Yaesu FTDX101D Operation Manual page 15

RTTY/DATA
This 6-pin input/output jack accepts AFSK input
from a Terminal Node Controller (TNC); it also pro-
vides fixed level receiver audio output, and FSK
keying line.
SQL
SHIFT
GND
METER
This 3.5-mm jack is to connect an external meter.
SIGNAL （SUB）
SIGNAL （MAIN） GND
EXT ALC
This RCA input jack accepts negative-going exter-
nal ALC (Automatic Level Control) voltage from a
linear amplifier to prevent over-excitation by the
transceiver. Acceptable input voltage range is 0 to
-4 VDC.
USB
Connecting to a computer from this jack with a
commercially available USB cable allows remote
control by CAT commands from the 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).
RS-232C
This 9-pin serial DB-9 jack permits external
computer control of the FTDX101D. Connect a
serial cable here and to the RS-232C COM port on
your personal computer (no external interface is re-
quired).
SERIAL IN
SERIAL OUT
N/A
N/A
RTS
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.
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 capa-
ble of supplying at least 23 A @13.8 VDC.
RX OUT (MAIN)
This RCA jack provides output of the RF signal. For
connecting an external receiver and the like.
DATA OUT
PTT
DATA IN
N/A
GND
NC
CTS
LINEAR
This 15-pin output jack provides band selection
data, which may be used for control of optional ac-
cessories such as the VL-1000 Solid-state Linear
Amplifier.
ACC
This 13-pin jack may be connected to an external
device.
Power ON
GND
DATA1
DATA2
CLOCK
CS
3.3V
IF OUT (MAIN)
This RCA jack outputs the receiver 9.005 MHz IF
signal. This signal does not pass through the roof-
ing filter.
TX-GND
This RCA jack's center pin is closed to ground while
the transceiver's transmitter is engaged. The tran-
sistor open collector circuit used for this jack is ca-
pable of switching a DC voltage of 60 V at 200 mA,
or DC 30 V at up to 1Amp.
PTT
This RCA input jack may be used to provide manu-
al transmitter activation using a foot switch or other
switching device. Its function is identical to the
[MOX] key on the front panel. Open-circuit voltage
is 5 VDC, and closed-circuit current is 3 mA.
RX OUT (SUB)
This RCA jack provides output of the RF signal. For
connecting an external receiver and the like.
+13.8V
This RCA output jack provides regulated, sepa-
rately fused 13.8 VDC at up to 200 mA, to power
an external device such as a packet TNC. Make
sure your device does not require more current (if it
does, use a separate power source).
TUNER
This 8-pin output jack is used for connection to the
FC-40 External Automatic Antenna Tuner.
RESET(BAND D)
TX INH
RX D (BAND B)
TX GND
RX D (BAND A)
EXT-DISPLAY
DVI-I connector for connecting an external monitor.
When using an external monitor, set the setting
menu item "EXT DISPLAY" (page 105) to "ON".
Connect a monitor that supports 800 x 480
resolution or 800 x 600 resolution.
IF OUT (SUB)
This RCA jack outputs the receiver 8.900 MHz IF
signal. This signal does not pass through the roof-
ing filter.
13.8V
Reserve
Reserve
CNT RX
CNT TX
Reserve
BAND C
GND
+13V OUT
13