Operation Guide
6. Select 2 Wire to perform 2-wire audio settings.
6.1 Connect the hub to a 2-wire device and set the corresponding cable
compensation and terminal resistance on the hub. Power on the 2-wire device
and turn OFF or disconnect its microphone to make sure that there is no other
audio transmission on the 2-wire link. Otherwise, the accuracy of auto-null
settings may be affected. After Auto Null is selected, auto-null settings for the
2-wire device will be performed automatically on the hub.
6.2 Select Cable Compen to check the 2-wire cable length and select the corre-
sponding compensation option according to the cable length.
6.3 Select Terminal Res to check whether the 2-wire device connected via the 2-wire
interface has terminal resistance. If it has, select OFF . Otherwise, select ON .
Cable Compen
50m
100m
150m
200m
Terminal Res
ON
OFF
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