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6. Panel Microphone: The panel mounted Microphone.
7. Diver Pre-amp: Powered Mic on/off switch with LED.
8. Panel Mounted Speaker: The panel mounted speaker.
9. Push to Talk: The push to talk button toggles the panel mounted mi-
crophone.
10. REM: Remote Tender Headset PTT connection.
11. Line In: The Line In input allows for external audio playback to the
divers, such as a music or another MK-III.
12. Remote Speaker: Remote speaker receptacles. Can be used to connect
a two-pin unpowered speaker.
13. Line Out: The Line Out input can be used to connect recording equip-
ment, allowing recording at the line level, but not at the speaker level.
And to connect another MK-III.
14. 12 Volts Power/CHG: The connector for an external 12VDC power
supply and for charging the battery.
15. Battery Level: Indicator for the charge level of the battery.
16. Power: The power indicator. This light indicates if the unit is powered
on.
17. Power Switch: A two position toggle switch for turning on and off the
power to the MK-III
2.5
MK-III CASE MAP
1. Case Latches: The stainless-steel latches on either side of the case are
used to close and seal the MK-III case.
506279-000
Fig. 2
8
REV. A
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