MCS16 Installation Guide 1V1
Page 6 of 8
2.11) RS485
Pin Name Function
1 Microphone Input
2 Ground Common
3 B RS485 Data
4 A RS485 Data
5 12VDC 12V Supply Output 1000mA Max.
6 PTT Sw PTT Active Low.
3) Diagnostics
CAN1 Off: No local CAN devices in use
Green: All local CAN devices ok
Red: One or more local CAN devices faulty
CAN2 Off: Vehicle CAN not in use
Green: Vehicle CAN detected
Red: Vehicle CAN not detected
STANDBY Red: Device in use, full power mode
Amber: Device idle, ready for low power mode
Steady Green: Shutting down
Green Pulse: Standby / Low Power Mode
SIREN Off: Siren has not been configured in software
Slow Pulsing Green: Siren in in low power standby mode (Not enabled)
Fast Pulsing Green: Siren is internally powered and ready to operate
Green: Siren output is operating (speaker is sounding)
Red: Over-current Safety – Siren system disabled (reset required_
Amber: Low voltage dropout (the siren is disabled because supply is too low)
O/P As per MCS32
H/S State of any connected handset buttons
I/P As per MCS32
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