MUTE (18)
Channels can be muted individually by shorting this terminal to ground. It provides approximately 45 dB of attenuation.
figure 1 Mute
STATUS OUTPUT (19)
The status is a DC logic output that is low (0 volts) when the channel is active and high (3.8 volts) when the channel is not active. This DC voltage can be used to key video cameras or trigger key lights on active microphones.
LOOP (Channels 1 and 2) (20)
This is a signal loop that allows an external device such as an EQ to be inserted into the signal path of the first two channels. When used without external processing these loops are hardwired.
figure 2 Loop
CEQ 280
IN OUT
MUTEBUS (21)
The Mutebus is a control port that when shorted to ground will mute all channels that are assigned to the mutebus (approximately 45 dB). The channels to be muted must be attached to the mutebus using the internal switch marked OFF/MBUS. (See number 7).
figure 3 Mutebus
7
