1.0, press {F1} PTRN (down) to access menu #1.1. From menu #1.1, scroll {F2} PRBS and stop on the desired PRBS patterns, e.g. 2E20 ¡1. Press the blue RESTART key from the T-STAR front panel. This will clear all counters and start the Bit Error Test. Observe the "PATTERN SYNC " LED. When it is ON, the bit synchronization has been activated. In order to verify that the test is correct, hit {F5} EXIT from menu #1.1 to return to menu#1.0. From here, you can inject several single errors by pressing {F2} INJ. You should now be in menu #1.3. From here, press {F3} ERR to access error injection menu #1.3.3. Press {F5} NEXT from this menu to change error level injection. Press {F1} LGC to injec t errors. If these errors appear in the LGC Errors, then the counter test is true. If you wish to change the mapping, hit {F5} EXIT in order to return to the main menu #1.0. From here, you can scroll {F5} MAPP until you reach the desired configuration.


Section 4 ¡ Setup 4.1 STM-1 Setup: MODE (menu #M1.0)

Choose the STM-1 option from the main menu. To

set the STM1 testing parameters, press MODE key in the SETUP section on the T-STAR front panel to access menu #M1.0. Five possible screens will appear. The STM1 MAIN SETTINGS version of the M1.0 screen is shown right:

Functions Keys for Setup/ MODE, Where:

{F1} OTHER (up) Toggle to select: COPIES, ALL "1", ALL "0", or ALL "1:1", {F1} VC3# (down) Toggle to select VC3# 01-03. {F2} IF Toggle to select InterFace: ELECTRICAL, OPT-1310nm, or OPT-1550nm. {F3} CLK (up) Toggle to select Clock: INTERNAL, EXTERNAL or RECOVERED. {F3} DMUX (down) Turns Demux function ON or OFF. {F4} NEXT Toggle to select setup screens for: T1 MAP/ MUX, T3 MAP, E1 MAP/ MUX, and STM1 MAIN SETTINGS. {F5} EXIT Escapes to the previous screen.


4.1 STM-1 Setup: MODE, continued. (menu #M1.0)

Again, pressing the blue MODE key in the SETUP section of the T-STAR front panel invokes menu #M1.0, with five possible screen choices. The STM1 MAIN SETTINGS version of the M1.0 screen is shown right:

Functions Keys for Setup/ MODE, Where: {F1} OTHER (up) Toggle to select: COPIES, ALL "1", ALL "0", or ALL "1:1", {F1} VC3# (down) Toggle to select VC3# 01-03. {F2} PS (up) Toggle to set Parameters Style to: BITS or BLOCK {F2} APS (down) Toggle to set APS Decoding to: G.783 or G.841. {F3} J1L (up) Set J1 Length to 1, 16 or 64 Bytes. {F3} J2L (down) Set J2 Length to 1, 16 or 64 Bytes. {F4} NEXT Toggle to select setup screens for: T1 MAP/ MUX, T3 MAP, E1 MAP/ MUX, and STM1 MAIN SETTINGS. {F5} EXIT Escapes to the previous screen.



Again, pressing the blue MODE key in the SETUP section of the T-STAR front panel invokes menu #M1.0, with five possible screen choices. The SETTINGS FOR T3 MAP version of the M1.0 screen is shown right:

Functions Keys for Setup/ MODE, Where: {F1} OTHER (up) Toggle to select: COPIES, ALL "1", ALL "0", or ALL "1:1", {F1} TUG3# (down) Toggle to select TUG3# 01-03. {F2} FMT Toggle to set Frame Format to: C-BIT or M13. {F3} SRC Toggle to set Signal Source to: INTERNAL or EXTERNAL. {F4} NEXT Toggle to select setup screens for: T1 MAP/ MUX, T3 MAP, E1 MAP/ MUX, and STM1 MAIN SETTINGS. {F5} EXIT Escapes to the previous screen.



Again, pressing the blue MODE key in the SETUP section of the T-STAR front panel invokes menu #M1.0, with five possible screen choices. The SETTINGS FOR T1 MAP/ MUX version of the screen is shown right. * * {F1} VC1X Invokes Menu #M1.2 with the numeric key editing for VC12 {F2} VC3 Scrolls thru VC3 #1,2 and 3 (VC12# follows the VC3 selection) {F3} TUG2 Scrolls thru TUG#1,2 thru 7 (VC12# follows the TUG2 selection) {F3} TU1X Scrolls thru TU12#1,2 and 3 (VC12# follows the TUG2 selection) {F4} EXIT Escapes to the previous screen

Functions Keys for Setup/ MODE, Where: {F1} OTHER (up) Toggle to select: COPIES, ALL "1", ALL "0", or ALL "1:1", {F1} VC11# (down) Invokes menu #M1.1, as partially shown below *. {F2} SRC (up) Toggle to set Signal Source to: INTERNAL or EXTERNAL. {F2} FMT (down) Toggle to set Frame Format to: D4, SF-N, SLC96, UNFRM (unframed), or ESF-S. {F4} OTH (up) Toggle to select Other Channels to: COPIES, LOOP, or AIS. {F4} CHN (down) Toggle to select Channel # 01-28. {F4} NEXT Toggle to select setup screens for: T1 MAP/ MUX, T3 MAP, E1 MAP/ MUX, and STM1 MAIN SETTINGS. {F5} EXIT Escapes to the previous screen.



Again, pressing the blue MODE key in the SETUP section of the T-STAR front panel invokes menu #M1.0, with five possible screen choices. The SETTINGS FOR E1 MAP/ MUX version of the screen is shown right. * {F1} VC1X Invokes Menu #M1.2 with the numeric key editing for VC12 {F2} VC3 Scrolls thru VC3 #1,2 and 3 (VC12# follows the VC3 selection) {F3} TUG2 Scrolls thru TUG#1,2 thru 7 (VC12# follows the TUG2 selection) {F3} TU1X Scrolls thru TU12#1,2 and 3 (VC12# follows the TUG2 selection) {F4} EXIT Escapes to the previous screen

Functions Keys for Setup/ MODE, Where: {F1} OTHER (up) Toggle to select: COPIES, ALL "1", ALL "0", or ALL "1:1", {F1} VC12# (down) Invokes menu #M1.1, as partially shown below *. {F2} SRC (up) Toggle to set Signal Source to: INTERNAL or EXTERNAL. {F2} FMT (down) Toggle to set Frame Format to: CCS, CCS&C, CAS, CAS&C

and UNFRM (unframed). {F4} OTH (up) Toggle to select Other Channels to: COPIES, LOOP, or AIS. {F4} CHN (down) Toggle to select Channel #01-21. {F4} NEXT Toggle to select setup screens for: T1 MAP/ MUX, T3 MAP, E1 MAP/ MUX, and STM1 MAIN SETTINGS. {F5} EXIT Escapes to the previous screen.


Section 5 ¡ MONITOR: In-Service 5.1 STM-1 MONITOR: LINE (menu #4.0)

The purpose of this menu is to monitor STM-1 Line

parameters such as Frequency and Clock Slips. Also, the ALARM/ STATUS indicators will be activated according to the chosen MODE. To access this menu #4.0, press the blue MONITOR: LINE key on the front of the T-STAR 2000 unit.

Functions Keys for STM1 Line Monitoring, Where: {F5} MAPP Toggle to select mapping modes: STM1/VC4-SPE or STM1/VC3-SPE.


5.2 STM-1 MONITOR: ERRORS (menu #2.0) Connect the monitored STM-1 signal to the RX

input of the T-STAR 2000, STM-1 option and press the blue MONITOR: ERRORS key. The MONITOR ERRORS main menu #2.0 is shown here.

Functions Keys for STM1 Error Monitoring, Where: {F1} M2100 Invokes menu #2.1.0 (see section 5.2.1). {F2} AUTO (up) Invokes menu #2.5 (see section 5.2.2). {F2} G826 (down) Invokes menu #2.2.1 or #2.2.2 (see section 5.2.3),

in BLOCK mode **. {F3} APS (up) Invokes menu #2.4.0 (see section 5.2.4). {F3} OvH (down) Invokes Overhead menu #2.3 (see section 5.2.5). {F4} NEXT Scrolls through eight possible result screens for

each mapping mode (see section 5.2.6), including: RSOH, MSOH, STM1 Alarms/ History, VC4/VC3 POH, VC12/VC11 POH, Mapped T3, Mapped T1, and Mapped E1.

{F5} MAPP Selects DS0 VF test mode in T3/T1 or T3/E1 demux: STM1/VC3/VC11/T1, STM1/VC4/VC11/T1, STM1/ VC4 - Bulk, STM1/VC4-SPE, STM1/VC3 - Bulk, STM1/VC3 - SPE STM1/VC3/T3, STM1/VC4-TUG3/T3, STM1/VC3/T3/ E1, STM1/VC4/TUG3/T3/E1, STM1/VC3/T3/ T1, STM1/VC4/TUG3/T3/T1, STM1/VC3/VC12/E1, and STM1/VC4/VC12/E1.

** To access Block mode: Select the blue key SETUP/ MODE, and scroll {F4} to reach VC3#. Press {F2} PS (Parameter Style) and set to BLOCK (see section 4.1).


5.2 STM-1 MONITOR: ERRORS, continued. (menu #2.0) 5.2.1 {F1} M2100 from menu #2.0 (menu #2.1.0)

The ITU Recommendation M2100 specifically applies to commissioning and maintenance. The commissioning process consists of a 15-minute line up period, followed by a 24-hour in-service measurement. During the line up period, errors may occur within certain limits. However, the monitoring must then continue for seven additional days. The M.2110 and M.2120 provide measurement procedures, and the subsequent limit values are derived from the performance parameters specified i n G.821 and G.826.

Functions Keys for M2100, Where:

{F1} START Toggles to STOP {F2} LGTH Sets Test Length (via menu #2.E below). {F3} LES Sets Limit ES (via menu #2.E below). {F4} LSES Sets Limit SES (via menu #2.E below). {F5} EXIT Escapes to the previous screen.


5.2 STM-1 MONITOR: ERRORS, continued. (menu #2.0) 5.2.2 {F2} up AUTO from menu #2.0 (menu #2.5)

Pressing {F2} up AUTO from menu #2.0 activates STM1 Auto Trouble menu #2.5, as shown right.

Functions Keys for Auto, Where: {F1} NEXT Displays results for each container. {F4} START Toggles to STOP {F5} EXIT Escapes to the previous screen.


5.2 STM-1 MONITOR: ERRORS, continued. (menu #2.0)

5.2.3 {F2} G826 from menu #2.0, continued. 5.2.3 A {F5} BLCK (menu #2.2.2)

Identical to G826 in TEST BER, the ITU G.826 performance analysis in Performance Monitor allows for TIME and BLOCK

error logging. This test relies on evaluation of Block Errors and allows In-Service measurement.

Functions Keys for Block, Where: {F1} B1 (up) Displays BIP-8 parity word

in Regenerator Section (RSOH) {F2} B2 (down) Displays BIP-H x 24 parity word

in Multiplex Section (MSOH) {F2} B3 (up) Displays High Path BIP 8

(Bit Interleaved Parity). {F2} LBIP (down) Displays Low Path BIP 2

(Bit Interleaved Parity). {F3} T3 Displays T3 errors if corresponding

mapping is selected {F4} E1/T1 Displays E1 or T1 errors when

corresponding mapping is selected {F5} TIME (up) Toggles to TIME menu #2.2.1

(see section 5.2.3 B). {F5} EXIT (down) Escapes to the previous menu.


5.2 STM-1 MONITOR: ERRORS, continued. (menu #2.0) 5.2.3 {F2} G.826 from menu #2.0, continued.

5.2.3 B {F5} TIME (menu #2.2.1) Identical to G.826 in TEST BER, the ITU G.826 performance analysis in Performance Monitor allows for TIME and

BLOCK error logging. This test relies on evaluation of Timing Errors and allows In -Service measurement.

Functions Keys for Time, Where: {F1} B1 (up) Displays BIP-8 parity word

in Regenerator Section (RSOH) {F2} B2 (down) Displays BIP-H x 24 parity word

in Multiplex Section (MSOH) {F2} B3 (up) Displays High Path BIP 8

(Bit Interleaved Parity). {F2} LBIP (down) Displays Low Path BIP 2

(Bit Interleaved Parity). {F3} T3 Displays T3 errors if corresponding

mapping is selected {F4} E1/T1 Displays E1 or T1 errors when

corresponding mapping is selected {F5} BLCK (up) Toggles to BLOCK menu #2.2.1

(see section 5.2.3 B). {F5} EXIT (down) Escapes to the previous menu.


5.2 STM-1 MONITOR: ERRORS, continued. (menu #2.0) 5.2.4 {F3} up APS from menu #2.0 (menu #2.4.0)

Pressing {F3} up APS from menu #2.0 activates APS Time Test menu #2.4.0, as shown right.

Functions Keys for APS, Where: {F1} EVNT Set measure Event to MS-AIS, AU-AIS

or TU-AIS, depending on mapping mode. {F2} TSHD Allows user to set Threshold Time

via menu #2.4.1 as shown below *. {F3} GATE Allows user to set Gate Time

via menu #2.4.1 as shown below *. {F4} START Toggles to STOP {F5} EXIT Escapes to the previous screen.


5.2 STM-1 MONITOR: ERRORS, continued. (menu #2.0) 5.2.5 {F3} down OvH from menu #2.0 (menu #2.3)

{F1} UP/DN Moves cursor up or down. {F2} << Moves cursor left. {F3} >> Moves cursor right. {F4} NEXT Scrolls through:

�� AU PTR (Auxiliary Unit Pointer), �� HP- POH (High Path Overhead), �� Trace Identity (J1), �� VC12/VC11 LP-POH (Low Path OverHead), �� RSOH (Regenerator Section Overhead), �� MSOH (Multiplex Section Overhead), �� MSOH APS (Line Overhead

Automatic Protection Switching), (see section 6.2.3 A).

{F5} CAPT (up) Invokes menu #2.3.1, (see section 5.2.5 B). {F5} EXIT (down) Escapes to previous menu.

Pressing {F3} down OvH from menu #2.0 activates many OverHead menus #2.3 ( AU PTR, MSOH APS, HP-POH, Trace Identity J1, RSOH, MSOH)

MSOH and RSOH screens:


HP-POH Screen: Trace Identity (J1) screen:

MSOH APS screen:



AU PTR:

Functions Keys for Overhead, Where: {F1} UP/DN Moves cursor up or down. {F2} << >> Moves cursor left or right. {F3} GRAPH Activates menu #2.3.2 (see section 5.2.5 A). {F4} NEXT Scrolls through:

�� AU PTR (Auxiliary Unit Pointer), �� HP- POH (High Path Overhead), �� Trace Identity (J1), �� VC12/VC11 LP-POH (Low Path OverHead), �� RSOH (Regenerator Section Overhead), �� MSOH (Multiplex Section Overhead), �� MSOH APS (Line Overhead

Automatic Protection Switching), (see section 6.2.3 A).

{F5} CAPT (up) Invokes menu #2.3.1, (see section 5.2.5 B). {F5} EXIT (down) Escapes to previous menu.

Pressing {F4} NEXT will scroll to AU PTR scree n:



5.2.5 A {F3} GRAPH from menu #2.3 (menu #2.3.2)

Pressing {F3} GRAPH from OverHead menu #2.3 activates Graph menu #2.3.2, as shown right.

Functions Keys for Graph, Where: {F1} PAGE Scrolls through results pages.

when results are available. {F2} << (up) Moves cursor left. {F2} x10-0 (down) Defines number of results

pages to scroll when available. {F3} >> (up) Moves cursor right. {F3} INTV (down) Choose Intervals of

01, 02, 05, 10, or 20s. {F4} START (up) Toggles to STOP. {F4} -> 01s (down) Choose Intervals of

01, 02, 05, 10, or 20s. {F5} EXIT Escapes to previous menu.



5.2.5 B {F5} up CAPT from menu #2.3 (menu #2.3.1)

Pressing {F5} down CAPT from OverHead menu #2.3 activates OH Byte Capture menu #2.3.1, as shown right.

Functions Keys for Byte Capture, Where: {F1} PAGE Scrolls through results pages.

when results are available. {F2} x10-0 Defines number of results

pages to scroll when available. {F3} TRIG Toggle to receive ALL FRMs or Event FRMs. {F4} START Toggles to STOP. {F5} EXIT Escapes to previous menu.


5.2 STM-1 MONITOR:ERRORS, continued. (menu #2.0) 5.2.6 {F4} NEXT from menu #2.0 Pressing {F4} NEXT from MONITOR: ERRORS menu #2.0 allows you to scroll through various result screens. This table

illustrates which result screens are available with each mapping as accessed via the {F5} MAPP key from menu #2.0. Mode STM-1 MONITOR ERRORS Results Screens\Mappings

STM1/VC4- BULK

STM1/VC4- SPE

STM1/VC3- BULK

STM1/VC3- SPE

STM1/VC3/

T3

STM1/VC4/ TUG3

/T3

STM1/VC3/

T3/ E1

STM1/VC4/ TUG3/T3/ E1

STM1/VC3/

T3/ T1

STM1/VC4/ TUG3/T3/ T1

STM1/VC3/ VC12/

E1

STM1/VC4/ VC12/

E1

STM1/VC3/VC11/

T1

STM1/VC4/VC11/

T1

Overhead AU PTR Y Y Y Y Y Y Y Y Y Y Y Y Y Y Overhead MSOH APS Y Y Y Y Y Y Y Y Y Y Y Y Y Y Overhead Trace Identity J1 Y Y Y Y Y Y Y Y Y Y Y Y Overhead HP-POH Receive Y Y Y Y Y Y Y Y Y Y Y Y Overh. VC12/VC11 LP-POH Y Y Overh. Trace Identity J2 Y Y Y Y Overhead RSOH Receive Y Y Y Y Y Y Y Y Y Y Y Y Y Y Overhead MSOH Receive Y Y Y Y Y Y Y Y Y Y Y Y Y Y RSOH BIP B1/Frame W Err Y Y Y Y Y Y Y Y Y Y Y Y Y Y MSOH BIP B2/Line UAVS Y Y Y Y Y Y Y Y Y Y Y Y Y Y HP POH BIP B3 Y Y Y Y Y Y Y Y Y Y Y Y VC12/VC11 LP POH Y Y Y Y TUG3/VC3 POH BIP B3 Y Y Y STM1 Alarms/History Y Y Y Y Y Y Y Y Y Y Y Y Y Y T3/E3/T1/E1 Alarms/History Y Y Y Y Y Y Y Y Y Y APS TIME Measurement Y Y Y Y Y Y Y Y Y Y Y Y Y Y AUTO TROUBLE SCAN Y Y Y Y Y Y Y Y Y Y Y Y Y Y M.2100 Y Y Y Y Y Y Y Y Y Y Y Y Y Y G.821 G.826 Y Y Y Y Y Y Y Y Y Y Y Y Y Y Mapped T3 Errors Y Y Y Y Y Y Mapped T1 Errors Y Y Y Y Mapped E1 Errors Y Y Y Y


5.2 STM-1 MONITOR:ERRORS, continued. (menu #2.0) 5.2.6 {F4} NEXT from menu #2.0, continued.

Pressing {F4} NEXT from MONITOR: ERRORS menu #2.0 allows yo u to scroll through various result screens for each

mapping as accessed via the {F5} MAPP key. Some examples of these result screens are shown below.


5.2 STM-1 MONITOR:ERRORS, continued. (menu #2.0) 5.2.6 {F4} NEXT from menu #2.0, continued.

Pressing {F4} NEXT from MONITOR: ERRORS menu #2.0 allows you to scroll through various result screens for each

mapping as accessed via the {F5} MAPP key. Some examples of these result screens are shown below.


5.2 STM-1 MONITOR:ERRORS, continued. (menu #2.0)

5.2.6 {F4} NEXT from menu #2.0, continued.

Pressing {F4} NEXT from MONITOR: ERRORS menu #2.0 allows you to scroll through various result screens for each mapping as accessed via the {F5} MAPP key. Additional examples of these result screens are shown below.


Section 6 ¡ TEST: Out-Of-Service 6.1 STM-1 TEST: LINE (menu #3.0)

This test requires termination of the STM-1 line

on the T-STAR 2000, STM-1 Rx Receiver and Transmitter. The menu allows simulation of alarms by inserting them into the terminated STM-1 line. To access this menu, press the blue TEST: LINE key on the front of the T-STAR unit.

Functions Keys for STM1 Line Test, Where: {F1} PTRN Selects a desired test pattern (see section 6.2.2). {F5} MAPP Scrolls through available operation modes, including

STM-1/ VC4 - SPE or STM-1/ VC3 - SPE.


6.2 STM-1 TEST: BER (menu #1.0)

Press the blue BER key under the TEST column from T-STAR front panel. One of several possible result screens will appear. The last used screen will be displayed by default. All of the screens are numbered menu #1.0. An example of the RSOH result screen is shown here.

Functions Keys for Test / BER, Where: {F1} OvH (up) Activates OverHead menu #1.2 (see section 6.2.1). {F1} PTRN (down) Activates Pattern menu #1.1 (see section 6.2.2). {F2} INJ Activates Error injection menu #1.3 (see sec. 6.2.3). {F3} G821 (up) Activates menu #1.5.1 and 1.5.2 (see section 6.2.4) {F3} G826 (down) Activates menu #1.6.1 and 1.6.2 (see section 6.2.5). {F4} NEXT Scrolls through various results menus based on mappings via {F5} (see section 5.2.6), including:

RSOH, MSOH, STM1 Alarms/ History, VC4/VC3 POH, Mapped T3, Mapped T1, Mapped E1, and VC12/ VC11 POH.

{F5} MAPP Scrolls through possible Mappings of: STM1/VC3/T3 STM1/VC4/TUG3/T3 STM1/VC4/TUG3/T3/T1 STM1/VC4/TUG3/T3/E1 STM1/VC3/VC12/E1 STM1/VC4/VC12/E1 STM1/VC3/VC11/T1 STM1/VC4/VC11/T1 STM1/VC4 - Bulk STM1/VC3 - Bulk STM1/VC3 -SPE STM1/VC4 - SPE STM1/VC3/T3/E1 STM1/VC3/T3/T2.


Pressing {F4} NEXT from TEST:BER menu #1.0 allows you to scroll through various result screens. This table illustrates which result screens are available with each mapping as accessed via the {F5} MAPP key from menu #1.0.

Mode STM-1 TEST BER Results Screens\Mappings

STM1/VC4- BULK

STM1/VC4- SPE

STM1/VC3- BULK

STM1/VC3- SPE

STM1/VC3/

T3

STM1/VC4/ TUG3

/T3

STM1/VC3/

T3/ E1


STM1/VC3/

T3/ T1


STM1/VC3/ VC12/

E1

STM1/VC4/ VC12/

E1

STM1/VC3/VC11/

T1

STM1/VC4/VC11/

T1

Overhead AU PTR Y Y Y Y Y Y Y Y Y Y Y Y Y Y Overhead MSOH APS Y Y Y Y Y Y Y Y Y Y Y Y Y Y Overhead Trace Identity J1 Y Y Y Y Y Y Y Y Y Y Y Y Overhead HP-POH Receive Y Y Y Y Y Y Y Y Y Y Y Y Overh. VC12/VC11 LP-POH Y Y Y Y Overh. Trace Identity J2 Y Y Overhead RSOH Receive Y Y Y Y Y Y Y Y Y Y Y Y Y Y Overhead MSOH Receive Y Y Y Y Y Y Y Y Y Y Y Y Y Y RSOH BIP B1/Frame W Err Y Y Y Y Y Y Y Y Y Y Y Y Y Y MSOH BIP B2/Line UAVS Y Y Y Y Y Y Y Y Y Y Y Y Y Y HP POH BIP B3 Y Y Y Y Y Y Y Y Y Y Y Y VC12/VC11 LP POH Y Y Y Y TUG3/VC3 POH BIP B3 Y Y Y STM1 Alarms/History Y Y Y Y Y Y Y Y Y Y Y Y Y Y T3/E3/T1/E1 Alarms/History Y Y Y Y Y Y Y Y Y Y Logic Errors SDH SDH SDH SDH APS TIME Measurement AUTO TROUBLE SCAN M.2100 G.821 Y Y Y Y G.826 Y Y Y Y Y Y Y Y Y Y Y Y Y Y Mapped T3 Errors Y Y Y Y Y Y Mapped T1 Errors Y Y Y Y Mapped E1 Errors Y Y Y Y


6.2 STM-1 TEST: BER, continued. (menu #1.0) 6.2.1 {F1} up OvH from menu #1.0 (menu #1.2)

Pressing {F1} up OvH from menu #1.0 invokes

many OverHead menus #1.2, one of which is shown right. (*See section 5.2.5 for additional examples).

Functions Keys for Overhead, Where: {F1} UP/DN Moves cursor up or down. {F2} << Moves cursor left. {F3} >> Moves cursor right. {F4} NEXT Displays screens for:

�� AU PTR (Administrative Unit Pointer), �� MSOH APS/ G.783 linear (Multiplex

Section Automatic Protection Switching), �� HP-POH (High Order Path Overhead), �� Trace Identity (J1), �� RSOH (Regenerator Section Overhead), �� MSOH (Multiplex Section Line Overhead), �� VC12/VC11 LP-POH

(Low Order Path Overhead). {F5} EXIT Escapes to the previous screen.


6.2 STM-1 TEST: BER, continued. (menu #1.0) 6.2.2 {F1} down PTRN from menu #1.0 (menu #1.1)

The Pattern function allows you to select a desired test pattern by pressing

the {F1} down PTRN key from menu #1.0. Choose from the FIXED or PRBS patterns by scrolling the corresponding {F1} or {F2} keys from menu #1.1, as shown below.

Functions Keys for Pattern, Where: {F1} FIXED Scrolls through the following fixed patterns: 1:1, 2:2, 1:3, 1:7, 1:15, 1:31, 2 in 24,

All "1", All "O", Off, depending on mapping modes

{F2} PRBS Selects Pseudo Random Binary Sequence of QRSS, 63, 511, 2047, 2E15-1, 2E20-1,

or 2E23-1, depending on mapping modes. {F3} USER Activates User defined pattern menu #1.1.1

(see section 6.2.2 A). {F5} EXIT Escapes to the previous menu #1.0.


6.2 STM-1 TEST: BER, continued. (menu #1.0)

6.2.2 {F1} down PTRN from menu #1.0, continued. (menu #1.1) 6.2.2 A {F3} USER from menu #1.1 (menu #1.1.1)

The User Defined Pattern function allows you to select between 8 to 32

bytes of user defined patterns. These patterns are programmed in blocks of eight bits each, using hexadecimal notation (see Table 1). To select a user defined pattern, press the {F3} USER key from menu # 1.1, then follow the editor on menu #1.1.2 to either recall or edit and save a new pattern.

Functions Keys for User Pattern, Where: {F1} 0 (up) Sets bit to zero. {F1} 1 (down) Sets bit to one. {F2} CLR (up) Clears the entire pattern. {F2} DEL (down) Deletes the last number entered. {F3} SAVE (up) Saves the programmed test pattern displayed

on the screen, in one of ten memory files via menu #1.1.2, (see section 6.2.2 A-1).

{F3} LOAD (down) Recalls a stored test pattern via menu #1.1.2, (see section 6.2.2 A-1). {F4} TX Transmits the user-defined pattern.


6.2 STM-1 TEST: BER, continued. (menu #1.0) 6.2.2 {F1} down PTRN from menu #1.0, continued. (menu #1.1)

6.2.2 A {F3} USER from menu #1.1, continued. (menu #1.1.1) 6.2.2 A-1 {F3} SAVE/ LOAD from menu #1.1.1 (menu #1.1.2)

Pressing {F3} SAVE or LOAD from menu #1.1.1 activates menu #1.1.2

which allows you to access the following ten save and recall options:

Functions Keys for User Pattern, Where: Up Arrow/ Function: Down Arrow/ Function: {F1} Memory #1 {F1} Memory #6 {F2} Memory #2 {F2} Memory #7 {F3} Memory #3 {F3} Memory #8 {F4} Memory #4 {F4} Memory #9 {F5} Memory #5 {F5} Memory #10


6.2 STM-1 TEST: BER, continued. (menu #1.0) 6.2.3 {F2} INJ from menu #1.0 (menu #1.3)

Pressing {F2} INJ from menu #1.0 activates error Injection menu #1.3, as shown right.

Functions Keys for INJ, Inject, Where: {F1} OvH Activates Overhead menu #1.3.1 (see section 6.2.3 A). {F2} CMI Activates CMI menu #1.3.2 if

STM-1electrical interface is available (see section 6.2.3 B). {F3} ERR Activates Error menu #1.3.3

(see section 6.2.3 C). {F4} ALARM Activates Alarm injection menu

#1.3.4 (see section 6.2.3 D). {F5} EXIT Escapes to the previous menu #1.0


6.2 STM-1 TEST: BER, continued. (menu #1.0) 6.2.3 {F2} INJ from menu #1.0, continued. (menu #1.3)

6.2.3 A {F1} OvH from menu #1.3 (menu #1.3.1) Pressing {F1} OvH from error injection menu #1.3 leads to the

OverHead menu #1.3.1, as shown right.

Functions Keys for Overhead, Where: {F1} UP/DN Moves cursor up or down. {F2} << Moves cursor left. {F3} >> Moves cursor right. {F4} NEXT Scrolls through:

�� Path PTR/ PTR Value, �� Line APS/ APS Msg Count, �� POH (Path Overhead), �� Trace Identity, �� VT2/VT1.5 VT-POH, �� SOH (Section Overhead), �� LOH (Line Overhead), (see section 5.2.6).

{F5} EXIT (down) Escapes to the previous menu.



6.2.3 B {F2} CMI from menu #1.3 (menu #1.3.3) Pressing {F2} CMI from Injection menu #1.3 leads to Inject STM1

Code Mark Inversion menu #1.3.2, as shown right.

Functions Keys for Error, Where: {F1} BURST Injects bursts of CMI errors. {F5} EXIT Escapes to the previous menu.



6.2.3 C {F3} ERR from menu #1.3 (menu #1.3.3) Pressing {F3} ERR from Injection menu #1.3 leads to several Error

menus #1.3.3, an example of which is shown right.

Functions Keys for Error, Where: {F1} FRM (up) Set Frame errors via menu #1.3.3.1 * (see section 6.2.3 C-1). {F1} BIP2 (down) Set B2 via menu #1.3.3.1 {F2} B1 (up) Set B1 via menu #1.3.3.1 {F2} B2 (down) Set B2 via menu #1.3.3.1 {F3} B3 (up) Set B3 via menu #1.3.3.1 {F3} MREI (down) Set Remote Error Indication for M1

via menu #1.3.3.1 {F4} HREI (up) Set far end block error

via menu #1.3.3.1 {F4} LREI (down) Set Remote Error Indication

via menu #1.3.3.1 {F5} NEXT (up) Scrolls through various error screens. {F5} EXIT (down) Escapes to the previous menu. * dependant on mapping mode



6.2.3 C {F3} ERR from menu #1.3, continued. (menu #1.3.3) Pressing {F5} NEXT from menu #1.3.3 activates several Error injection

screens, an example of which is shown right.

Functions Keys for Error, Where: {F1} FRM Set Frame errors via menu #1.3.3.1 (see section 6.2.3 C-1). {F2} CP (up) Set CP errors via menu #1.3.3.1, when CBit DS3 frame format is

chosen.(see section 6.2.3 C-1). {F2} PBIT (down) Set Parity Bit errors via

menu #1.3.3.1 (see sec. 6.2.3 C-1). {F3} FEBE Set Far End Block Errors via

menu #1.3.3.1 (see sec. 6.2.3 C-1). {F5} NEXT (up) Scrolls through various error screens. {F5} EXIT (down) Escapes to the previous menu.



6.2.3 C {F3} ERR from menu #1.3, continued. (menu #1.3.3) Pressing {F5} NEXT from menu #1.3.3 activates several Error

injection screens, an example of which is shown right.

Functions Keys for Error, Where: {F1} FRM (up) Set Frame errors via menu #1.3.3.1 (see section 6.2.3 C-1). {F1} LGC (down) Set Logic errors via menu #1.3.3.1

(see sec. 6.2.3 C-1). {F3} CRC Set Cyclical Redundancy Check via

menu #1.3.3.1 (see sec. 6.2.3 C-1). {F5} NEXT (up) Scrolls through various error screens. {F5} EXIT (down) Escapes to the previous menu.



6.2.3 C {F3} ERR from menu #1.3, continued. (menu #1.3.3) 6.2.3 C-1 {F1} - {F4} from menu #1.3.3 (menu #1.3.3.1)

Pressing the {F1} through {F4} keys from Error menu #1.3.3 leads to

the menu #1.3.3.1, as shown right.

Functions Keys for Error, Where: {F1} ONE Injects single error. {F3} RATE Set Rate. {F4} OFF Turns editor off. {F5} EXIT Escapes to the previous menu.



6.2.3 D {F4} ALARM from menu #1.3 (menu #1.3.4) Pressing {F4} ALARM from Injection menu #1.3 leads to the Alarm

menu #1.3.4, as shown right.

Functions Keys for Alarm, Where: {F1} < -- > Points cursor

right or left. {F2} SCRL Scrolls cursor

up or down. {F3} ON Toggles alarm

to OFF {F4} ON/ OFF Turns Loss of Signal

LOS alarm on or off. {F5} NEXT (up) Invokes additional alarms

screen (see next page). {F5} EXIT (down) Escapes to previous menu.



6.2.3 D {F4} ALARM from menu #1.3, continued. (menu #1.3.4) Pressing {F5} up NEXT from Alarm menu #1.3.4, activates an additional screen as shown right.

Functions Keys for Alarm, Where:

{F1} AIS Toggles Alarm Indication Signal ON and OFF.

{F2} RAI Toggles Remote Alarm Indication ON and OFF.

{F3} MAIS Toggles Multiframe Alarm Indication Signal ON and OFF.

{F4} MRAI Toggles Multiframe Remote Alarm Indication ON and OFF.

{F5} NEXT (up) Invokes additional E1 alarms screen as shown below.

{F5} EXIT (down) Escapes to previous menu.


6.2 STM-1 TEST: BER, continued. (menu #1.0) 6.2.4 {F3} up G821 from menu #1.0

6.2.4 A {F1} START from menu #1.5.1 (menu #1.5.2) 6.2.4 A-1 {F1} STOP from menu #1.5.2 (menu #1.5.1)

The ITU G.821 performance analysis menu #1.5.1 allows threshold settings for Severely Errored Seconds and Degraded Minutes. The test starts when {F1} START is depressed and stops with {F1} STOP. The disadvantage of this method is that it requires bit pattern injection and analysis, thus requiring it to be an out-of-service test. This function can only be accessed in VC3-SPE, VC3-Bulk, VC4-SPE and VC4-Bulk modes. Press the {F5} MAPP key from menu #1.0 to choose these mapping modes.

Functions Keys for Start G.821 monitoring, Where: {F1} START Toggles to STOP menu #1.5.2. {F2} SES SES Threshold, toggle to select:

10E-1, 10E-2, 10E-3, 10E-4, 10E-5, 10E-6. {F3} DM DM Threshold, toggle to select:

10E-1, 10E-2, 10E-3, 10E-4, 10E-5, 10E-6. {F5} EXIT Escapes to the previous menu.

Functions Keys for Stop G.821 monitoring, Where: {F1} STOP Toggles to START menu #1.5.1. {F5} EXIT Escapes to the previous menu.


6.2 STM-1 TEST: BER, continued. (menu #1.0) 6.2.5 {F3} down G826 from menu #1.0

6.2.5 A {F5} up BLCK from menu #1.6.1 (menu #1.6.2) 6.2.5 A-1 {F5} up TIME from menu #1.6.2 (menu #1.6.1)

The ITU G.826 performance analysis menu allows for TIME and BLOCK error injection. This test relies on evaluation of

Block Errors and allows In-Service measurement. Functions Keys for Time/ Block, Where:

{F1} B1 (up) Displays BIP-8 parity word in Regenerator Section (RSOH)

{F2} B2 (down) Displays BIP-H x 24 parity word in Multiplex Section (MSOH)

{F2} B3 (up) Displays High Path BIP 8 (Bit Interleaved Parity).

{F2} LBIP (down) Displays Low Path BIP 2 (Bit Interleaved Parity).

{F3} T3 Displays T3 errors if corresponding mapping is selected

{F4} E1/T1 Displays E1 or T1 errors when corresponding mapping is selected

{F5} BLCK (up) Toggles to BLOCK menu #2.2.1 (see section 5.2.3 B).

{F5} EXIT (down) Escapes to the previous menu.


Section 7 ¡ SDH Applications


Section 8 ¡ Technical Descriptions 7.1 STM-1 Technical Descriptions

TRANSMITTER CLOCK

Internal 155,520,000 Hz +/-5ppm or better Recovered from the received signal External E1 BITS clock 120 Ohm, 2.048 Mhz interface, 120 Ohm balanced, BNC connector,

electrical E1 signal

STATUS LED's: Signal, Frame Sync, Pointer Adjustment, Errors, Alarms, Pattern Sync BERT TESTING VC-4 and VC-3 clear channel (SPE or Bulk)

or mapped to T1, E1 or T3 payload.

PATTERNS: PRBS 2-15-1 and 2-23-1, Fixed - 0000,1111,1010, 1100 and User Programmable 8 bit.

MODES OF OPERATION: Monitor, Pass thru mode, Termination, PDH to SDH ADM test , SDH to PDH ADM test

SDH OVERHEAD DISPLAY: All SOH and POH bytes

STM-1 SIGNAL FREQUENCY: Current, Average, Current offset [ppm]


7.1 STM-1 Technical Descriptions, continued.

LINE RATES STM-1 155Mb

CLOCK SLIPS: Referenced to the internal clock

ALARM MONITOR: LOS, OOF, LOF, MS-AIS, MS-RDI, AU-AIS, AU-LOP, HP-UNEQ, HP-RDI, LP-UNEQ, LP-RFI, TU-AIS, TU-LOP, TU-LOM, LP-RDIS, LP-RDIP, RP-RDIC

G.826 measurements: TIME - Total Time, Available Time, Unavailable Time, Error Free Seconds, Error

Seconds, Severely Errored Seconds, Errored Seconds Rate, Severely Errored Seconds Rate.

BLOCK - Total Block, Available Time, Unavailable Time, Error Blocks, Background Errored Blocks, Errored Blocks rate, Background Errored Blocks Rate.

G.821 measurements: Valid in Bulk or SPE mappings Error Free Seconds, Errored Seconds, Severely Errored Seconds, Degraded Minutes,

Available Seconds, Unavailable Seconds

OTHER MEASURMENTS Signal Frequency. Clock Slips Autoreport Logs in Event Memory and prints periodic alarm and error reports for the SDH Line MAPPINGS- Meets ITU Rec. G.707.

The table on the next page shows all available parameters measured by this option. The availability of these parameters depends on the Mode and there are 14 possible mapping modes with T3 and E1as shown in the following table:


Mode STM-1 TEST BER Results Screens\Mappings

STM1/VC4- BULK

STM1/VC4- SPE

STM1/VC3- BULK

STM1/VC3- SPE

STM1/VC3/

T3

STM1/VC4/ TUG3

/T3

STM1/VC3/

T3/ E1


STM1/VC3/

T3/ T1


STM1/VC3/ VC12/

E1

STM1/VC4/ VC12/

E1

STM1/VC3/VC11/

T1

STM1/VC4/VC11/

T1

Overhead AU PTR Y Y Y Y Y Y Y Y Y Y Y Y Y Y Overhead MSOH APS Y Y Y Y Y Y Y Y Y Y Y Y Y Y Overhead Trace Identity J1 Y Y Y Y Y Y Y Y Y Y Y Y Overhead HP-POH Receive Y Y Y Y Y Y Y Y Y Y Y Y Overh. VC12/VC11 LP-POH Y Y Y Y Overh. Trace Identity J2 Y Y Overhead RSOH Receive Y Y Y Y Y Y Y Y Y Y Y Y Y Y Overhead MSOH Receive Y Y Y Y Y Y Y Y Y Y Y Y Y Y RSOH BIP B1/Frame W Err Y Y Y Y Y Y Y Y Y Y Y Y Y Y MSOH BIP B2/Line UAVS Y Y Y Y Y Y Y Y Y Y Y Y Y Y HP POH BIP B3 Y Y Y Y Y Y Y Y Y Y Y Y VC12/VC11 LP POH Y Y Y Y TUG3/VC3 POH BIP B3 Y Y Y STM1 Alarms/History Y Y Y Y Y Y Y Y Y Y Y Y Y Y T3/E3/T1/E1 Alarms/History Y Y Y Y Y Y Y Y Y Y Logic Errors SDH SDH SDH SDH APS TIME Measurement AUTO TROUBLE SCAN M.2100 G.821 Y Y Y Y G.826 Y Y Y Y Y Y Y Y Y Y Y Y Y Y Mapped T3 Errors Y Y Y Y Y Y Mapped T1 Errors Y Y Y Y Mapped E1 Errors Y Y Y Y



OPTICAL INTERFACE:

SINGLE MODE: Exceeds ITU Recommendation G.957 Application Codes: I-1, S-1.2, L-1.1, L-1.2, L-1.3 per table 1 in ITU G.957 Optical parameters: Better or equal to ones specified in Table 2, ITU G.957 Transmitter: 1310nm and 1550nm Single Mode Intermediate Reach (IR) Class 1 Receiver: Wideband IR Connectors: FC/ PC

TRANSMITTER:

Single Mode, Class 1, Connector type FC/PC (see the table TRANSMITTER PERFORMANCE CHARACTERISTICS ) on next page. 1310 nm ¡ Average Optical Power 0 to ¡5 dBm

Center Wavelength LR1 = 1310 nm 1550 nm ¡ Average Optical Power L0 = -3- 5 dBm

Center Wavelength LR2 = 1550 nm Frame Format ¡ ITU G.707 Line Code -- Binary Non-return to Zero (NRZ) after scramble

RECEIVER:

Minimum sensitivity -34 dbm at 1x 10-10 BER Input Overload -9 dbm at 1x 10-10 BER



ELECTRICAL INTERFACE

Bit Rate - 155,520,000 bps Electrical Characteristics - STM-1 per ITU G.703 Connector Input/Output - BNC , 75 Ohm ,unbalanced Line Code - Coded Mark Inversion CMI Frame Format - Complies with ITU-T G.707



MEASUREMENT CONTROL:

INJECT ERRORS: Method - Manual ,Single or at error ratio of 1x10-n (n=1 to 9)

Type - Frame, Logic, B1, B2, B3, MS-REI, HP-REI, LP-REI, BIP-2

INJECT ALARMS ¡ single, manual LOF, MS-AIS, AU-AIS, HP-UNQ, LP-UNQ, TU-AIS,

TU-LOM, TU-LOP, MS-RDI, AU-LOP, HP-RDI, HP-unequipped , LP-RFI, LP-RDI, LP-RDI, LP-RDIC

CONTROL(INJECT) STM-1 OVERHEAD:

RSOH (M2,M5,A13)

MSOH (B21,H11,S1/Z11,D4,D7,D10,H11) HP-POH (B3) VC12/VC11 LP-POH (V5,J2,N2,K4)

J1 LENGTH (User Trace Identifier- 64byte or 16byte ASCII E.164 with CRC7)



ERROR MEASUREMENTS:

LOGIC Logic, Logic Error Rate, Logic Error Seconds, Logic Error Free Seconds, Pattern Losses, Sync Losses Seconds

RSOH BIP(B1) Errors, BIP(B1) Error Rate, BIP(B1)Error Seconds, BIP(B1) Error Free Seconds,

Frame word Errors, SEF, SEF Seconds, C1(J0), MSOH BIP(B2) Errors, BIP(B2) Error Rate, BIP(B2)Error Seconds, BIP(B2)Error Free Seconds,

Line Unavailable Seconds, AIS Seconds, FEBE Errors, FEBE Error Rate, APS Message Count VC4/VC3 POH BIP(B3) Errors, BIP(B3) Error rate, BIP(B3)Error Seconds, BIP(B3)Error Free Seconds, Path

Unavailable Seconds, Path AIS Seconds, Path FEBE Errors, Path FEBE Error Rate, J1 Trace Identifier

VC11/VC12 BIP(V5) is same as BIP -2

BIP(V5) Errors, BIP(V5) Error rate, BIP(V5)Error Seconds, BIP(V5)Error Free Seconds, Unavailable Seconds, Path AIS/LOP Seconds, Path FEBE Error, Path FEBE Error Rate, J2 Trace Identifier

MS-REI Errors, Error Rate, Error Seconds HP-REI Errors, Error Rate, Error Seconds

LP-REI Errors, Error Rate, Error Seconds G.821 G.826

M.2100



PDH Measurements and Control:

Error Insert - E1 : bit, code, frame, CRC DS3: bit, code, frame, parity, C-parity, FEBE

Alarm Generation - E1: AIS, LOF, LOS RAI, MFRAI, MFAIS, DS3: AIS, Yellow, Idle Alarm Detection - E1: LOS, LOF, AIS, RAI, MFAIS, MFRAI DS3: LOS, OOF, LOF, AIS, Yellow, Idle Test Patterns - E1: 63, 511, 2047,215-1, 220-1, 223-1, 28 different fixed

patterns and 32 bit User Defined DS3: 215-1,220-1, 223-1, 1010,1111,0000,1100, 32 bit user defined

Error Measurements Types: E1: logic, bpv, frame, CRC

DS3: logic,bpv, frame, Parity, C-bit Parity, FEBE Format: error count, BER, errored seconds, error free seconds (elapsed time)

Injection: Manual, single or ratio

Performance Analysis G.821, G.826 (includes BBE, EFS, ES, SES, UAS, AVS, DM)



DS3 INTERFACE Bit Rate - Nominal 44.736 Mb/s Electrical Characteristics - Complies with ANSI T1.102 Connector - BNC, 75 Ohm, Unbalanced

Line Code - B3ZS Frame Formats - M13,C-bit, Unframed

T1 INTERFACE Bit Rate - 1.544 Mb/s

Electrical characteristics - Complies with ANSI T.104 Connector - Bantam ,120 or 75 Ohm, balanced or

BNC, 75 or 120 Ohm , unbalanced Line Code - B8ZS and AMI

Frame Formats D4, ESF, D$ no signaling, ,SLC-96, Unframed E1 INTERFACE Bit Rate - 2.048 Mb/s

Electrical characteristics - Complies with ITU-T G.703 Connector - Bantam ,120 or 75 Ohm, balanced or

BNC, 75 or 120 Ohm , unbalanced Line Code - HDB3 and AMI

Frame Formats CAS,CCS,CAS&CRC, CCS&CRC complies with ITU-T G.704, Unframed

Clock/Calendar Complies with all Gregorian Calendar dates: sets seconds, minutes, hours, days, months and years

Printer/Remote Control Terminal RS-232 serial interface with modem support. Optional PC Windows driver. Provides control , stores results in the instrument memory or PC disk, prints the results.


Power Supply 100-250 VAC , 50/60HZ - Li-Ion internal, rechargeable battery with small battery pack (30min in SDH and 180 minutes in other modes with larger battery pack ( 100 min in SDH,

300 min in other modes) Operational Environment Ambient temperature - 2-40 deg C

Relative Humidity - 20-85% non-condensing Mechanical Weight - 3.9 lbs with small battery pack

4.9 lbs with larger battery pack Dimensions - 8¡ x 8¡ x 2. 7


Section 8 ¡ References 8.1 Relevant ITU Documents

G.703 Physical/ electrical characteristics of hierarchical digital Interfaces

G.707 Network node interface for the synchronous digital hierarchy (SDH).

G.772 Protected monitoring points provided on digital transmission systems.

G.774 SDH information model for the network element view.

G.774.02 SDH configuration of the payload structure for the network element view.

G.744.03 SDH management of multiplex section protection from the network element view.

G.744.04 SDH management of sub network connection protection from the network element view.

G.744.05 SDH management of the connection supervision functionality (HCS/LCS) for the network element view.

G.780 Vocabulary of terms for SDH networks and equipment.

G.783 Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks.

(Replaces G.781, G.782 and G.783 version of 01/94).

G.784 Synchronous digital hierarchy (SDH) management.


G.784 Synchronous digital hierarchy (SDH) management.

8.1 Relevant ITU Documents, continued.

G.803 Architecture of transport networks based on the synchronous digital hierarchy (SDH).

G.810 Definitions and terminology for synchronous networks.

G.811 Timing requirements at the output of primary reference clocks suitable for pleisochronous operation of international digital links.

G.813 Timing characteristics of SDH equipment slave clocks (SEC).

G.825 The control of jitter and wander in digital networks based on the SDH.

G.826 Error performance parameters and objectives for international, constant bit rate digital paths at or above the primary rate.

G.831 Management capabilities of transport network based on the SDH.

G.832 Transport of SDH elements on PDH networks.

G.841 Types and characteristics of SDH network protection architecture.

G.842 Interworking of SDH network protection architecture.

G.957 Optical interfaces for equipment and systems relating to the SDH.

G.958 Digital line systems based on the SDH for use on optical fiber cables.


G.958 Digital line systems based on the SDH for use on optical fiber cables.

8.1 Relevant ITU Documents, continued.

M.2101 Performance limit for bringing into service and maintenance of international SDH paths

and multiplex sections.

M.2110 Bringing into service international paths, sections and transmission systems.

M.2120 Digital path, section and transmission system fault detection and localization.

O.150 General requirements for instrumentation for performance measurements on digital transmission equipment.

O.17s Jitter and wander measuring equipment for digital systems which are based on the SDH.

O.181 Equipment to assess error performance on STM-1 SDH interfaces.

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