Installation
QS4 Technical Reference Manual 2.15
Terminal No. Name Description
TB1–15 RS232 RTS Not used
TB1–16 RS232 RX
Connects to the data transmit (TX) terminal on a peripheral
device.
TB1–17 RS232 TX
Connects to the receive data (RX) terminal on a peripheral
device.
TB1–18 RS232 COM Connects to the common ground (COM) terminal on a
peripheral device.
TB2–1 BATT PWR + Connects to the positive terminal on the standby battery.
TB2–2 BATT PWR – Connects to the negative terminal on the standby battery.
TB2–3 NC Not used.
TB3–1 AUX1 Provides 24 Vdc, FWR power to auxiliary devices.
Note: AUX1, AUX2, and AUX3 can not be used to power
remote annunciators
TB3–2 AUX2 Provides 24 Vdc, FWR power to auxiliary devices.
TB3–3 COM Negative reference for AUX1 and AUX2 outputs.
TB3–4 AUX3 Provides 24 Vdc, FWR power to auxiliary devices.
TB3–5 COM Negative reference for AUX3 output.
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