Out Of Building Telephone Installations - Avaya IP401 Installation Manual

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: 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 Rack Mounting Barrier
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 boxes.
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 analog 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 analog trunk lines
Installation Manual
IP Office 2.1
Boxes). For non-rack mounting of the Avaya IP400 Phone Barrier Box,
40DHB0002USCL Issue 10c (11th May 2004)
Preparing for Installation
Page 45