User manual EXPERT 2K-FA
Pag. 32 of 32 Issue 2 – May 2011
12. CONNECTIONS
12.1 CAT Connector
In this diagram the rear panel CAT connector and pin-outs are shown. If you have
already used our 1K-FA amplifier you will note the connections are the same.
pin n. pin name Description
1 RX 232
9 TX 232
Used on KENWOOD and YAESU transceivers for the link with a RS-
232 connection.
2 / TX - INH
Open collector normally off, stops transmission when gnd. (on).
10 RX TTL
3 TX TTL
Used on Icom, KENWOOD and YAESU transceivers for the CAT 5V
TTL connection.
11 KEN TTL Connect to GND if CAT 5V TTL KENWOOD connection.
4 GND Signal ground.
12 RELAY Connected in parallel with the RCA phono RELAY connector.
5 ALC Connected in parallel with the RCA phono ALC connector.
13 TX - INH
Normally to gnd. (550 ohm), stops transmission when + 12V.
6 DATA A Bit A of Band Data (digital switch of band for YAESU).
14 DATA B Bit B of Band Data (digital switch of band for YAESU).
7 DATA C Bit C of Band Data (digital switch of band for YAESU).
15 DATA D Bit D of Band Data (digital switch of band for YAESU).
8 REMOTE ON Applying a voltage from 9 to 15 Vdc. turns the amplifier ON.
Using the above information, an appropriate cable for your transceiver(s) may be
constructed, or you might wish to order a correctly made-up cable when you order your
amplifier from your local dealer. The amplifier connector is included with the amplifier,
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