Front Panel Feature, Adjusting the Trim | Extron electronic BUC 202

Front Panel Feature

BUC 202

APower LED — The green lights when the BUC 202 is receiving power.

The BUC 202 can be wired in four different configurations:

•Balanced input to unbalanced output

•Unbalanced input to balanced output

•Balanced input to balanced output

•Unbalanced input to unbalanced output Follow the steps below to adjust the trim:

1.Disconnect power from all devices.

2.Wire the BUC 202 for either balanced or unbalanced stereo or dual mono audio input.

3.Wire the BUC 202 for either balanced or unbalanced audio output.

4.Set the trim adjustment:

a.Determine the input and output signal types (balanced or unbalanced) and whether it is consumer or professional audio.

Find the trim adjusment setting according to the table below.

	Output	Balanced		Unbalanced
	Output
Input		Consumer1	Professional2	Consumer1	Professional2
Balanced	Consumer1	0 dB	12 dB	6 dB	18 dB
Balanced	Professional2	-12 dB	0 dB	-6 dB	6 dB
Unbalanced	Consumer1	0 dB	12 dB	6 dB	18 dB
Unbalanced	Professional2	-12 dB	0 dB	-6 dB	6 dB
	Professional2	-12 dB	0 dB	-6 dB	6 dB

1 Consumer line level is -10 dBV ≈ -8 dBu. 2 Professional line level is +4 dBu.

b.Use a small screwdriver to turn the appropriate trim adjustment switch to the desired setting.

5.Reconnect power to all devices to test the audio.

6.If necessary, readjust the trim.

BUC 202 User Guide • Setup and Operation