System Capacity; Intercom Channels; Program Sources - RTS Two-Wire Intercom Series User Manual

Source assign panel

Table of Contents

Installation and Operation

System Capacity

To determine power supply loading, add together all of the user stations that will be powered from a particular buss (less

stations which are self-powered).

NOTE:

The SAP612 distributes DC power, but uses no power itself. Refer to the power supply manual for power supply

capacity information.

Connect intercom channels to the OUTPUTS 1-12 jacks on the rear panel. Each connector accommodates a pair of TW

channels wired in the standard TW 2-wire configuration as follows:

Pin 1 Common (low side of line)

Pin 2 Channel 1

Pin 3 Channel 2

Shielded cable is recommended for user stations interconnections. Connect shields to circuit common, but do not tie shields to

chassis, earth or connector shell ground.

Program Input 1 (PGM1) is assigned to buss 5, program 2 is assigned to buss 6. The program inputs are balanced and isolated.

Connect program sources using 1/4-inch stereo phone plugs wired as follows:

Tip Program High

Ring Program Low

Sleeve Common

Connecting a Non-TW Power Source

FIGURE 3.

Table of Contents

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Sap612