SPE EXPERT 1.5K-FA - Connections and Interfacing; CAT Connector Pinout and Interfaces

User manual
Expert Amp 1.5K-FA
INDEX Page. 36 of 89
12. CONNECTIONS
12.1 CAT Connector
The pin outs are shown in the schematic below.
The connections are the same for our 1K-FA, 1.3K-FA and 2K-FA amplifiers.
pin n.
pin name
Description
1
RX 232
Used on KENWOOD and YAESU transceivers for linking 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.
14
DATA B
Bit B of Band Data.
7
DATA C
Bit C of Band Data.
15
DATA D
Bit D of Band Data.
8
REMOTE ON
Applying a voltage from 9 to 15 VDC, turns the amplifier ON.