Operating instructions

TransTel Model TD-824-I Digital Telephone System - General Description - Installation - Programming Forms Manual
Page 30 Version 1.3b October 2005
Includes all versions through G1-a20x
System Ground
It is strongly recommended that the system be grounded by connecting a heavy, insulated copper wire (e.g.,
14AWG or larger) between the grounding bolt on the right-lower side of the cabinet and an earth ground.
Do not connect the grounding wire of the KSU to a computer, telex, or any other external device.
KSU Connecting (Main) Panel Layout
The following illustration should be used as a reference when connecting equipment to the TD-824i KSU.
Refer to the wiring diagram located on the inside of the cable cover for all connections
Connecting Stations
The station cabling for the TD-824i should be a home run from the jack to the telephone room. The termination
should be at conventional 66 type connecting blocks or directly to the provided station connectors. One pair twisted
wiring is required for each station location. Attention to proper cabling will help ensure a successful installation and
minimize service calls after installation. Some guidelines for running station cable are as follows:
• Avoid running cable parallel to fluorescent light fixtures or electrical lines not in conduit. If these obstacles are
unavoidable, run the cable at right angles across them.
• Do Not run station cable inside conduit already occupied by electrical wiring.
• Do Not run station cable near equipment with electric motors or strong magnetic fields.
• Do not place station cable on the ground where it can be stepped on or rolled over by office furniture or office
equipment.
Digital Key Telephone – DK-1D, DK-1S, DK-1B, DK2, DK3-D, DK3-B
 A cable cover is provided with the KSU. Station cables can enter from either the top or bottom as desired.
Remove one or both ends of the cover as required and route the station cable through the hole. Terminate the
station wires with the connectors that are provided. The stations will connect to the KSU as shown on the main
panel (above) on connector locations.
 Connect Tip terminal with GRN terminal (screws) of the modular jack, Ring with RED.
 There is no polarity requirement on Tip and Ring.
 Single Pair (2-conductor) wiring is required for all DK series Digital Key Telephones.