User manual

6.0 REAR PANEL CONTROLS & CONNECTORS continued

11 MAINS INLET

IEC Mains connector. For correct wiring and operation refer to section 4.0.

12 REMOTE MUTE CONTROL AND AUX OUTPUTS

On this connector are available :

Mic mute controls for each channel seperately

Buzzer mute controls for each channel seperately

Mic mute control for all channels

Buzzer mute control for all channels

The unbalanced AUX signals

Ground (0Volts, pin 1 of each XLR)

+30 Volts power (each channel summed)

To activate a mute, connect the desired pin(s) of the D-25 connector (7-13) to ground (1, 14, 15 or 16).

The unbalanced AUX are available on pins 2 and 3, the signal is the preamplified AUX input signal taken after the

master volume controls (6), before it is send to the matrix.

Use high impedance loads only ! Minimum of 20 K ohms. Lower loads may disrubt the AUX signals to the intercom

lines.

Pin layout of the D-25 :

1 Ground (0V)

2 Unbalanced AUX signal AUX 2

3 Unbalanced AUX signal AUX 1

4 +30 Volts (maximum load of 1A !)

5 +30 Volts

6 + 9 Volts (maximum load of 50 mA !)

7 Mic mute all channels (connect to ground momentary to activate)

8 Mic mute channel F (connect to ground momentary to activate)

9 Mic mute channel E (connect to ground momentary to activate)

10 Mic mute channel D (connect to ground momentary to activate)

11 Mic mute channel C (connect to ground momentary to activate)

12 Mic mute channel B (connect to ground momentary to activate)

13 Mic mute channel A (connect to ground momentary to activate)

14 Ground (0V)

15 Ground (0V)

16 Ground (0V)

17 not used

18 not used

19 Buzer mute all channels (connect to ground as long as needed to activate)

20 Buzzer mute channel A (connect to ground as long as needed to activate)

21 Buzzer mute channel B (connect to ground as long as needed to activate)

22 Buzzer mute channel C (connect to ground as long as needed to activate)

23 Buzzer mute channel D (connect to ground as long as needed to activate)

24 Buzzer mute channel E (connect to ground as long as needed to activate)

26 Buzzer mute channel F (connect to ground as long as needed to activate)

! Please note that the +9 Volt supply is NOT shortcircuit protected !