User manual

Telco Module
Airlab from D&R Phone +31 294 418014, email: info@d-r.nl Page 24
6 TELCO MODULE
TRIM
The trim control adjusts the optimum side-tone suppression (R-balance). The trim needs
to be re-adjusted with every new installation.
TELCO SEND
This gain control adjusts outgoing levels coming from the main output or the SUB output.
LINE
The Line input switches the modules input from the internal hybrid to a female XLR on
the connector panel to eventually accept an external (digital) hybrid.
GAIN
This control adjusts incoming call levels.
LC/HC
Fixed low and high frequency roll off.
CONNECT
Indicates that the internal hybrid is active.
SUB
Assigns input signal to separate SUB master.
PROG(RAM)
Assigns input signal to main master busses.
ST(ereo) AUX
Transmit a signal to the aux. master pre or post fader. The channel ON switch also affects
the aux send.
PAN
Allows adjustment between the left and right channel outputs.
CUE
Pre-fade listening. Allows pre-fade listening of the input signal and allows communication
such as taking an incoming call with the fader closed. The CUE LED is also a ring indicator
for incoming calls. When this LED flashes the “call” can be taken by pushing the CUE
switch.
ON
Channel on/off switch. While in closed fader stand-by mode, i.e. when green LED is off
incoming calls can be connected by pressing the "ON" switch.
FADER
Channel VCA volume-control adjusts overall channel level.