Muting Function; Manual Mute - Toa BG-2240D-AM Operating Instructions Manual

7. MUTING FUNCTION

Manual mute and Automatic mute are available for the muting function.
Manual mute is a function to mute the MIC, LINE 1/TEL, LINE 2, LINE 3 and/or MODULE input placed in Mute
Receive mode when the manual mute terminal is short-circuited.
Automatic mute is an audio-signal activated muting function to automatically mute the MIC, LINE 1/TEL, LINE
2, LINE 3 and/or MODULE input placed in Mute Receive mode when audio signals enter the MIC, LINE
1/TEL, or MODULE input placed in Mute Send mode.
Neither manual mute nor Automatic mute works on the MOH output.

7.1. Manual Mute

Step 1. Set the inputs to be muted (Mute Receive inputs) with the Function switch B.
Shift the DIP switches 1 to 5 to ON position to place each corresponding input in Mute Receive
(muted) mode as follows.
• DIP switch 1: MIC input
• DIP switch 2: LINE 1/TEL input
• DIP switch 3: LINE 2 input
• DIP switch 4: LINE 3 input
• DIP switch 5: MODULE input
Note
Avoid assigning both Mute Receive and Mute Send functions to the same input.
Step 2. Close between the Manual mute (+) and (–) terminals.
The Inputs set for Mute Receive in Step 1 are muted.
Step 3. Open between these terminals.
The signal being muted returns gradually to its original level in about 3 to 8 seconds.
Note: This function is active regardless of the Automatic mute ON/OFF setting using the Function switch A.
12
Function switch B
TOTAL IMPEDANCE 21
Function switch A