User Manual

Maintenance a n d Troubleshooting 10-31
19. Pla ce the monit or upright on the ground besid e the manhole,
and reconnect the antenna cable to the ANTENNA port on the
monitor.
20. (applicable only to externally-powered monitors) Reconnect
the external p o wer/communications cable to the COMM +
EXT PWR port on the monitor. Restore power to the monitor
from the external source.
21. Establish communication with the monitor remotely to verify
communication.
22. Rewrap r ubber stretch tape around the entire cable connection
between the antenna and ANTENNA port, extending 1 to 2
inches (25 to 50 mm) onto the cable beyond the connection.
When applicable, rewrap the connection between the external
power/communication cable and the COMM + EXT PWR
port in the same manner.
23. Reconnect the senso r ( s) to the approp r iate po rts(s) (i.e.,
Channel 1 and/or Channel 2) on the monit or.
Interpreting the Diagnos t ic LED Codes on the
ExPAC
The ExPAC includes LED lights that provide d ia gnostic insight into
the current activities involving communications and powe r that
pertain to the ExP AC and overall system. The following image and
table includes brief descriptions of each diagnostic LED on the
ExPAC: