ADS Environmental Services ADS TRITON+ QR 775027 A3 - Manual (Page 48)

System Overview 2-11
Power regulator dome with IS regulator board
The user receives a warning when the internal 12-volt IS battery
pack drops below a specified threshold (ADS recommends 7.5
volts).
External Power
The TRITON+ also can receive power from an external AC or DC
source through an external power and communications unit
(ExPAC, ADS p/n 8000-0377), external Modbus interface unit
(XBUS, ADS p/n 8000-0427), or external input/output device
(XIO, ADS p/n 8000-0400) located outside the manhole near the
power source. These units regulate the power coming to the
monitor and can provide Modbus (ExPAC or XBUS) and analog
and digital input and output interfaces (XIO) between the monitor
and third-party equipment. The XBUS enclosure includes an
ExPAC and power supply. The XIO enclosure includes an ExPAC,
power supply, I/O module, and I/O interface terminals.