Kenwood TS-B2000, TS-2000X instruction manual EXT.CONT connector Pin No Function

16CONNECTING PERIPHERAL EQUIPMENT TYPICAL MCP/ TNC SETUP

Power supply for

TNC/ MCP

TS-2000 �

TS-2000X

TNC/MCPTS-2000B

Personal computer

Black

Red

PS-53

Power supply for TS-2000(X)/ TS-B2000

LINEAR AMPLIFIER (50 MHz, VHF, UHF and 1.2 GHz)

Connect an external 50 MHz /VHF/ UHF/ 1.2 GHz power amplifier control cable to the EXT.CONT connector. The TX/RX switching time can be configured independently for each band, accessing Menu No. 28B ~ 28E. Select 1 for 10 ms delay or 2 for 25 ms delay. However, when CW Full Break-in is enabled, 10 ms switching delay is applied automatically regardless of the settings. You can also disable the EXT.CONT control, selecting OFF (default).

Note: The TX/RX control method differs, depending on external amplifier models. Most amplifiers enter the TX mode when the control terminal is grounded. For those amplifiers, connect the metal cover of the EXT.CONT connector to the GND terminal of the amplifier and connect pin 2 (50 MHz), pin 6 (144 MHz), pin 1 (430 (440) MHz), or pin 4 (1.2 GHz) of the connector to the control terminal of the amplifier.

r w t	EXT.CONT
q y e	Front view
u i	(Rear panel)
GND

Circuit of each TXC (pin 1, 2, 4, and 6)

C TXC

B(20V DC, 20mA max.)

E

Circuit of ALC inputs (pin 3, 5, 7, and 8)

pin 3

pin 5

pin 7

pin 8

EXT.CONT connector

Pin No.	Pin	Function
	Name
		Grounded when the transceiver
1	43TXC	transmits on the 430/ 440 MHz
		band. (DC 20V, 20 mA max.)
		Grounded when the transceiver
2	50TXC	transmits on the 50 MHz band.
		(DC 20V, 20 mA max.)
3	ALC	ALC input from amplifier (–7V).
		Grounded when the transceiver
4	12TXC	transmits on the 1.2 GHz band.
		(DC 20V, 20 mA max.)
5	ALC	ALC input from amplifier (–7V).
		Grounded when the transceiver
6	14TXB	transmits on the 144 MHz band.
		(DC 20V, 20 mA max.)
7	ALC	ALC input from amplifier (–7V).
8	ALC	ALC input from amplifier (–7V).
Metal	GND	Ground
cover

96