7
7
8
9
This figure represents the BG-130.
14
15
17 18
19
20
16
21
10
11
12
13
[Rear]
7. AC power cord
Connect this cord to an AC wall outlet.
8. AC outlet (Unswitched)
Supplies power of up to 500 W to auxiliary
equipment.
9. Output terminals [OUTPUT]
Connect to speakers.
10. MOH output terminals [MOH OUT]
(transformer-isolated output)
Connect to the telephone system.
11. Muting terminals [MUTE]
Shorting between this terminal and the ground
terminal mutes signals input to the muting circuit.
12. Program input [PROGRAM]
Electrically-balanced input, 10 k
Ω
.
13. Mic/Tel input [MIC/TEL]
Transformer-isolated input (Mic: 600
Ω
, Tel: 10
k
Ω
).
14. MOH volume control [MOH]
Adjusts the gain of the MOH amplifier.
15. Bass control [BASS]
Increases the low frequency response when
turned clockwise, and decreases the response
when turned counter-clockwise. The center
position provides the flat response.
16. Treble control [TREBLE]
Increases the high frequency response when
turned clockwise, and decreases the response
when turned counter-clockwise. The center
position provides the flat response.
17. Sensitivity control [SENSE]
Adjusts the sensitivity of the muting circuit.
18. Mic/Tel selector switch [MIC, TEL]
Select either position depending on the type of
equipment connected to the Mic/Tel input.
19. AUX volume control [AUX]
Adjusts the gain of the AUX input. Clockwise
rotation increases the gain.
20. AUX input (dual RCA phone jack)
10 k
Ω
, unbalanced.
21. Breaker (for AC outlet)
Cuts the AC power when excessive current
flows. Push the reset button after removing the
fault.
