Wiring the System 3M Model D-2400
6

Configuration Worksheets

Use Configuration Worksheets 1 through 3 (located at the end of this document) to plan and record your system
configuration. You can record the system wire locations, wire color scheme, and program settings on the
worksheets. Store the worksheets in the inside cover of the Communications Controller using the service envelope
provided.

Wiring Call Stations

Call Station wiring consists of the following for a one-button, four-wire system:
• 2 Speaker wires.
• Speaker shield wire (used as Common for buttons).
• Button A.
Configuration Worksheet 1 shows how to connect the Call Stations to the proper Communications Controller ports.

Station Selectors

Wiring Station Selectors involves connecting a minimum of 7 wires: 3 audio wires and 4 power and
communications wires.
!
Important
The D-2400 System is powered by one power supply that provides power for the
Communications Controller and a maximum of three Station Selectors. An individual power
supply must be plugged into the rear of each Station Selector that exceeds the three Station
Selector limit.
Refer to Configuration Worksheets 2 and 3 to determine the specific wires and connections to be made.