Subject to alterations
Version 1.2
IPCOMM GmbH
- 6 -
SEC2 Manual
Gundstraße 15
Copyright © 2010 IPCOMM GmbH
91056 Erlangen
All rights reserved
Germany
2.3 Hardware Components
2.3.1 Onboard RS232 Interfaces
The serial interfaces have an RJ45 connector available. COM 1 is software configurable as
RS232/RS422/RS485, COM 2 to COM 4 can be used as RS232/RS485. See the pin assignment
below.
Attention! COM1 and COM2
– COM4 have a different pin assignment!
SERIAL PORT
RJ45 female connector
Pin
RS232
RS422
RS485
1
DSR
---
---
2
RTS
TXD+
Data+
3
GND
GND
GND
4
TXR
TXD-
Data-
5
RXD
RXD+
---
6
DCD
RXD-
---
7
CTS
---
---
8
DTR
---
---
Pin assignment of RJ45 interface (COM 1)
Figure 5:
SERIAL PORT
RJ45 female connector
Pin
RS232
RS422
RS485
1
---
---
---
2
RTS
---
Data+
3
GND
---
GND
4
TXR
---
Data-
5
RXD
---
---
6
---
---
---
7
CTS
---
---
8
---
---
---
Pin assignment of RJ45 interfaces (COM 2 – COM 4)
Figure 6: