Rear Panel Jacks - Yaesu FT-410 Operation Manual

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1. DC IN Jack
This is the DC power supply connection for
the transceiver. Use the supplied DC cable
to connect directly to the car battery or to a
DC power supply, which must be capable of
supplying at least 22 A @13.8 VDC.
-
(viewed from rear panel)
2. ANT Jack
Connect your antenna here, using a type-M (PL-
259) coaxial connector and 50 Ohm coaxial
feedline.
Warning!: High Power RF voltage is present
at the TX RF section of the transceiver while
transmitting. Absolutely! Do not touch the TX RF
section while transmitting.
3. GND Terminal
For safety and optimum performance, use this
terminal to connect the transceiver to a good
earth ground. Use a large diameter, short braided
cable for making ground connections. Refer to
page 12 for other notes about proper grounding.
4. TUNER Jack
This 8-pin jack is used for Connection to the FC-
40 External Automatic Antenna Tuner.
 +13.8V OUT  TX GND OUT
 GND
 TX INH IN
 TUNER SENSE
 RESET OUT
5. LINEAR Jack
This 10-pin output jack provides band selection
data, which may be used for control of the
optional VL-1000 Solid-State Linear Amplifier.
FT-410 O
peraTiOn
5 6 7
+
 RXD
 TXD
(viewed from rear panel)
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anual
r p
ear anel
8
TX GND OUT
+13.8V OUT
BAND DATA-A (LSB)
TX INH IN
BAND DATA-B
EXT ALC IN
6. DATA Jack
This 6-pin input/output jack provides receiver
audio and squelch signals, and accepts transmit
(AFSK) audio and PTT control, from an external
packet TNC.
 DATA IN
 DATA PTT
DATA OUT
(viewed from rear panel)
7. CAT Jack
This 9-pin serial DB-9 jack allows external
computer control of the FT-410. Connect a
(straight) serial cable here and to the RS-
232C COM port on your personal computer (no
external interface is required).
CTS
N/A
GND
 Connect to ,
SERIAL IN
(viewed from rear panel)
8. EXT SPKR Jack
This 3.5-mm, 2-pin jack provides variable audio
output for an external speaker. The audio output
impedance at this jack is 4 - 16 Ohms and the
level varies according to the setting of the front
panel's [ AF] knob. Inserting a plug into this jack
disables the internal loudspeaker.
J
acKs
2 3
GND
BAND DATA-D (MSB)
TXREQ IN
BAND DATA-C
(viewed from rear panel)
 GND
 FSK IN
SQL OUT
RTS
 Connect to ,
Connect to ,
SERIAL OUT
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