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National Communications
Telephone line in
Accessory Device
TLM Relay Output is
Dry Contacts rated at
12V 1A maximum
+
-
Accessory Power Supply
(maximum 12V 1A)
Telephone line out
(to handset)
12V Power
Supply
CONNECTION WITH
CUSTOMER SUPPLIED
POWERED ACCESSORY
POWERED 3RD P
ARTY
CUST
OMER
ACCESSOR
Y