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Flexi WCDMA BTS System Module
Description
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# Nokia Siemens Networks 1 (44)
471449A.505
Nokia Flexi WCDMA Base Station, Rel. Flexi
WBTS4.0, Product Documentation, v.2
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The information in this document is subject to change without notice and describes only theproduct defined in the introduction of this documentation. This documentation is intended for theuse of Nokia Siemens Networks customers only for the purposes of the agreement under whichthe document is submitted, and no part of it may be used, reproduced, modified or transmitted inany form or means without the prior written permission of Nokia Siemens Networks. Thedocumentation has been prepared to be used by professional and properly trained personnel,and the customer assumes full responsibility when using it. Nokia Siemens Networks welcomescustomer comments as part of the process of continuous development and improvement of thedocumentation.
The information or statements given in this documentation concerning the suitability, capacity, orperformance of the mentioned hardware or software products are given as is and all liabilityarising in connection with such hardware or software products shall be defined conclusively andfinally in a separate agreement between Nokia Siemens Networks and the customer. However,Nokia Siemens Networks has made all reasonable efforts to ensure that the instructionscontained in the document are adequate and free of material errors and omissions. NokiaSiemens Networks will, if deemed necessary by Nokia Siemens Networks, explain issues which
may not be covered by the document.
Nokia Siemens Networks will correct errors in this documentation as soon as possible. IN NOEVENT WILL NOKIA SIEMENS NETWORKS BE LIABLE FOR ERRORS IN THISDOCUMENTATION OR FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL,DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL OR ANY LOSSES, SUCH AS BUTNOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESSOPPORTUNITY OR DATA, THAT MAY ARISE FROM THE USE OF THIS DOCUMENT OR THEINFORMATION IN IT.
This documentation and the product it describes are considered protected by copyrights andother intellectual property rights according to the applicable laws.
The wave logo is a trademark of Nokia Siemens Networks Oy. Nokia is a registered trademark ofNokia Corporation. Siemens is a registered trademark of Siemens AG.
Other product names mentioned in this document may be trademarks of their respective owners,and they are mentioned for identification purposes only.
Copyright Nokia Siemens Networks 2008. All rights reserved.
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Contents
Contents 3
1 Summary of changes in Flexi WCDMA BTS System ModuleDescription 5
2 System Module operation and main blocks 72.1 Operation 72.2 Functional blocks 10
3 Power requirements of the System Module and transmission sub-modules 19
3.1 Power requirements of the System Module 193.2 Power requirements of transmission sub-modules 20
4 System Module dimensions and weight 21
5 System Module interfaces 23
6 System Module LED indications 39
7 System Module as an extension module 417.1 System Module as an extension module 417.2 FPFA interfaces 42
7.3 FPFA electrical connections 44
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1 Summary of changes in Flexi WCDMABTS System Module Description
Changes between issues 4-0 and 5-0
Editorial changes made.
Changes between issues 3-0 and 4-0
Section System Module operation and main blocks updated with
information on the FTJA transmission sub-module and transmission
cables. The picture of FTOA updated and a figure of the System Module
type label location added.
SectionPower requirements of the System Module and transmission sub-modulesupdated with information on power requirements of transmission
sub-modules and the power consumption of the FSMB and System
Extension Module.
Section System Module interfaces updated with information on System
Module connectors. Connector pin maps and figures of connectors added.
SectionSystem Module LED indications updated the LED indications table
and the LED positions figure.
Section FPFA interfaces added.
Section FPFA electrical connections added.
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2 System Module operation and mainblocks
2.1 Operation
The Flexi System Module hosts the telecom control, system operation and
maintenance, baseband application, transmission, and power distribution
functionality. The System Module can also act as a System Extension
Module operating in a baseband extension mode.
The System Module provides the following BTS external interfaces:
.
BTS Site Element Manager
. external interfaces towards the RNC (Iub)
. three external interfaces towards RF
. site support system interface (for example, battery back-up)
. auxiliarity interface (customer-specific 10/100 Mbps Ethernet port
with overvoltage protection)
. auxiliarity interface 1 Gbps Ethernet for future expansions
. external alarms and controls interface (customer-specific alarms)
. external synchronisation input interface
. external synchronisation output interface
The System Module has an integrated BTS clock that distributes the
synchronisation clocks to other BTS modules. The System Module
hardware is HSDPA and HSUPA compliant.
The System Module uses nominal 48 V DC and distributes it on to RF and
System Extension Modules. The System Module includes integrated fans.
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The System Module can be used, for example, for the following software
functionalities:
. BTS level O&M processing (BTSOM)
. resource management
. node B server
. NBAP handler
. user plane management
See the following figure for an exploded view of the System Module.
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Figure 1. Exploded view of the System Module
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Figure 2. Type label location of the System Module
2.2 Functional blocks
See the following figure for the functional blocks of the System Module.
DN70351805
Type Label
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Figure 3. Functional blocks of the System Module
Ext IFblock
Fan Fan Module
heater
Tempsensors
1-8
Control block
andTiming block
BBprocessing
&RP3
transcodingblock
BBprocessing
&RP3
transcodingblock
BBprocessing
&RP3
transcodingblock
Multiplexing&Summing and RF IF blockEthernet switching
PowerDistribution
block
Transmissionsub-module
(FTxx)
BB ExtensionIF blocks
ControlClockRP1+RP2 DataRP3 Data
Legend:
DN7082531
-48 V DC
TRS IF
-48 V DC,48RTN
Ext IF
RF IF
BB Ext IF
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Flexi WCDMA BTS control and multiplexing
This functionality is responsible for BTS control and management, system
clock generation and distribution to other modules and sub-modules. The
functional distribution of this functionality is as follows:
. Control MCU and clock generation: This includes the NBAP
termination, telecom and overall BTS control functionality, system
O&M functionality, external site support system and other equipment
control. It generates system reference clock and frequency
reference for synchronising with other BTS.
. External interface block: This block facilitates the external interface
for external equipment control.
. Summing and multiplexing functionality: This functional block is used
for data routing between the radio modules and the baseband.
. RF Module interface: This logical functional block is responsible for
providing output/input interface to or from a maximum of three RF
Modules.
. Baseband extension interface: This logical functional block is
responsible for providing output/input interface to or from the System
Extension Module.
Flexi WCDMA BTS signal processing
The Flexi Signal Processor terminates the Iub user plane and is
responsible for L1 processing of the air interface.
Flexi WCDMA BTS transmission sub-module (FTxx)
The transmission sub-module supports the following functionalities:
. ATM over E1/T1/JT1
.
ATM over STM-1. ATM over Ethernet
. Inverse Multiplexing ATM (IMA)
. Synchronisation
. Iub terminations
. Common NBAP and Dedicated NBAP
. AAL2 Signaling and AAL2 User Paths
. Operation and Maintenance (DCN)
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. Iu-PS Control Plane and Iu-PS User Plane
. Iur Control Plane and Iur User Plane
. IP functionalities (DHCP, routing, NTP, packet filtering)
. Transport performance counters
Different variants of the transmission sub-module in the System Module
are supported in order to provide different interface types in the Flexi
WCDMA BTS. Transmission sub-modules (FTxx) provide the physical Iub
interface to the radio network controller (RNC). Transmission sub-module
variants and their functions are listed in the following table.
Table 1. Transmission sub-module variants and their functions
Variant Function
FTPB Provides eight PDH symmetrical
interfaces configurable as E1, T1, or JT1.
FTEB Provides eight PDH coaxial interfaces E1.
FTFA Provides two Nokia FlexBus interfaces.
FTIA Provides four PDH symmetrical interfaces
configurable as E1, T1, or JT1 and two
Ethernet interfaces + one Gigabit
Ethernet. 1)
FTOA Provides one optical STM-1 interface
FTJA Provides four PDH coaxial interfaces E1
and two Ethernet interfaces + one Gigabit
Ethernet.
1) Gigabit Ethernet requires additional hardware (Small Form-factor
Pluggable, SFP transceiver).
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Figure 4. Transmission sub-module FTPB
Figure 5. Transmission sub-module FTEB
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Figure 6. Transmission sub-module FTFA
Figure 7. Transmission sub-module FTIA
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Figure 8. Transmission sub-module FTOA
Figure 9. Transmission sub-module FTJA
See the following table for listing of outdoor transmission cables used for
Flexi WCDMA BTS transmission sub-module (FTxx).
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Table 2. Outdoor transmission cables
Transmission cable Type Resistance
[ohm]
Length
FTCA OD Cable
RJ48C-TQ-M/0
120 ohm 5m
FTCB OD Cable
RJ48C
120 ohm 15m
FTCD OD Cable
SMB-F/0-BT43-F/0
75 ohm 5m
FTCE OD Cable
SMB-F/0
75 ohm 15m
FTCH OD Cable
LC SM
50 ohm
1310 nm
15m
FTCJ OD Cable
TNC-F/0-TNC M/0
50 ohm 2.5m
FTCR OD Cable
RJ 45 CAT5E
100ohm 15m
FTCV OD Cable
RJ48C
120 ohm 30m
FTCX OD Cable
RJ48C
120 ohm 50m
FTCF OD Cable
SMB-F/0
75 ohm 30m
FTCG OD Cable
SMB-F/0
75 ohm 50m
FTCS OD Cable
RJ 45 CAT5E
100 ohm 30m
FTCT OD Cable
RJ 45 CAT5E
100 ohm 50m
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3 Power requirements of the SystemModule and transmission sub-modules
3.1 Power requirements of the System Module
The power supply of the System Module (FSMB) is described in the table
below. The same power consumption figures also apply for the System
Extension Module.
Table 3. Power consumption of the FSMB (not including transmission) and
System Extension Module
Property Value
Max. 170 W*
Typical 106 W
Min. 90 W
Nominal supply voltage 48 V DC**
Input voltage range 40.5 - 57 V DC**
*During cold start-up
**Operational power consumption at room temperature.
The fuse rate for the System Extension Module is 25A.
For transmission sub-module power consumption figures, see section
Power requirements of transmission sub-modules.
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3.2 Power requirements of transmission sub-modules
The typical power consumption of the transmission sub-modules is
described in the table below.
Table 4. Power consumption of the transmission sub-modules
Variant Typical power consumption [W]
FTPB 22.3 W
FTEB 22.3 W
FTFA 89.7 W
FTIA 22.8 W
FTOA 22.8 W
FTJA 22.8 W
Power consumption depends on the equipment connected to the FTFA
sub-module.
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4 System Module dimensions and weightThe table below lists the dimensions and weight of the System Module.
Table 5. Dimensions and weight of the System Module
Property Value
Height 133 mm / 3U
(5.2 in.)
Width 447 mm
(17.6 in.)
Depth without covers 422 mm
(16.6 in.)
Depth with covers 560 mm
(22 in.)
Weight (without transmission sub-module) max 18 kg
(39.8 lbs)
Table 6. Dimensions and weight of the transmission sub-modules.
Property Value
Height 41 mm
(1.6 in.)
Width 245 mm
(9.7 in.)
Depth 308 mm
(12.1 in.)
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Table 6. Dimensions and weight of the transmission sub-modules. (cont.)
Property Value
Weight max. 4 kg
(8.8 lbs)
Warning
The module is heavy. Take care when lifting the module.
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5 System Module interfacesThe System Module is equipped with the following interfaces:
. Front panel connectors
. DC input connector (in the centre of the module)
The System Module has 24 connectors on the module. The connectors,
their types and purposes are listed in the table below. The System Module
is connected to the System Extension Module with a DC cable and two
optical cables.
Table 7. System Module connectors
Connector Type Purpose
Power supply RF module 1 Multi-beam XL power supply
connector
Power delivery to RF1. Fuse
rating 20A.
Power supply RF module 2 Multi-beam XL power supply
connector
Power delivery to RF2. Fuse
rating 20A.
Power supply RF module 3 Multi-beam XL power supply
connector
Power delivery to RF3. Fuse
rating 20A. Recommended
for I-HSPA use. Can be used
for GPS mediator (FSEG).
Power supply System Extension
Module operating in BB-ext
mode
Multi-beam XL power supply
connector
Power delivery to System
Extension Module operating
in BB-ext mode and to the
main fuse for System
Modules. Fuse rating 25A.
Can be used for I-HSPA and
GPS mediator (FSEG).
Transmission interfaces 8 x RJ-48/16 x SMB/2 x TNC/1 x
duplex LC connector
2 x RJ-45 connector
1x GE via SFP transceiver
Variable transmission
interfaces
10/100 Eth RJ-45 connector For local management tool
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Table 7. System Module connectors (cont.)
Connector Type Purpose
10/100 Eth FPMA RJ-45 connector Site support control over IP/
site support hard-wired
alarms
10/100 Eth OVP1) RJ-45 connector Control and location data
transfer
1000 Eth RJ-45 connector External transport equipment
interface (for future use)
EAC MDR36 connector External alarms and controls
Sync out MDR14 connector BTS synchronization outputinterface
Sync in MDR26 connector BTS synchronization input
interface (for external
sources)
OPT-RF 1 Duplex LC connector Interface for RF Module 1
OPT-RF 2 Duplex LC connector Interface for RF Module 2
OPT-RF 3 Duplex LC connector Interface for RF Module 3
OPT-EXT 1 Duplex LC connector System and baseband
extension interfaces
OPT-EXT 2 Duplex LC connector System and basebandextension interfaces
DC input TX25 screw terminals for 8
25 mm2 cable
Power feed
Grounding Screw M5 Grounding
1)The 10/100 Eth OVP cable fulfils overvoltage surge protection standard
GR-1089 Core Intrabuilding. The overvoltage protected OD fast Ethernet
cable is for indoor and outdoor usage.
For lightning surge requirements, see section Lightning surge
requirements in the Requirements for Flexi WCDMA BTS Installation and
Operationdocument.
The System Module front panel is illustrated in the following figure.
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Figure 10. Front panel of the System Module
For the location of LEDs, see the System Module LED indications.
The location of the DC input connector is illustrated in the following figure.
DN7080615
10/100 Eth
10/100 EthFPMA
10/100 EthOVP
1000 Eth
EACSyncIn
SyncOut
OPT-RF1
OPT-RF2
OPT-RF3
OPT-EXT1
OPT-EXT2
Power SupplyRF Module
1
Power SupplyRF Module
2
Power SupplyRF Module
3
Power SupplyBB-EXT Module
Grounding points
Extension Module/System Module
Circuit breakers
RF1 RF2 RF3
Transmissioninterfaces
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Figure 11. DC input connector in the System Module
System Module connector pin maps
The Sync in connector pin map is presented in the following table.
Table 8. External synchronization input interface connector (MDR26)
Pin Signal Pin Signal
1 PPS_in+ 14 GND
2 PPS_in- 15 nc
3 GPStime_in+ 16 GND
4 GPStime_in- 17 nc
5 reserved for future
use
18 GND
6 reserved for future
use
19 reserved for future
use
7 ExtRef2M_in 20 GND
8 nc 21 nc
DN70150444
DC input connector
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Table 8. External synchronization input interface connector (MDR26) (cont.)
Pin Signal Pin Signal
9 reserved for future
use
22 reserved for future
use
10 nc 23 nc
11 GPS_control+ 24 GPS_control-
12 reserved for future
use
25 reserved for future
use
13 ExtRef10M_in 26 GND
Signal descriptions:
. PPS_in: Pulse Per Second (1Hz) frequency and time reference
(electrically RS-485)
. GPStime_in: GPS time reference, GPS receiver control in
(electrically RS-485
. 2M_out: 2,048 MHz system clock reference output (electrically
G.703)
. ExtRef2M_in: 2,048 MHz external frequency reference (electrically
ITU-T G.703)
. GPS_control: GPS receiver control out (electrically RS-485)
. TestWfclk_out: Programmable 100Hz, 50Hz, 25Hz or 12,5Hz
(+SFN0 pulse) system frame clock (electrically LVTTL) (GPS power
control in REL1)
. ExtRef10M_in: 10MHz external frequency reference (electrically
LVTTL)
See the following figure for the MDR26 connector.
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Figure 12. MRD26 connector
The Sync out connector pin map is presented in the following table.
Table 9. External synchronisation output interface connector (MDR14)
Pin Signal Pin Signal
1 PPS_out+ 8 GND
2 PPS_out- 9 HARQ
3 GPStime_out+ 10 GND
4 GPStime_out- 11 Testclk_out
5 reserved for future
use
12 GND
6 reserved for future
use
13 reserved for future
use
7 2M_out 14 GND
Signal descriptions:
. 2M_out: 2.048 MHz clock reference output (ITU-T G.703/chapter 13)
. The signal comes from the Flexi transport part, which is locked
(PLL) to the Iub interface.
. The signal in MDR14 is asymmetric: connect the core of the
coaxial cable to pin 7 and cable shield to GND (e.g. pin 14).
. Testclk_out: 10MHz system clock (LVTTL)
DN70416839
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. The signal comes from BTS OCXO which is used for air I/F
generation => reference for the RF measurement equipment.. Note: the BTS OCXO is not in the PLL mode to the Iub, the
locking is very loose due to air I/F stability reasons.
. The signal in MDR14 is asymmetric: connect the core of the
coaxial cable to pin 11 and cable shield to GND (e.g. pin 10)
. GND: signal ground, for asymmetric signals
. PPS_out: Pulse Per Second (1Hz) frequency and time reference(electrically RS-485)
. GPStime_out: GPS time reference (electrically RS-485)
. TestWfclk_out: Programmable 100Hz, 50Hz, 25Hz or 12,5Hz(+SFN0 pulse) system frame clock (electrically LVTTL)
. HARQ: reserved signal for research and development testing
purposes
See the following figure for MDR 14 connector.
Figure 13. MDR14 connector
The Power supply RF module 1-3 connectors pin map is presented in the
following table.
Table 10. The Power supply RF module 1-3 connectors (4 X multi-beam)
Pin Signal
1 V48N
2 V48RTN
Pin 1
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Signal description (one out of four multi-beam connectors shown):
. V48#: 48VDC power supply
See the following figure for Multi-beam XL power supply connector
Figure 14. Multi-beam XL power supply connector
The 10/100 Eth connector pin map is presented in the following table.
Table 11. The 10/100 Eth connector (RJ45)
Pin Signal
1 RX+
2 RX-
3 TX+
4 GND
5 GND
6 TX-
7 GND
8 GND
Signal description:
. The signals of this connector are according to standard 100Base-TX
(IEEE 802.3) for MDI-X configuration.
See the following figure for RJ45 connector.
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Figure 15. RJ45
The 10/100 Eth FPMA connector pin map is presented in the following
table.
Table 12. The 10/100 Eth FPMA connector (RJ45)
Pin Signal
1 RX+
2 RX-
3 TX+
4 AL1
5 AL2
6 TX-
7 GND
8 GND
Singnal description:
. The signals of this connector are according to standard 100Base-TX
(IEEE 802.3) for MDI-X configuration and as specified below:
. AL#: Site support alarm inputs 1-2 (electrically TTL)
See the following figure for RJ45 connector.
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Pin 1
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Figure 16. RJ45
The 10/100 Eth OVP connector pin map is presented in the following table
(RJ45).
Table 13. The 10/100 Eth OVP connector (RJ45)
Pin Signal
1 RX+
2 RX-
3 TX+
4 GND
5 GND
6 TX-
7 GND
8 GND
Signal description:
. The signals of this connector are according to standard 100Base-TX
(IEEE 802.3) for MDI-X configuration.
See the following figure for RJ45 connector.
DN70416854
Pin 1
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Figure 17. RJ45
The 1000 Eth connector pin map is presented in the following table.
Table 14. The 1000 Eth connector (RJ45)
Pin Signal
1 BI_D2+
2 BI_D2-
3 BI_D1+
4 BI_D4+
5 BI_D4-
6 BI_D1-
7 BI_D3+
8 BI_D3-
Signal description:
. The signals of this connector are according to standard 1000Base-T
(IEEE 802.3) for MDI-X configuration.
See the following figure for RJ45 connector.
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Figure 18. RJ45
The EAC connector pin map is presented in the following table.
Table 15. The EAC connector (MDR36)
Pin Signal Pin Signal
1 EXT_CO0 19 +5V
2 EXT_CO1 20 +5V
3 EXT_CO2 21 +5V
4 EXT_CO3 22 +5V
5 EXT_CO4 23 +5V
6 EXT_CO5 24 +5V
7 EXT_AL0 25 GND
8 EXT_AL1 26 GND
9 EXT_AL2 27 GND
10 EXT_AL3 28 GND
11 EXT_AL4 29 GND
12 EXT_AL5 30 GND
13 EXT_AL6 31 GND
14 EXT_AL7 32 GND
15 EXT_AL8 33 GND
16 EXT_AL9 34 GND
17 EXT_AL10 35 GND
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Table 15. The EAC connector (MDR36) (cont.)
Pin Signal Pin Signal
18 EXT_AL11 36 GND
Signal description:
. EXT_CO#: BTS External control outputs 1-6 (electrically TTL)
. EXT_AL#: BTS External alarm inputs 1-12 (electrically TTL)
See the following figure for MDR36 connector.
Figure 19. MDR36
The DC input connector pin map is presented in the following table.
Table 16. The DC input connector (Terminal block)
Pin Signal
1 V48N2 V48RTN
Signal description:
. V48#: 48VDC power supply
The Grounding connector pin map is presented in the following table.
118
36
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Table 17. The Grounding connector (Screw terminal).
Signal Description L2/L3 Description L1 Description
Ground N/A GND
Table 18. E1/T1/JT1 symmetrical pin map RJ-48C
Pin Signal Wire colour
1 RX_Ring brown
2 RX_Tip yellow
3 RX_Shield
4 TX_Ring white
5 TX_Tip green
6 TX_Shield
7 nc
8 nc
See the following figure for the RJ-48C connector (same as RJ-45).
Figure 20. RJ-48C
The following connectors are optical fibre connectors, and therefore, have
no pin maps.
DN70416854
Pin 1
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. OPT-RF1
. OPT-RF2
. OPT-RF3
. OPT-EXT1
. OPT-EXT2
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6 System Module LED indicationsThe System Module has seven tri-colour LEDs on the front panel to
indicate the operational status of the module and all fault conditions duringoperation. See the following figure for the System Module LEDs.
Figure 21. System Module LED positions
The LED indications of the System Module are listed and explained in the
table below.
It is recommended that you read the information on the LED indications
carefully. A blinking red LED does not always require removing the
module.
FAN
SYSTEM MODULESTATUS
OPT-RF2 OPT-RF3
OPT-RF1 OPT-EXT1
OPT-EXT2
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Table 19. System Module LEDs (from left to right)
LED Colour
System Module status . Red:Module self-test or reset (LED red for < 5 seconds) or
major alarm or critical alarm
. Red, blinking:Minor alarm
. Yellow:Stand-by or blocked
. Yellow, blinking:SW download or configuration ongoing,
module non-operational
. Green:Module operational (the cell can be locked in the
RNC)
. Green, blinking: Module is loading software or parameters
or local maintenance access when modules are operational
Fan status . Red:Fan fault
. Green:Fan OK
RF Module 1 fiber connection status . Red:no connection
. Green:connection OK
. Yellow:not in use
RF Module 2 fiber connection status . Red:no connection
. Green:connection OK
. Yellow:not in use
RF Module 3 fiber connection status . Red:no connection
. Green:connection OK
. Yellow:not in use
System Extension Module 1 fiber
connection status
. Red:no connection
. Green:connection OK
. Yellow:not in use
System Extension Module 2 fiber
connection status
. Red:no connection
. Green:connection OK
. Yellow:not in use
Tip
You can inspect the state of all BTS or transmission-related alarms from
the LED on the transmission sub-module.
Note that the FTFA unit has two additional radio-specific LEDs on the front
panel.
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7 System Module as an extension module
7.1 System Module as an extension module
The System Module can be used as a System Extension Module operating
in a baseband extension mode to add channel capacity. In this case, it is
connected to the System Module by connecting two optical cables and a
DC cable. These items are provided with Flexi System Extension Kit
(FSKA).
When the System Module is used as a System Extension Module
operating in a baseband extension mode, a transmission sub-module is
not installed. Instead, a dummy transmission sub-module is installed to
provide IP protection. This item is also included in Flexi System ExtensionKit (FSKA).
When the System Module is used as a System Extension Module
operating in a baseband extension mode, external synchronisation input
connectors cannot be used. Synchronisation is provided by the System
Module. For installation instructions, see the Installing Optional Items
document. For commissioning instructions, see the Nokia Flexi WCDMA
BTS Commissioningdocument.
When integrating the System Extension Module to Flexi WCDMA BTS, no
commissioning is required. Once the System Extension Module has beenconnected to the System Module and powered up, the auto detection
functions of Flexi WCDMA BTS detect the System Extension Module and
connect the System Extension Module to the normal operation of the BTS.
As for software requirements, the auto detection requires that WN4.0 BTS
SW exists and is active both in the System Module and System Extension
Module to be connected to.
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The System Extension Module provides a basic capacity of 32 CE without
the channel capacity licence. Enabling more CE capacity of the SystemExtension module for service requires that the channel capacity licence
(RAN912 Channel Capasity LK) with sufficient capacity is downloaded to
the BTS.
7.2 FPFA interfaces
Power is distributed from Flexi Power Distribution and Fuses (FPFA) to the
transmission sub-modules in the System Module. See the following figure
for the location of the FPFA.
Figure 22. Location of the FPFA and transmission sub-module in the System
Module
There are two types of FPFAs available:
. A101 version
. A102, A103 or later
There are differences between these versions in the inner connections.
FPFA inputs and outputs
With all FPFA versions, always use busbar input connector (with screw
connection) for input connections of the FPFA and when connecting power
to the extension module.
DN70424873
Type Label
Transmission sub-moduleFPFA
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The multibeam connectors in the front panel must not be used as input to
the FPFA. The multibeam connectors are not hot-plug connectors. Alwaysswitch off the power via the on/off switch on the FPFA front panel when
connecting or disconnecting the RF or Extension module to the FPFA.
Figure 23. FPFA interfaces
The above figure illustrates the System Module core version 101 and 102.
Please check the core version from the type label indicated in the previous
picture.
LED indications for RF1, RF2, RF3 and EXT
LEDs (4) on the front panel indicate the state of the circuit breakers (CB) if
load (for example the RF Module or the System Extension Module) isconnected to FPFA output. When lit, the LED is red.
LED on:
. Load connected to FPFA output and CB has tripped
. Load connected to FPFA output and CB switch pulled to off position
LED off:
RF1RF2
RF3EXT Connector to System Module
(located on the bottom)
DC input connector forSystem Module andExtension Module
DN70322858
Circuit breakers:RF1 RF2 RF3 Extension Module/System Module
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. Load not connected at all
. Load connected to FPFA output and the power supply is on (CB hasnot tripped)
7.3 FPFA electrical connections
Note that there is a risk of short circuit. Connect the power cable as
instructed.
FPFA version A101
Extension module power supply comes through the circuit breaker and
extension module power can be switched off via the circuit breaker. This
must be done if the extension module is connected to the System Module
to avoid hot-plug connection. This also required when disconnecting from
the System Module.
When pulling the EXT circuit breaker switch to off position, switch off the
power supply to the extension module. Power feed to the System Module
is still on.
FPFA version A102, A103 or later
FPFA versions A102, A103 or later have a common power supply via the
same circuit breaker for the System Module and the System Extension
Module. This means that the same circuit breaker switch can be used toswitch on and off the power to the System Module and the System
Extension Module.
By pulling the EXT circuit breaker on/off switch in the front panel, you can
reset the System Module and extension modules.
When connecting the extension module to the System Module, switch off
the circuit breaker to avoid hot-plug connection to extension modules.After that, switch off the System Module.
This is also required when disconnecting the extension module from the
System Module.
Flexi WCDMA BTS System Module Description
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