PARTNER® Version, Installation and Reference Manual
Page 72
- Issue 1a (30 January 2010)
IP Office Essential Edition
4.7.1 DS Phones
When digital phone extensions are required in another building, additional In-Range Out-Of-Building (IROB) protective
equipment must be used. For phones connected to IP Office DS ports, the supported device supplied by ITWLinx is a
towerMAX DS/2* module. This IROB device was previous badged by Avaya as the 146E IROB.
The protection device should be installed as per the instructions supplied with the device. The ground points on the IP
Office control unit and the DS modules must be connected to a protective ground using 18AWG wire with a green and
yellow sleeve.
Typically the IROB
2 RJ45 EQUIPMENT ports are straight through connected to the 2 RJ45 LINE ports. This allows existing RJ45 structured
cabling, using pins 4 and 5, to be used without rewiring for up to two DS connection. However each of these ports can be
used to connect a second extension using pins 3 and 6.
LINE
Signal
EQUIPMENT
1
Not used.
1
2
Not used.
2
3
Ring II (Optional)
3
4
Ring I
4
5
Tip I
5
6
Tip II (Optional)
6
7
Not used.
7
8
Not used.
8
* The towerMAX range of devices are supplied by ITWLinx (
http://www.itwlinx.com
).
4.7.2 Analog Phone Barrier Box
Where analog phone extensions are required in another building, additional protective equipment must be used, in the
form of IP Office Phone Barrier Boxes and protective earth connections.
·
The correct IP Office specific barrier boxes must be used. These modules have been designed specifically for the
signalling voltages used by the IP Office system:
·
Only the IP Office Phone Barrier Box V2 should be used.
·
No other type of analog phone barrier box should be used.
·
Where more than 3 barrier boxes are required in a building, they must be rack mounted using a
Barrier Box rack
mounting kit
.
·
A maximum of 16 barrier boxes can be used with any Phone module.
·
CAUTION: PHONE (POT) ports on the front of control units must not be used for extensions that are external to the
main building.
