Owner manual

18 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 13 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 unused 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:
• 2.2.1 HMS-4X Main Station rear panel:
Interface modules
• 13 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.
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HelixNet Partyline User Guide