Clear-Com HLI-FBS - Manual (Page 60)

2) From the second menu, select one of the two available ports on the two-wire
interface module:
Slot 1/Port A 2W
Slot 1/Port B 2W
Note: In this example, the two-wire module has been fitted to slot 1 in the
expansion bay. The expansion bay contains three slots.
2W = Two-wire.
a) To associate one of the four available channels (or to disable channels
associations) with the selected port:
From the third menu (third display screen), select Channel Assign.
b) From the fourth menu, select one of the following:
• Disabled (default)
• Channel A
• Channel B
• Channel C
• Channel D
Note: When linking is enabled, there will be more than four channels.
c) To confirm the selected setting, press the rotary control.
3) The Program Output allows a program feed associated with the channel assigned to
the four wire port to either be delivered to that 4 wire port alongside the other channel
audio or not. To set the Program Output:
a) From the third menu, select Program Output.
b) From the fourth menu, select one of the following:
• Unmute (default)
• Mute
4) To confirm the selected setting, press the rotary control.
5) Auto-nulling helps to reduce echo while talking on a two-wire audio system. To start
Auto-nulling on the selected port:
a) From the third menu, select Auto-Nulling.
b) From the fourth menu, select Start.
Note: Auto-nulling is only applicable to two-wire audio. All Talk routes/keys must
be disabled before Auto-nulling can commence. If an echo persists, ensure
all Talk routes are disabled and re-null the system.
60 HelixNet Partyline User Guide