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Page 30 - Out of Building Telephone Installations
Out of Building Telephone Installations
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
Standard telephone :
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
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 31). 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
CAUTIONS: 1. The analogue ports on the front of the IP403 must not be used
Page 30 - Reference Section
38DHB0002UKGA Issue 1 (12/05/2004)
:
two IROB protectors
two IROB protectors plus one carbon block protector.
between buildings must be carried in suitably earthed ducting; ideally
underground.
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.
for lines external to the building.
2. The Avaya IP400 Phone Barrier Box must not be connected to
the analogue trunk lines
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