Kenwood NX-5000 Series Common Function Reference page 246

11 EXTERNAL PORTS
11.2 D-sub 25-pin Connector
Mic Mute
Mic Mute is the port that is used to mute the microphone modulation line.
The Mic Line (Front Mic and MI2) is muted when the Mic Mute port goes low level. The Mic Line (Front Mic and MI2) is
unmuted when the Mic Mute port goes high level.
External Monitor
External Monitor is the port that is used to activate the Monitor function.
The Monitor function is enabled when the External Monitor port goes low level. The Monitor function is disabled when the
External Monitor port goes high level.
Note
If the External Monitor port is active while the Monitor function is enabled by pressing the Monitor key, the Monitor function
0
for the External Monitor port is enabled.
The enabled state of the Monitor function is not retained in the transceiver.
0
External Hook
External Hook is the port that is used to switch the state of the microphone hook in the same way as Local Mic Hook.
The microphone goes to the On-hook state when the External Hook port goes low level. The microphone goes to the Off-
hook state when the External Hook port goes high level.
Off-hook Decode, Off-hook Horn Alert, Off-hook Scan, Off-hook Connect, On-hook Disconnect, and Optional
Signaling are reset in the same manner as Local Mic Hook.
If both Local Mic Hook and External Hook ports are in the Off-hook state, the microphone goes to the Off-hook state. If either
port is in the On-hook state, the microphone goes to the On-hook state.
External Speaker
External Speaker is the port that is used to activate the External Speaker function.
If the External Speaker port goes low level, External Speaker is enabled regardless of the configuration of External
Speaker, or the configuration status of External Speaker by the External Speaker key.
If the External Speaker port goes high level, the configuration of External Speaker, or the configuration status of External
Speaker by the External Speaker key is restored.
Note
While the External Speaker port goes high level, the configuration of External Speaker cannot be switched by the
External Speaker and in Menu Mode.
Emergency
Emergency is the port that is used to activate the Emergency function.
The transceiver enters Emergency Mode when the Emergency port goes low level.
The transceiver behaves according to the configuration using KPG-D1/ D1N in Emergency Mode. Emergency Delay
Time needs to be configured for this port and used to avoid erroneously placing the transceiver in Emergency Mode.
Common FUNC (K, F)/Ver 2.20
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