Installation - Page 19
DECT - Installation Manual
Page 19
38HBKD0001SAH – Issue 14 (27th October 2003)
Installing DECT Alog Boards (DAB)
Connecting a DAB Card to the MDF
This section currently only covers connection of DAB cards and not DAB-
ER boards
(see Connecting a DAB-ER Card to the MDF on page 20)
.
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 Card.
2. At the MDF, wire the pairs as shown below to the PBX two-wire
circuits.
– We strongly recommend that all eight pairs are connected even if
not being used. This simplifies later system expansion.
– 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 Pin - Wire Pair
Channel 0
14 - White/Blue.
01 - Blue/White.
Channel 4 20 - White/Slate.
07 - Slate/White.
Channel 1
15 - White/Orange.
03 - Orange/White.
Channel 5 21 - Red/Blue.
09 - Blue/Red.
Channel 2
17 - White/Green.
04 - Green/White.
Channel 6 22 - Red/Orange.
23 - Orange/Red.
Channel 3
18 - White/Brown.
06 - Brown/White.
Channel 7 24 - Red/Green.
12 - Green/Red.
3. Ensure that the cable, the wire pairs and the MDF panels are clearly
labeled.
4. Configuration of the two-wire extension depends on the PBX type. The
default settings of the DAB assume the following signaling
(which are
compatible with a defaulted INDeX two-wire circuit)
:
–
Ring frequency:
20-60Hz.
–
Recall mode:
Loop break - 100ms.
–
Dial Mode:
DTMF.
–
Dial Tone Filter:
303-549Hz.
– These values can be altered for each DAB channel through the
system database.
5. Use the System Details form at the back of the manual to record PBX
extension numbers against the matching DAB and channel numbers.