This figure represents the BG-130.
[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 kΩ.
13. Mic/Tel input [MIC/TEL]
Transformer-isolated input (Mic: 600 Ω, Tel: 10
kΩ).
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 kΩ, unbalanced.
21. Breaker (for AC outlet)
Cuts the AC power when excessive current
flows. Push the reset button after removing the
fault.
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