Owner manual

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.

HelixNet Partyline User Guide