P/N 3100007 • REV 07 • ISS 02JUL12
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Figure 2: Wiring to terminal block TB1*
(1) To next signal or end-of-line resistor
(2) From control panel signal circuit
(3) Terminal block TB1
(4) Main
board
* Polarity is reversed in supervisory or standby condition.
Figure 3: PC board locations
(1) Input board jumpers (factory installed)
(2) Input
board
(3) Programming switch SW4 (on other side)
(4) Main
board
(5) Potentiometer for volume adjustment
(6) Processor
board