SPE EXPERT 1.3K-FA - Connections and Interfaces; CAT Connector Pinout

User manual
Expert Amp 1.3K-FA
Page. 34 of 87
12. CONNECTIONS
12.1 CAT Connector
The pin outs are shown in the schematic below. The connections are the same for our
1K FA and 2K FA amplifiers.
pin n.
pin name
Description
1
RX 232
Used on KENWOOD and YAESU transceivers for the link with a
RS-232 connection.
9
TX 232
2
/ TX - INH
Open collector normally OFF, it stops transmission when
grounded. (ON).
10
RX TTL
Used on Icom, KENWOOD and YAESU transceivers for the
CAT 5V TTL connection.
3
TX TTL
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), it 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 distributor. New connectors are included with the amplifier.
The transceiver connectors (called “Radio” in the next diagram) are usually supplied
with the transceiver.