Installing IP500/IP500 V2 Page 398
15-601042 Issue 28g (11 October 2013)IP Office 9.0
10.15.13 PF Port
These ports are found on the rear of the IP400 Analog Trunk expansion module. They are analog extension ports that can
be used in conjunction with analog loop-start trunks during power failure to the IP Office system.
Any phones connected to these ports should be clearly labeled as power fail extensions in accordance with the
appropriate national and local regulatory requirements.
Pin 2 is internally connected to pin 5 via a ringer capacitor.
Pin 6 is internally connected to pin 5 via a ringer capacitor.
· Minimum Wire Size: AWG 26.
· Maximum Cable Length:
· AWG26: 500m / 1640'.
· AWG24, AWG22: 1000m / 3280'.
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