Typical System Layout
24/6VA
GROUND
NEUTRAL
120vac HOT
24/6VA
24/6VA
GROUND
GROUND
NEUTRAL
NEUTRAL
120vac HOT
120vac HOT
1 Wire Pair Per Phone
22AWG or 24AWG
Max. distance using
22AWG is 112,500' and
using 24AWG is 70,300'
Distribution Module
Power Supply
with UPS
120 Volt Power
Up to 16 Phones
Connection to
Command
(One Wire Pair Connection)
UPS Control Port
Center
Larger Systems Will Require
Addtional Pairs
120 Volt Power Connection
to Incoming 120 Volt Power
Telco Lines
Page 4
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