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SVS-200
6.2
External Interface Specifications (Diagnostic Port)
Located on the charger front panel is a 9-pin RS232 connector that will allow devices such as
laptops to monitor the charger activity, data stream and charge history. As soon as the application
software is up and running communications can begin. The diagnostic port is configured as a
DCE device (Data Communications Equipment). Connect directly to a standard PC RS-232 port
(DTE) found on a PC. The port is a DSUB 9 pin female connector. The serial port pin out is as
follows:
Diagnostic
Signal
port pin
Description
1
2
TXD
3
RXD
4
5
GND
6
7
8
9
20153-W-03-01
IMPORTANT INFORMATION – SAVE THESE INSTRUCTIONS
Signal Characteristics
Serial data transmit from
charger
Serial data receive to
charger
Serial data ground reference
Figure 6- 2 Diagnostic port pinout
Installation, Operation and Maintenance
Signal
Source
Charger
Diagnostic
tool
Common
42
Signal
Destination
Diagnostic
tool
Charger
Common
Webasto Charging Systems, Inc.
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