Partyline: How does the RS703 / RS603 call signalling work when connected to a MS702
The RS-603-TW and RS-703-TW beltpacks units work in the same way
They provide RTS call signalling on channel A
They provide Clear-Com call signalling on channel B
They cannot provide Clear-Com call signalling on both channels
RS-703 connected to a MS-702 via the TWC-701 Active Interface
Pin Out
Pin 1 = GND
Pin 2 = Supply Voltage 28VDC/Audio Channel A with RTS Call Light
Pin 3 = Audio Channel B with CC Call Light
* When you connect a PL system in the following manner RS703 <> TWC-701 <> MS-702: Then the MS-702 will only receive call signal from the RS-703 on channel B as the RS703 channel A is set to RTS mode and it is not received by the MS-702 unit.
If you connect a RS-703 to a MS-702 directly (Without the TWC-701 Active Interface)
Pin Out
Pin 1 = GND
Pin 2 = Supply Voltage ONLY
Pin 3 = Audio Channel B
RS-703 directly connected to the MS-702, the RS-703 will act as a Single Channel BP (using only Channel B).
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