SMA Sunny Boy Control Light - Manual (Page 22)

Sunny Boy Control Light Chapter 3: Installing of the connectors
SUNBCL-11:NE
- 22 -
SMA Regelsysteme GmbH
<>: These pins are connected to each other. Additionally to this PIN 1, PIN 6 and PIN
8 have to be connected with a bridge.
PIN
1
2
3
4
5
6
7
8
9
DSUB9-Socket DSUB9-Socket
PIN
1
2
3
4
5
6
7
8
9
Fig. 3.5: PC data cable DSUB9<>DSUB9
Cabling of a modem elimination cable DSUB9<>DSUB25
DSUB9 socket DSUB25 socket
Signal PIN PIN Signal
/RXD 2 <> 2 /TXD
/TXD 3 <> 3 /RXD
GND 5 <> 7 GND
RTS 7 <> 5 CTS
| 6 DSR
| 8 DCD
CTS 8 <> 4 RTS
DCD 1 |
DSR 6 |
Fig. 3.6: PIN designation PC data cable DSUB9<>DSUB25
<>: These pins are connected to each other
short circuits on PIN 1, PIN 6 and PIN 8 on the DSUB9 socket and PIN 5, PIN 6 and
PIN 8 on the DSUB25 socket.