14(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
e.g. to upgrade the system, can be installed under power in a free slot of the cabinet.
Sub-equipped boards:
Install sub-equipped boards in the last position after the standard boards to enable easy upgrading without having to
re-number trunks and extensions.
When installing boards with ground brackets in a cabinet of an earlier release not prepared for them, take out the
screws of the ground brackets at the top and bottom of the boards. Then bend the bracket at the top slightly away
from the cabinet to allow a clearance for the front cover to slip on correctly.
5.2.1
EMC
The ferrites, with the ERICSSON ordering number STF 82 601, should be situated close to the slot where the cables
are led out of the cabinet. Two turns through the ferrite core are sufficient to comply with EN 55022 Class B and to
avoid disturbances in non-industrial, residential (home) usage.
5.3
Connection of CM-boards
Note: When installing a CM50-board connect the cable before mounting the CM50-board. The BTU-A board must
also be connected to earth.
bend
front cover
ROF xxx xxxx
cabinet BDV 113 08
CM-
board
Line 0 - 1
Line 2 - 3
Line 4 - 5
Connect the correct type of call metering board, accord-
ing to the figure below, on BTU-A board ROF 157 5110/_
or ROF 157 5127/_ and in the same fashion on the
BTU-C board ROF 157 5111/_. The BTU-C cannot be
equipped with a CM50 board as the flat ribbon cable can-
not be connected and CM12/16 (ROA 219 5135/1).
The following boards are available CM50
ROA 219 5064/1, with flat ribbon cable and CM12/16
ROA 219 5135/1 or ROA 219 5062/1 without cable.
For exact positioning of CM-boards, make use of all
pin-connectors.