Issue
A Network 8000 GCM is outfitted with a dial-out modem. It sends alarms via the modem to a remotely located computer running SIGNAL. The same modem handles dial-in connections from the SIGNAL computer.
How does SIGNAL handle receiving alarms while it is connected and viewing dynamic data?
Product Line
TAC IA Series
Environment
SIGNAL and Network 8000 / DMS
Cause
Lack of more than one phone line.
Resolution
- When SIGNAL is viewing real-time data via the MONITOR program, it will not display alarms (or exceptions).
- Once the MONITOR program is stopped, alarms are allowed to pass through from the remote GCM or DMS panel to SIGNAL's alarm handler.
- To avoid missing critical alarms, it would be best to install two modem on the GCM or DMS and two modems on the SIGNAL computer.
- Once modem will be dedicated for dial-in (to view real-time data or modify schedules) and the other for receiving alarms/exceptions.
