Operation Manual

EF1210 U

SER

ANUAL

For this step, you will need a live connection to a remote conferencing site (or two

sites if you are configuring the EF1210 for two AEC reference inputs).

i. Select Reference input source to calibrate. Choose either Reference A (AEC A)

or Reference B (AEC B).

ii. Establish live connection to remote site(s) and have the remote party talk nor-

mally. Have the person at the remote end of the conferencing link sit at a normal

distance from a microphone and talk at a normal level while you observe the sig-

nal activity on the R

EMOTE

IGNAL

EVEL

ETER

iii. Adjust the Reference Input Gain until the first yellow LED (0 dB) on the

EMOTE

ETER

of the EF1210 front panel is flickering regularly with remote

speech and the second yellow LED (+3 dB) is flickering occasionally.

iv. If you are calibrating two AEC Reference Inputs, repeat these steps, choosing the

Figure 25. Step 3: Calibrating AEC Reference Inputs

Note.

If you have an EF200 Phone Add in your system, you can easily

establish a remote connection using the EFPanel Control Software

by choosing the EF200 device from the Device List in the Toolbar

and dialing to a remote location with the Dialer (the EF200 must

be connected to the EF1210 by the ASPI Bus as well as the remote

input and output — see the EF1210 User Manual for details).