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PIN N°
ON DB9
RS232
The DB9 female connector on the front panel is an external communication RS232 serial port, through which
a PC can be connected directly to the amplifier in order to perform operations such as the remote control (by
means of an adequate software
The used communication protocol is asynchronous, at a 19200bps speed, 1 start bit, 8 data bits, 1 stop bit,
no parity. No hardware flow control is used. The connector is DCE type and the pin used are shown in Table 5.
PIN N° ON DB9
DESCRIPTION
MISCELLANEOUS
The J2 (called AUX), J4, J5 and J17 connectors are not used and are there only for future updates. The SW1
dip-switches are partially used for the configuration of the correct mode for the micro-controller. The other
switches are not used. It is important that the position of the dip-switches is left unchanged, because changing
it may set a wrong mode for the micro-controller, affecting the work of the whole amplifier.
2
For more information about this application contact the distributor of the manufacturer.
124
PIN N°
TYPE
ON J10
1
1
2
3
Digital
3
5
Digital
4
7
5
9
6
2
7
4
8
6
Analog
9
8
Analog
Table 4: Description of the AGC connector
2
) and the update of the microcontroller firmware.
1
2
-
TxD
Table 5: Description of the RS232 connector
DIRECTION
-
-
Output
Output
-
-
-
-
-
-
-
-
Output
Output
3
4
5
RxD
-
GND
DESCRIPTION
Ground
AGC Alarm
0V = Alarm
5V = Normal
AGC Alarm
0V = Alarm
5V = Normal
Not used
Not used
Not used
Nout used
Forward power
Forward power
6
7
8
-
-
-
9
-
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