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8. Emergency input level : this is the only level control on the emergency input. The emergency signal
bypasses all possible level controls in the MA246 unit.
9. Chime level: turn this knob to activate the two tone chime. The chime is activated by the priority
switches from mic/line 1 – 4. Please note that the emergency input switch or vox circuitry does not
activate the chime.
10. Paging group 1 dipswitches : click the dipswitches to the on position for zone 1 to 6 to enable zone 1
to 6 zone group paging with mic 2-4. Connect the GND and PG1 (paging group) connector on mic 2,
3 or 4 to the microphone paging switch. This will enable zone group 1 paging (e.g.using our MICPAT-2
unit). The dipswitch settings are valid for mic 2 – 4 inputs only. Mic 1 is a higher priority mic and
overrides these settings.
11. Paging group 2 dipswitches : click the dipswitches to the on position for zone 1 to 6 to enable zone 1
to 6 zone group paging with mic 2-4. Connect the GND and PG2 (paging group) connector on mic 2,
3 or 4 to the microphone paging switch. This will enable zone group 2 paging (e.g.using our MICPAT-2
unit). The dipswitch settings are valid for mic 2 – 4 inputs only. Mic 1 is a higher priority mic and
overrides these settings.
12. Selective paging connector on RJ45: connect the MICPAT-6 RJ45 connector to this connector for
selective zone paging. This is NOT a LAN or computer network connector, so NEVER connect this to
any other network.
Connection details:
Orange white cable: zone 1 – pin 1
Orange cable: zone 2 – pin 2
Green white cable: zone 3 – pin 3
Blue cable: zone 4 – pin 4
Blue white cable: zone 5 – pin 5
Green cable: zone 6 – pin 6
Brown white cable: GND – pin 7
Brown cable: +24V – pin 8
13. Mic 1 level, tone adjustment: adjust the mic 1 level and tone here. For use with MICPAT-6,
set the mic/line push button to the line position.
14. Mic/line 2: this mic has lower priority than mic 1; details, see below.
15. Mic/line 3: this mic has lower priority than mic 2; details, see below.
16. Mic/line 4: this mic has lower priority than mic 3; details, see below.
17. Fan section: the internal cooling fan operates when the amp temperature rises above 55°C.
Keep this area clear and clean.
Note: the fan is a mechanical device and the area around it needs te be kept clean at all times.
If the unit is used in a dusty environment, regularly clean out the entire amplifier with clean and
dry compressed air. Dust may collect inside the unit and prevent proper cooling, causing overheating,
eventually causing malfunction. Replace the fan if necessary. Failures caused by improper
maintenance are not covered by warranty.
18. Mains socket: connect the included mains power cord here. The mains fuse is also located inside the
socket. Replace it if necessary with an identical fuse only.
19. Backup power input: connect the 24 VDC backup power here. In case the mains voltage is
interrupted, the backup power will automatically keep the unit operational. Please note that maximum
output power of the internal power amp is limited when operating on the emergency supply.
20. Priority output: 24 VDC is present on this connector when priority is activated. You can use the 24
VDC to switch local volume controllers relays. Warning, maximum 0.6 A !!! Do not exceed maximum
output current, do not short circuit this output and do not apply any foreign voltage to this output !
