|
Jumper
positions on the board are as follows:
    
Table 1 COMPUTER PERIPHERAL TO
CONVERTER (RS232 CABLE)
|
COMPUTER/PERIPHERAL END
OF THE CABLE |
CONVERTER END
OF THE CABLE |
|
9 PIN
SOCKET |
25 PIN
SOCKET |
9 PIN
SOCKET |
|
Pin No. |
Signal |
Pin No. |
Signal |
Pin No. |
Signal |
|
3 |
TX |
2 |
TX
|
2 |
RX |
|
2 |
RX |
3 |
RX |
3 |
TX |
|
5 |
GND |
7 |
GND |
5 |
GND |
Table 2 INTERCONNECTION CABLE FROM
CONVERTER TO EQUIPMENT – POINT TO POINT SYSTEM
|
CONVERTER END OF THE CABLE |
EQUIPMENT END OF THE CABLE |
|
9 PIN
PLUG |
As per Equipment Configuration |
|
Pin No. |
Signal |
Pin No. |
Signal |
|
1 |
TX+ |
|
RX+ |
|
2 |
TX- |
|
RX- |
|
6 |
RX+ |
|
TX+ |
|
7 |
RX- |
|
TX- |
|
5 |
GND |
|
GND |
TOP
Table 3 INTERCONNECTION CABLE FROM
CONVERTER TO EQUIPMENT – POINT TO POINT SYSTEM - TWO WIRE COMMUNICATION
|
CONVERTER END OF THE CABLE |
EQUIPMENT END OF THE CABLE |
|
9 PIN
PLUG |
As per Equipment Configuration |
|
Pin No. |
Signal |
Pin No. |
Signal |
|
1 and 6 Shorted |
(TX+ and RX+ Shorted)
+(B) |
|
+(B) |
|
2 and 7 shorted |
(TX- and RX- shorted)
-(A) |
|
-(A) |
|
5 |
GND |
|
GND |
TOP
Table 4 INTERCONNECTION CABLE FROM
CONVERTER TO EQUIPMENT _ MULTIPOINT SYSTEM - FOUR WIRE COMMUNICATION
|
CONVERTER END OF THE CABLE |
ALL EQUIPMENT (CONNECTED IN THE MULTIPOINT
SYSTEM) OF THE CABLE |
|
9 PIN PLUG |
As per Equipment Configuration |
|
Pin No. |
Signal |
Pin No. |
Signal |
|
1 |
TX+ |
|
RX+ |
|
2 |
TX- |
|
RX- |
|
6 |
RX+ |
|
TX+ |
|
7 |
RX- |
|
TX- |
|
5 |
GND |
|
GND |
Table 5 INTER CONNECTION
CABLE FROM CONVERTER TO EQUIPMENT - MULTIPOINT SYSTEM - TWO WIRE COMMUNICATION
|
CONVERTER END OF THE CABLE |
ALL EQUIPMENT (CONNECTED IN THE MULTIPOINT
SYSTEM) OF THE CABLE |
|
9 PIN PLUG |
As per Equipment Configuration |
|
Pin No. |
Signal |
Pin No. |
Signal |
|
1 and 6 Shorted |
(TX+ and RX+Shorted)
+(B) |
|
+(B) |
|
2 and 7 shorted |
(TX- and RX- shorted)
-(A) |
|
-(A) |
|
5 |
GND |
|
GND |
TOP
Table 6 DIP SWITCH SETTING
|
Switch No. |
Status |
Description |
|
1 |
ON |
19200 Baud |
|
OFF |
9600 Baud ( Factory
Setting) |
|
2 |
ON |
Terminating Resistor Enabled |
|
OFF |
Terminating Resistor Disabled( Factory Setting) |
|
3 and 4 |
ON |
Two Wire Mode |
|
3 and 4 |
OFF |
Four Wire Mode ( Factory
Setting) |
|
Note : TX will automatically get enabled whenever
data is received on RX pin of RS232 input and will remain enabled for next
1 ms (19200 baud) or 2 ms(9600 baud) after transmission is over. When
there is no data being received on RS232 RX pin, TX will remain disabled.
|
Table 7 JUMPER DETAILS
|
Jumper No. |
Status |
Description
|
|
J1 |
1-2 |
Permanent TX Enable |
|
2-3 |
Auto TX Enable ( Factory Setting)
|
|
J2 |
1-2 |
Permanent RX Enable |
|
2-3 |
Auto RX Enable ( Factory Setting) |
TOP
|
