Avaya B5800 User Manual Page 76

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Connection type Protection device type Requirement
External output switch ITWLinx towerMAX SCL/8
(This device was previously
referred to as the Avaya
146G.)
Connections from an Ext O/P
port to an external relay
device must be via a surge
protector.
The towerMAX range of devices are supplied by ITWLinx (http://www.itwlinx.com).
DS phone IROB installation
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 B5800 Branch
Gateway DS ports, the supported device supplied by ITWLinx is a towerMAX DS/2 module.
This IROB device was previously referred to 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 control unit and the DS modules must be connected to a protective ground
using 18AWG wire with a green and yellow sleeve.
Typically the IROBs 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 connections. 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
Hardware and software installation
76 Implementing B5800 Branch Gateway for a CS 1000 Configuration October 2012
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