3M Model D-2400

Wiring the System

Wiring the System

Depending on distance use twisted pair, 14-22 AWG audio cable when wiring Convenience Store Intercom System, Model D-2400, components. Figure 5 shows an overview of the cable types and number of connectors required for each unit. Table 1 shows wire gauge required for different distances between components.

Note:

The RS485 cable carries DC power for the Station Selectors, requiring a larger gauge wire.

Figure 5. Cable and Connection Requirements

All Audio Wiring

 

Distance Between

Wire Gauge

Components

22

Up to-309 feet

20

310-493 feet

18

494-783 feet

16

784-1245 feet

14

1246-1980 feet

RS 485 Cable (only)

 

Distance Between

Wire Gauge

Components

22

Up to 62 feet

20

63-99 feet

18

100-157 feet

16

158-249 feet

14

250-396 feet

Table 1. Wire Size Requirements

5

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3M D-2400 installation instructions Wiring the System