Acom 2020S - Table 2-2 | Signals and Pin out of the CAT;AUX Connector; Table 2-3 | Signals and Pin out of the Rcus SERIAL Connector

User's Manual | ACOM 2020S | 1.8-54 MHz Linear Power Amplifier
June 2022
Sec t i o n INSTALLATION | Page 25 of 76
Table 2-2 | Signals and pin out of the CAT/AUX connector
CAT/AUX
interface
Pin Nr.
Pin name
Description
Specification
D-sub
connector,
15-pin,
3-row,
female
(Rear panel
view)
1
RxD
Receive Data
TTL input
2
RxD
Receive Data
RS-232 input
3
TxD
Transmit Data
RS-232 output
4
TxD
Transmit Data
TTL output
5
GND
Ground
0 Volt
6
BAND voltage
Analogue input
0 to +8 V
7
Band data 0
Bit 0
TTL input
8
Band data 1
Bit 1
TTL input
9
Band data 2
Bit 2
TTL input
10
Band data 3
Bit 3
TTL input
11
ON RMT
Remote Power On
+4.5 to +15 V / 3 mA max
12
Debug mode
CPU only Power input
+8 to +15 V / 0.4 A
13
KEY-IN
Tx request
Less than +12 V / 6 mA
14
KEY-OUT
Tx Ready
O.C. output, up to +50 V / 20 mA
15
GND
Ground
0 Volt
Table 2-2 | Signals and pin out of the CAT/AUX connector
b) RCU's SERIAL interface connector
Please, see Figure 2-6 | RCU model R05 rear panel, Pos. 4 and Table 2-3 | Signals and pin out of the RCU's SERIAL
connector.
RCU SERIAL interface will be used for connecting and operating various station components that cannot
supported by amplifier’s CAT/AUX connector - transceivers, rotators, etc.
Table 2-3 | Signals and pin out of the RCU's SERIAL connector
SERIAL
interface
Pin Nr.
Pin name
Description
Specification
D-sub
connector,
9-pin,
male
(Rear panel
view)
1
-
Not connected
-
2
RxD
Receive Data
RS-232 input
3
TxD
Transmit Data
RS-232 output
4
-
Not connected
-
5
GND
Ground
0 Volt
6
-
Not connected
-
7
RTX
Request To Send
RS-232 output
8
CTX
Clear To Send
RS-232 input
9
-
Not connected
-
Table 2-3 | Signals and pin out of the RCU's SERIAL connector