Nortel Networks M3110 - Manual (Page 351)

Appendix A: Meridian Modular Telephones Page 351 of 504
Telephones and Consoles Description, Installation, and Operation
Note 1: All terminals must be isolated from the input winding and each
terminal must be isolated from all other terminal windings. A separate
winding is required for each terminal, and grounds should not be
connected.
Note 2: The QUT1 closet power supply source is not compatible with
Meridian Modular Telephones.
The AC source should be rated at 29 V AC, 700 mA isolated. The DC source
should be rated at 42 V DC, 300 mA isolated, with current limiting output of
1 amp.
Figure 60
Closet power supply configuration
1
2
3
4
5
6
W BL
6-conductor
line cord
from telephone
To IDF
Tip (r)
Ring (g)
Closet Power Supply
(Shumway SBI 221-25 or equivalent)
Connects to an
isolated output
553-AAA0724