46(57)
Datum/Date
Rev
Dokumentnr/Documentnr
Uppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved
Kontr/Checked
Tillhör/Referens-File/Reference
1999-07-15
V
1531-BDV 113 08 Uen
INSTALLATION INSTRUCTION
Faktaansvarig - Subject responsible
6.7.7
Power Feeding of Base Stations
When using any of the adapters mentioned below care must be taken to configure the IC-CU2 boards for local BS
feeding. If the BSs are to be fed locally the remote power feeding switch on the boards should be set to the position
disconnecting the feeding from the back plane and no external feeding to the board should be connected.
Adapter for Base Station (KRCNB 201 03/_)
An AC-adapter to feed the BS locally is available for 230VAC/24VDC (BMLNB 101 04) for all European countries ex-
cept for the UK and Cyprus. In other countries it has to be purchased locally and must meet the specifications given
below:
Output voltage:
between 12 V and 56VDC
Output power
7.5W minimum
Adapter for Base Station (KRCNB 301 03/_)
The 24 VDC adapter (BMLNB 101 09/n) is fitted with a 8-pin modular plug that can be plugged into one of the data/
power connectors of the base station.
6.7.8
Software upgrade
If necessary, the software in the BS can be updated by downloading new software to the BS. Downloading can be
performed without disconnecting the BS. The new software is stored in flash memory.
7
LINE NETWORK
The line network for PBX-extensions is to be installed in accordance with the stipulations for standard telephone
networks. Twisted pair cables must be used for the lines and a wire diameter 0.5 mm is recommended in order to
reach full line length, i.e. 800 m.
No stubs and/or branches may exist on a digital extension lines, as they could cause transmission
problems. This does not apply for ISDN configurations.
•
The network lines are to be connected directly to the boards with prefabricated cables which are equipped with
EURO-connectors for 4 wire-pairs
•
In those cases where a separate ERICSSON MDF has been installed, prefabricated cables are used between
the MDF and board connectors in the exchange cabinet.
These cables have EURO-connectors mounted at one end for connection to the board
To connect the ELU-A, ELU-D, MFU, BTU-A, BTU-C and BTU-E to MDF, use cable:
•
TSR 902 0444/1 (length = 1.5 m) is terminated with standard ERICSSON connectors
•
TSR 902 0472/3 (length = 6 m) is equipped with connector only at the exchange side
•
TSR 901 0472/2 (length = 15 m) is equipped with connector only at the exchange side
For connection of BTU-D, use cable:
•
TSR 225 1304/20000, 75
Ω
coaxial cable
•
use the cable TSR 902 0444/1 for 120
Ω
connection or a double shielded cable TSR 901 0481/20000 (adhere
to local requirements).