FSG 7016
4 Operation
November 2009 21
7
EXTERNAL ACCES-
SORY CONNECTOR
(cont'd)
Pin assignment:
A: Phone OUT 8 … 600 Ohms;
B: Common GND;
C: External MIC IN, 4 … 600 Ohms/0.35 … 10 mV;
D: DATA TX;
E: DATA RX;
F: External PTT key IN (against ground);
G: Microphone GND;
H: +12 Vdc, switched, OUT;
J: DATA RTS;
K: DATA CTS.
8
PTT KEY
:
The Push-To-Talk (PTT) key determines the operating
mode of the transceiver.
• When the PTT key is depressed, the transceiver will
operate in the transmit mode.
• When the PTT key is released, the transceiver will
operate in the receive mode.
9
Side TEST KEY
:
a) Temporary squelch override, combined with
b) Manual activation of optical and acoustical battery
status signal:
3-dots tone = fully charged battery
2-dots tone = approx. 50% discharged battery
1-dot tone = almost discharged battery
continuous tone = Warning (during transmit only)
= battery empty, no TX possible anymore.
10
LOUDSPEAKER
:
Two 16-ohm/300-mWatt internal loudspeakers in
parallel, which are operative in the receive mode. The
internal speakers are disabled when
• transceiver is operated in the transmit mode or
• an external microphone (headset, helmet, etc.) is
connected to the accessory socket.
11
MICROPHONE
:
An Electret-type microphone which is operative in the
transmit mode.
The internal microphone is disabled when
• the transceiver is operated in the receive mode, or
• when an external microphone is plugged to the
accessory socket
7
, or
• when the PTT key of a speaker/microphone is
pressed
12
BATTERY PACK
:
A rechargeable, detachable, high quality Ni-MH battery
pack, 12 Vdc/1,500 mAh. Water- and dustproof also
detached from radio. Protected by a 2 Amp self-
healing fuse and a temperature switch (≥ +84°C / ≥
183°F). Chargeable through bottom contacts (mate
DITTEL drop-in charger, A/N F10167).
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