: Local Communications USB port
DC POWER: Green LED lights when the unit is powered and turned on.
MINOR ALARM LED: Yellow LED lights when a Minor Alarm occurs.
MAJOR ALARM LED: Red LED lights when a Major Alarm occurs.
COMMUNICATION: Blue LED lights when unit communicates externally.
USER ONLINE: Blue LED lights when a user is connected to the unit.
ACTIVITY: Blue LED blinks when the unit is working properly.
Button: Allows the user to switch to Local mode.
Indicator: Red LED blinks when the unit is in Local Mode.
NOTE: If MAJOR ALARM LED is blinking, the unit has lost communications with one of its Modbus slaves.
1: XLR4 connector for 12 Vdc input power
2: 3 A fuse
3: Ground screw terminal, for lightning protection
4: Power Fail (PF) Connector for a 9 Vdc wall transformer, to monitor main site power failures
5a: J1 RELAYS : DB 25-pin relays connector
5b: J2 METERING/STATUS : DB 25-pin Metering and Status inputs connector
6: Audio monitoring input for monitoring over phone line with internal modem
7: RJ-45 Ethernet jack for IP connection to the outside world through the site LAN/WAN or the Internet
8: RJ-11 telephone line jack, for the optional internal modem
9: USB host port, for data logging or other USB devices