Webasto DVS100 Installation, Operation And Maintenance Manual page 51

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
3
4
5
6
7
8
9
20182-W-03-01
IMPORTANT INFORMATION – SAVE THESE INSTRUCTIONS
Signal Characteristics
TXD Serial data transmit from
charger
RXD Serial data receive to charger
GND Serial data ground reference
Figure 6- 2 Diagnostic port pinout
DVS100 Installation, Operation and Maintenance
Signal Source
Charger
Diagnostic tool
Common
45
Signal
Destination
Diagnostic
tool
Charger
Common
Webasto Charging Systems, Inc.