8-OTC107702 OptiX OSN 38006800 Equipment Commissioning ISSU

8/13/2019 8-OTC107702 OptiX OSN 38006800 Equipment Commissioning ISSU

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Copyright © 2008 Huawei Technologies Co., Ltd. All rights reserved.

Opti X OSN3800/6800 EquipmentCommissioning



Copyright © 2008 Huawei Technologies Co., Ltd. All rights reserved. Page1

Foreword

Before this course, you should:

Be familiar with OSN 38006800 equipments.

Illustrate the basic signal flow of OSN 38006800 equipments.

Understand the functions of cards of OSN 38006800equipments.

Be familiar with related testing instruments.




Objectives

Upon completion of this course, you will be able to:

Describe the method of OSN 38006800 equipments

commissioning

Perform OSN 38006800 equipments single-station testing andcommissioning

Perform OSN 38006800 equipments system commissioning

independently

Resolve some common problems in commissioning




Contents

1. Preparations for Commissioning

2. Single-station Commissioning

3. Network Commissioning




Contents


1.1 Instruments and Tools

1.2 Engineering Design Information

1.3 Requirements on Commissioning Engineers




Instruments and ToolsTool or Tester Usage

Optical Spectrum Analyzer Used in the system index test.

Optical power meter

Used to test the actual received optical power, the

receiver sensitivity and the receiver overload at optical

interfaces.

Laptop Used to install the Web LCT network management systemduring the network element (NE) commissioning.

Fixed optical attenuator Used to weaken the light received by an optical interface.

Flange Used to transfer the fiber jumper.

Variable Optical AttenuatorUsed to test the receiver sensitivity and the receiver

overload.

Cross/Straight screwdriver Used to install or uninstall the board screws/power box.

Cassette cleaner or lens

tissueUsed to clean the end faces of fibers.

Fiber jumper Used for connections during the optical power test


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Engineering Design Information

Engineering Survey DocumentThe survey report

The survey guide

Engineering Design Document

Network diagram

Board layout diagram of the cabinet

Wavelength allocation table

Configuration diagram of optical amplifiers

Fiber connection diagram

Design description file




Requirements on CommissioningEngineers

The commissioning engineer must be familiar with:

SDH, PDH, WDM and Ethernet theories.

Opti X OSN 3800/6800.

T2000 or Web LCT, and is skillful at using it for configuringservices.

Testers (WDM, SDH and Ethernet).




Questions

What types of instrument do we need?

Which engineering design documents do we need before

the commissioning?




Contents



3. Network Commissioning




Contents


2.1 Single-Station Hardware Check

2.2 Power-on Check

2.3 Sub-rack Power-on Test

2.4 Setting the NE ID and IP

2.5 Single-station ECC commissioning

2.6 Single-Station Parameter Testing

2.7 Ending




Single-Station Hardware Check

Checking the CabinetComply with the engineering drawing.

Fiber extractors and anti-wrist straps are there.

No other unrelated objects.

Checking the Sub-rackGrounding of the sub-rack.

No screws, broken & bended pins on the backplane etc.

Checking Cable DistributionPower supply cables, grounding cables, external alarms wiring andpatch cords.




Single-Station Hardware Check ( Cont .)

Door




Single-Station Hardware Check ( Cont .)

DCMMake sure DCMs are correctly installed.

Make sure the DCMs are compliant with the design

document.

Check the ID of SCC

Entire network planning, no repetition.




Power-on Check

Step Content Requirements

1

Testing voltagebetween theinput cableterminals

OSN 3800 DC -38.4V -72V DC

AC 90V 285V AC

OSN 6800 – 38.4 V – 57.6 V ( – 48 V DC ± 20%)

– 48.0 V – 72.0 V ( – 60 V DC ± 20%)

2

Checkingresistance

(all switches :OFF

Between NEG1 (-) or NEG2 (-) and RTN1 (+) or RTN2(+),the value is ∞.

Between NEG1(-) or NEG2(- ) and PGND, the value is ∞.

3

Checkingresistance

(all switches :ON

Between NEG1 (-) or NEG2 (-) and RTN1 (+) or RTN2(+),thevalue is more than 20 k .

Between NEG1(-) or NEG2(-) and PGND, the value is morethan 20 k .




Power-on Check ( Cont .)

-

+

-

+




Sub-rack Power-on Test

Step Content Requirements

1Powering on Sub-

rack

Check if the indicator on the front panel of the boards is

on.

2 Checking the fan Check the indicator on the front panel of the fan.

3Checking the board

indicators

The green indicator of each board flashes once every

other second.

4Testing the RESET

ButtonUsed to reset the SCC.

5 ALM CUT Button Used to cut off the audible alarm.

6 LAMP TEST Button Used to test all the indicators in the sub-rack.




Setting the NE ID and IP

Set the NE ID




CPU

123123

Setting the subrack ID

Set AUX subrack ID

Pay attention to set the ID e.g. ID=001

CPU

123

J u m p e r c a p

J u m p e r

Representing 1 Representing 0 Representing 0




Single-station ECC commissioning

OSN 3800 single-station ECC connectionNM_ETH1/2: communication between NE and NMS.

NM_ETH1/2: communication between NEs.

NMSHUB

GNE GNE

Sub-rack NE 1

Sub-rack NE 2

Sub-rack NE 1

NM_ETH1/2 NM_ETH1

NM_ETH1/2

NM_ETH2

Cabinet 1 Cabinet 2




Single-station ECC commissioning(Cont .)

OSN 6800 single-station ECC connectionETH1/2/3: cascading between master sub-rack and slave sub-rack.

NM_ETH1/2: communication between NE and NE or between NE and

NMS.

NMSHUB

Master sub-rack

Slave sub-rack 1

Slave sub-rack 2

ETH1/2/3ETH1/2/3

NM_ETH1/2

Cabinet 1 Cabinet 2

Master sub-rack

Slave sub-rack 1

Slave sub-rack 2




Single-station Parameter Testing

OTUMean launched optical power, Central Wavelength and Offset

and so on.

M40/M40V Attenuation.

D40/D40V Attenuation, Isolation.

EDFA Actual input optical power, Actual output optical power, The gain

of flatness and so on.

NOTE : Refer to OTC055901 Opti X WDM Testing Slides




Questions

What is the value of the impedance between RTN1(RTN2)and PGND?

Do we need to test the voltage between the power terminal

before power-on?




Contents

3.1 Requirements of Optical Power Commissioning

3.1.1 OTU Commissioning

3.1.2 Tributary Board Commissioning

3.1.3 Line Board Commissioning

3.1.4 EDFA Commissioning

3.1.5 Raman Amplifier Commissioning

3.1.6 OSC Board Commissioning3.1.7 OMU/ODU Commissioning




OTU Commissioning

If no client traffic accessed, force the OTU to emit light.

Disable ALS, Open the Laser.

Adjusting the Input Optical Power of OTU

Optimal input power : (sensitivity+3)~(overload-5)dBm.

Adjusting the Output Optical Power of OTU

Need to adjust the VOA before OTU to close the typical power

value at optical amplifier.




Tributary Board Commissioning

Adjusting the input optical power at client side


Adjusting the output optical power of OTU

Normally, needn’t to adjust the output optical power.




Line Board Commissioning

Adjusting the input optical power of OTU


Adjusting the output optical power of OTU

Need to adjust the VOA before Line board to close the typicalpower value at optical amplifier.




EDFA Commissioning

The requirement of input/output optical power for EDFAType Typical input/output power

for single channel (dBm)

Standard

Gain dB

Gain Range

dB

40 channels 80 channels

OBU101 -20/0 -23/-3 20 20

OBU103 -19/4 -22/1 23 23

OBU104 -17/0 -20/-3 17 17

OBU205 -16/7 -19/4 23 23

OAU101 -16/4 -19/1 20 20~31

OAU101 -20/4 -23/1 24 24~36

HBA -19/10 \ 29 29




Example 1 :Parameters:Typical input/output power for each channel : -16/+4dBm

The signal gain range : 20 ~ 31dB

EDFA Commissioning ( Cont.2 )

OAU101 Commissioning

-18dBm

IL of DCM: 8dB

+4dBm A Case:

Input power for each channel : -18dBm

In this case, change the Gain into 22dB byNMS

OAU1

DCM





Note : Max. Signal Gain=Maximum Gain-Loss of DCM

Min. Signal Gain ≤ Signal Gain ≤ Max. Signal Gain

The Signal Gain can be adjusted through the NMS for the OAU.

For the case:

Max. Signal Gain=31dB-8dB(IL of DCM)=23dB

The Signal Gain range: 20~23dB

20dB ≤22dB ≤23dB




Example 2 :Parameters:Typical input/output power for each channel : -16/+4dBmThe signal gain range : 20 31dB


OAU101 Commissioning

A Case:

Input power for each channel : -20dBm

Can we adjust the gain to 24dB ?

-20dBm

IL of DCM: 8dB

OAU1

DCM

Min. Signal Gain ≤ Signal Gain ≤ Max. Signal Gain




Raman Amplifier Commissioning

On-off gain = Optical power on the SYS interface when thelaser is enabled – Optical power on the SYS interface when

the Raman laser is disabled

Requirements for Line Quality Raised by Raman Amplifiers0 km ~ 20 km : Do not use fiber connectors.

0 km ~ 10 km : The single-point additional loss is less than 0.1 dB

(G.652) or 0.2 dB (G.655).

10 km ~ 20 km : The single-point additional loss is less than 0.2

dB (G.652) or 0.4 dB (G.655).




OSC Board Commissioning

Optical supervisory channel (OSC)

OSC unit : SC1, SC2.

OSC unit optical power requirements

Receiving Range : -48 dBm ~ -3 dBm.

Optimal Receiving : -30 dBm.

Launched Power : -4 dBm ~ -0 dBm.




ODU/OMU Commissioning

Adjust the attenuation of the VOAs in each channel of the

M40V/D40V to 5 dB before commissioning.

Adjust the VOAs in M40V/D40V to make the optical power (or OSNR)

closer to the average value. Ensure that the maximum difference of optical power among all the

channels is within 4 dB and that of OSNR is within 2 dB.




Contents

3. Network Commissioning3.1 Requirements of Optical Power Commissioning

3.2 Network Commissioning

3.3 Others Commissioning




Contents

3.2 Network Commissioning3.1.1 Supervisory Channel Commissioning

3.1.2 Transmitting End of OTM

3.1.3 OLA3.1.4 Receiving End of OTM

3.1.5 FOADM

3.1.6 ROADM




Supervisory Channel Commissioning

Optical supervisory channel (OSC)Receiving Range : -48 dBm ~ -3 dBm.

Optimal Receiving : -30 dBm

Launched Power : -4 dBm ~ -0 dBm

Electrical supervisory channel (ESC)

When the OTU starts to work and the service is normal, the ESC

route is set up.When no client traffic is accessed, force the OTU to emit light.




Supervisory Channel Commissioning -OSC

SC

1

F

I

U

SC2

SC1

SCC SCC SCC

F

I

U

F

I

U

F

I

U

NMS

OTM OTMOLA

OSC

OSC

OSC

OSC

Traffic

TrafficTraffic

Traffic Traffic

Traffic




Supervisory Channel Commissioning -OSC

A certain NE should be internal clock source, others shouldtrace the clock for synchronizing and processing supervisory

signal.

Priority of clock source West/East external clock, Internalclock.Internal clock Tracing West Clock

W W W WE E

Tracing West Clock Tracing West Clock




SCC

Supervisory Channel Commissioning -ESC

OTU

OTU

OAU OAU

OAU OAU

M40

M40

M40

D40

M40

M40

M40

D40

SCC

NMS




OAU101

PA BA

F

I

U

F

I

U

DCM

OLA

-16+10lgN +4+10lgN +3+10lgN

1. VOA① : adjust the input optical power for OAU1 closer to typical power.

2. OAU1 : change the gain to make sure the output power is typical.

3. When the input power is lower than typical power: firstly remove the VOA ① ,

secondly change the gain of OAU1 to make sure the output power is typical.

①




Receiving End of OTM

M40 D40OPU03

F

I

U

M40

D40

OTU

OTU

OAU1

(-16+10lgN) (4+10lgN) -2dBm PIN: 7dB (Att.)

APD:15dB (Att.)

1. VOA ① : adjust the input optical power for OAU1 closer to typical power.


3. When the input power is lower than typical power: firstly remove the VOA ① ,

secondly change the gain of OAU1 to make sure the output power is typical.

4. VOA ② : add corresponding fixed attenuator for OTU boards at IN ports.

①

②




1. VOA ① : adjust the input optical power for OAU1 closer to typical power,


3. VOA ② : add corresponding fixed attenuator for OTU boards at IN ports.

4. VOA ③ : adjust the optical power of passing-through channels.5. VOA ④ : adjust the optical power of added channels.

①

②

③

④ OAU101

PA BA

F

I

U

F

I

U

DCM

MR2MR2

OTU

OBU102

OTU

OTU

OTU

FOADM (MR2+MR2)-16+10lgN +4+10lgN -19+10lgN +4+10lgN





2. OAU1 : change the gain to make sure the output power is typical.3. VOA ② : add corresponding fixed attenuator for OTU boards at IN ports.

4. The VOAs in ROAM ③ and ④ :adjust optical power of passing-through channels.

5. The VOAs in ROAM ④ : adjust optical power of the added channels.

ROADM (ROAM+ROAM)

①

②

③ ④

OAU1

PA

F

I

U

F

I

U

DCM

OBU103

-16+10lgN

+4+10lgN -3+10lgN

+4+10lgN

ROA

M

OTU

OTU

OTU

OTU

ROA

M

D40

BA

-19+10lgN

DM EXPO

EXPI




① ② ③

OAU1

PA

F

I

U

F

I

U

DCM

OBU103BA

ROADM (WSD9+RMU9)

WSD9

OTU

OTU

OTU

OTU

RMU9

D40

-16+10lgN +4+10lgN -19+10lgN +4+10lgN


2. OAU1 : change the gain to make sure the output power is typical.3. The VOAs in WSD9 ② : adjust the optical power of dropped the channels and

passing-through channels.4. VOA ④ and VOAs in RMU9 ③ : adjust the optical power of the added channels.

EXPO IN

OTU

D40M40

OTU

④




①

② ③

OAU1

PA

F

I

U

F

I

U

DCM

OBU103BA

ROADM (WSD9+WSM9)

WSD9

OTU

OTU

OTU

OTU

WSM9

D40

-16+10lgN +4+10lgN -19+10lgN +4+10lgN

EXPO EXPI

OTU

D40M40

OTU



3. The VOAs in WSD9 ② : adjust the optical power of the dropped channels4. The VOAs in WSD9 and WSM9:adjust optical power of passing-through

channels.

5. VOA④ and VOAs in the WSM9 ③ : adjust optical power of the added channels.

④




Contents

3. Network Commissioning3.1 Requirements of Optical Power Commissioning

3.2 Network Commissioning

3.3 Others Commissioning




Contents

3.2 Others Commissioning3.2.1 Network parameter testing

3.2.2 Testing bit errors




Network Parameter Testing

OTU Actual receiving optical power,

Transmitting

end EDFA

Actual launched optical power, Actual receiving optical power,

Optical power Flatness of each wavelength and so on,

Receiving end

EDFA

Actual launched optical power, Actual receiving optical power,

Optical power flatness of each wavelength, OSNR and so on.

NOTE : Referring toOTC055901 Opti X WDM Testing Slides




Network Parameter Testing (OSNR)

Make sure OSNR value is higher than the requirement atreceiving end, otherwise bit errors will occur.

The type of OTU at WDM sideThe requirement of OSNR

dB

2.5G(with FEC) ≥16

2.5G(without FEC)≥21 without ESC

≥22 with ESC

5G(3400ps/nm) (with FEC) ≥22

5G(6400ps/nm) (FEC) ≥20

10G(without FEC) ≥26

10G (with FEC) NRZ ≥20

10G (with AFEC) NRZ ≥15.5




Testing Bit Errors

Testing the 10-Minute Bit Errors of Each Optical Channel.There must be no abnormal alarm or performance event in the

entire network.

O

T

U

O

T

U

Signal

Analyzer

IN Tx

OUT Rx

Rx

Tx

Site A Site B




Testing Bit Errors ( Cont.)

Testing All-Channel Bit Errors.There must be no abnormal alarm or performance event in the

entire network.

OTU

OTU

OTU

OTU

OTU

OTU

Signal

Analyzer

OUT

IN

Rx

Tx

Site A Site B




Summary

Preparations for CommissioningSingle-station Commissioning

Network Commissioning




Appendix A (Insertion Loss)

Board Port InsertionLoss dB Board Port Insertion

Loss dB

ACSIN-BD <1.5

MR8

IN-Dx <4

BA-OUT <1.5 Ax-OUT <4

M40 Mx-OUT <6.5 IN-MO <3.5

M40V Mx-OUT <8 MI-OUT <3.5

D40 IN-Dx <8

MR4

IN-Dx <2.2

D40V IN-Dx <8 Ax-OUT <2.2

FIU

IN-TM <1.5 IN-MO <1.5

RM-OUT <1.5 MI-OUT <1.5

IN-TC <1MR2

IN-Dx <1.5

RC-OUT <1 Ax-OUT <1.5




Appendix B (Insertion Loss)

Board Port InsertionLoss dB Board Port Insertion

Loss dB

MB2

IN-Dx <3

ROAM

Mx-OUT <9

Ax-OUT <3 IN-DM <7

IN-MRO <2 EXPI-OUT <14

MRI-OUT <2 IN-EXPO <3

IN-BMO <0.7WSD9

IN-DMx <8

BMI-OUT <0.7 IN-EXPO <8

RMU9

EXPI-OUT <8.5

WSM9 AMx-OUT <8

AMx-TOA <12.5 EXPI-OUT <8ROA-OUT <1.5

MR2IN-MO <1

MI-OUT <1



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8-OTC107702 OptiX OSN 38006800 Equipment Commissioning ISSU

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