FT-2600M O
PERATING
M
ANUAL
7
(20) ANT Coaxial Socket
Connect a resonant 144-MHz antenna to this type-M (SO-239) socket using 50-
W
coaxial
cable and a type-M (PL-259) plug.
(21) 13.8V DC Cable Pigtail w/Fuse
This is the power supply connection for the transceiver. Use the supplied DC cable to
connect this pigtail to the car battery or other DC power supply capable of at least 10
Amperes (continuous duty). Make certain that the red lead connects to the positive side of
the supply. The fuse in the DC Cable is rated at 15-A, fast-blow.
(22) EXP SP Jack
This 2-contact 3.5-mm phone jack provides receiver audio output for an optional external
speaker. The audio impedance is 4 Ohms, and the level varies according to the setting of
the front panel’s
VOL
control. Inserting a plug into this jack disables audio from the
transceiver’s internal speaker.
(23) DSUB 9-Pin Data Connector
External Transmit Audio input, PTT (
P
ush
T
o
T
alk), Squelch, and Receive Audio output
signals may be obtained from this connector for use with accessories such as a data trans-
mission/reception modem, etc.
(20)
(22)
(21)
(23)
Rear Panel Connectors
Pin
Label
Notes
1
Squelch Signal Output
Carrier In: Closed (Open Collector)
Maximum voltage 16 V, Max. sink current 10 mA
2
Packet Rx Data Output (9600 bps) Typ. output level 600 mV/10 k
W
3
Packet Tx Data Input (9600 bps)
Typ. input level 800 mV/600
W
, Max. input 1.2 V
4
Packet Rx Data Output (1200 bps) Typ. output level 200 mV/600
W
5
Gr ound
-
6
Not Used
-
7
External PTT Signal Input
GND: TX, Open: RX
8
DC Output
Switched and regulated DC 5.0 V output for supplying power to
an accessory. Maximum output current is 50 mA
9
Packet Tx Data Input (1200 bps)
Typ. input level 40 mV/600
W
Pin 9
Pin 1
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