Yaesu FT-710 Operation Manual page 12

Rear Panel
TUNER
This 8-pin output
j a c k i s u s e d f o r
connection to the
F C - 4 0 E x t e r n a l
Automatic Antenna
TX GND
Tuner.
ANT
Connect the main antenna here, using type-M (PL-
259) connectors and coaxial feed lines. The internal
antenna tuner affects only the antenna connected
here, and only during transmission.
GND
Use this terminal to connect the transceiver to a
good earth ground, for safety and optimal perfor-
mance. Use a large diameter, short braided cable
to make ground connections.
EXT SPKR
This 3.5-mm, 2-contact, jack provides audio output
for an external loudspeaker. The impedance at the
jack is 4-8 Ohms. The
volume varies accord-
ing to the setting of the
front panel [AF] knob.
Inserting a plug into the jack alters the inter-
nal loudspeaker configuration.
REM/ALC
By plugging the FH-2 Remote Control Keypad into
this jack, direct access to the FT-710 CPU is pro-
vided for control functions of the contest memory
keying, and also frequency and function control.
KEY
This 3.5-mm, 3-contact jack accepts a CW key or
keyer paddle. A two-contact plug cannot be used
in this jack. Key-up voltage is +5.0 V DC, and key-
down current is 3 mA.
KEY
NC
When connecting a single straight key
10
RESET OUT
TX INH TUNER SENSE
RX D GND
+13V OUT
TX D
SIGNAL GND
GND
DOT
DASH
COMMON
When connecting an electronic keyer paddle
RTTY/DATA
This 6-pin input/output jack accepts AFSK input
from a Terminal Node
Controller (TNC); it also
provides fixed level
receiver audio output,
and FSK keying line.
Cooling FAN
USB
Connecting to a computer from this jack with a
commercially available USB cable allows remote
control by CAT commands from a computer. The
jack can also be used for input and output of audio
signals and transmitter control. A USB driver is re-
quired for remote control from a computer. Down-
load the driver from the Yaesu website (http://www.
yaesu.com).
USB Jack
Connect a USB A type keyboard or mouse. They
can be used to select items on the screen or to en-
ter characters.
EXT-DISPLAY
DVI-D connector for connecting an external moni-
tor.
When using an external monitor, set the setting
menu item "EXT DISPLAY" to "ON".
Connect a monitor that supports 800 x 480
resolution or 800 x 600 resolution.
DC IN
This is the DC power supply connection for the
transceiver.
Use the supplied DC cable
to connect directly to a DC
power supply, which must be
capable of supplying at least
25 A @13.8 VDC.
DATA IN GND
PTT SHIFT
DATA OUT SQL