Avaya IP Office Phone Manual Do Utilizador

Installation of telephone and/or other standard (tip/ring) devices that are external to the 
building housing the Avaya IP Office or in another building require In-Range-Out-Of-
Building (IROB) protectors to protect the control unit and device from electrical surges. 
These must be fitted as follows: 
-  System telephone   :  two IROB protectors 
-  Standard telephone : two IROB protectors plus one carbon block protector. 

Primary protection must be provided at the point where the cable enters the building. This 
should be three point protection (tip, ring and ground). Typically this would be gas tube 
protection provided by the local telephone company. The ground wire must be thick 
enough to handle all the lines being affected by indirect strike at the same time. 
CAUTION:  All cabling between buildings must not be exposed. E.g. cabling between 

buildings must be carried in suitably earthed ducting; ideally underground. 

Three versions of IROBs are available as follows :  
-  146C - Trunks - SAP code 407228923  
-  146E - TDL - SAP code 407568161 
-  IP400 Phone Barrier Box - SAP code 700293897 

Installation of a Contact Closure Adjunct controlled device outside the building requires a 
146G Surge Protector – SCL/8 to protect the control unit from electrical surges. 
Install the 146C and 146E IROBs as per the instructions supplied with the IROBs. 

Avaya IP400 Phone Barrier Boxes must only be used in conjunction with UL Listed Avaya 
IP400 Phone 8/16/30 modules. 

Where more than three Avaya IP400 Phone Barrier boxes are to be used they must be 
rack mounted (see page 37). For non-rack mounting of the Avaya IP400 Phone Barrier 
Box, proceed  as follows: 

 

 

Notes:  1.  The following wires must be  kept apart, e.g. not routed in the same bundle: 
 

-  Earth lead from the barrier box to the IP400 Phone 8/16/30. 

 

-  Internal wires, e.g. wires going directly to the IP400 Phone 8/16/30. 

 

-  Wires from external telephone going directly to the barrier box(es). 

 

2.  The Avaya IP400 Phone Barrier Box will not connect the ringing capacitor in 

the UK, hence a Master socket is required. 

 

CAUTIONS:  1.  The analogue ports on the front of the IP403 must not be used for lines 

external to the building. 

 

2.  The Avaya IP400 Phone Barrier Box must not be connected to the 

analogue trunk  lines