Operating instructions

TransTel Model TD-824-I Digital Telephone System - General Description - Installation - Programming Forms Manual
Page 34 Version 1.3b October 2005
Includes all versions through G1-a20x
Analog Door Phone Connection
 One Door phone may be connected to the
TD-824 system and only with SLC-8 cards..
 A cable cover is provided with the KSU. Door
phone cable can enter from either the top or
bottom as desired. Remove one or both ends
of the cover as required and route the door
phone cable through the hole. Terminate the
door phone wires with the connectors that are
provided. The Door phone will connect to the
KSU as shown on the main panel (above) on
connector locations 34 (Needs TD-SLC
installed).
 Connect Tip terminal with GRN terminal
(screws) of the modular jack, Ring with RED.
 No polarity on Tip and Ring.
 2-conductor wiring is required for Door phone.
Doorphone wiring is on pin 1 and pin 4 of
the connector.
 Adjust the DIP selector on the main panel to
Door Phone.