Clear-Com HLI-FBS - Manual (Page 142)

Appendix D: Troubleshooting
Issue Solution
Why are the Talk keys flashing
periodically? Flashing Talk keys may indicate a fault in the cable.
Check the cable for short-circuit conditions and replace if
necessary.
The Call functionality on my
analog beltpack is no longer
working. HelixNet Partyline operates at different voltage levels than
analog two-wire partyline systems.
The analog beltpack may have been damaged if it was
connected to a HelixNet Main Station partyline port.
Contact Clear-Com for repair options.
I cannot pass audio to wired /
wireless intercom equipment over
the Two-wire module. Two-wire option modules require an external power supply.
See 9 Connecting to Other
Intercom Systems.
Why do I hear an echo when
interfacing via a two-wire audio
port? Run auto-nulling.
Ensure that all Talk keys in the system are unlatched.
Echo occurs even after Two wire
module has been auto-nulled. Check to ensure all open Talk keys are not latched and re-
null.
There is no audio or only partial
audio (send or receive, but not
both) between other audio
systems / sources connected over
four-wire. Check the cable used to connect the equipment.
HelixNet to Eclipse four-wire connections only require a
standard CAT cable, whereas other four-wire connections (to
Tempest, CellCom / FreeSpeak, and other systems) require
an audio crossover cable. See:
• 2.2.1HMS-4X Main Station rear panel: Interface
modules
• 9 Connecting to Other
Intercom Systems
Line 1 (or Line 2) LED is blinking
red. There is a short-circuit somewhere on that Powerline. Unplug
everything from that Powerline and add cables and Beltpacks
one at a time until you find the short-circuit.
140 HelixNet Partyline User Guide