Avaya DECT Installation Manual page 20

Page 20 - Installation
Connecting a DAB-ER Card to the MDF
Power Fail Circuits
Page 20
Installing DECT Alog Boards (DAB)
This section currently only covers connection of DAB-ER cards and not
DAB boards (see Connecting a DAB Card to the MDF on page 19). Each
board is supplied with a 5 metre cable for connection to the MDF.
1. Attach the DAB Cable (12-pair cable with 25-way female D-type
connector) to the base of the DAB-ER Card.
2. At the MDF, wire the pairs as shown below to the PBX two-wire
circuits.
– Do not connect INDeX 32-pair cable wires into the same connection
strips as the INDeX DCU/DEB cable. These have differing wire
diameters which may lead to poor wire contact.
Channel Pin - Wire Pair
Channel 0 14 - White/Blue (A).
01 - Blue/White (B).
02 - Red/Slate (Earth).
Channel 1 15 - White/Orange (A).
03 - Orange/White (B).
16 - Black/Orange
(Earth).
Channel 2 17 - White/Green (A).
04 - Green/White (B).
05 - Slate/Red (Earth).
Channel 3 18 - White/Brown (A).
06 - Brown/White (B).
19 - Orange/Black
(Earth).
3. Ensure that the cable, the wire pairs and the MDF panels are clearly
labelled.
4. Configuration of the two-wire extension depends on the PBX type.
Note: When installed the DAB-ER defaults to TBR, to change the
recall mode you must alter the database settings (see Altering
DAB (IWU) Card Settings on page 24).
5. Use the System Details form at the back of the manual to record PBX
extension numbers against the matching DAB and channel numbers.
For BABT approvals, all PBX systems with analogue trunk connections
must meet certain power fail requirements. These require that at least
20% of analogue trunks automatically connect directly to analogue two-
wire extension sockets during power failures.
Due to regulatory approval restrictions on DECT systems, INDeX DECT
DAB channels are not approved for direct connection to the PSTN (this is
not due to any technical restrictions). As a result, DAB channels must not
be connected to analogue PBX extensions which connect directly to
analogue trunks during PBX power failures.
Channel Pin - Wire Pair
Channel 4 20 - White/Slate (A).
07 - Slate/White (B).
08 - Black/Blue (Earth).
Channel 5 21 - Red/Blue (A).
09 - Blue/Red (B).
22 - Red/Brown (Earth).
Channel 6 22 - Red/Orange (A).
23 - Orange/Red (B).
11 - Blue/Black (Earth).
Channel 7 24 - Red/Green (A).
12 - Green/Red (B).
25 - Brown/Red (Earth).
DECT - Installation Manual
38HBKD0001SAH – Issue 14 (27th October 2003)