© ioSelect Inc.
CONFIDENTIAL
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EtherWave - WMR
3.0 Hardware Features
3.1.2 Rear
Image 3B: Rear View of EtherWave-WMR
COM1 Port (DCE)
on the rear of the EtherWave-WMR is used for
RS232 serial data (300 baud to 230.4kbps) communications.
RS422/485 Port
used to interface the EtherWave-WMR to a DTE
with the same interface type (300 baud to 921kbps).
Either the RS232 or RS422/485 interface is used for ‘COM1’ data
traffic.
Table 3B: COM1 (RS-232) Pin Assignment
Pin Name No. Description
In/
Out
DCD
1 Data Carrier Detect
O
RXD
2 Receive Data
O
TXD
3 Transmit Data
I
DTR
4 Data Terminal Ready
I
SG
5 Signal Ground
DSR
6 Data Set Ready
O
RTS
7 Request To Send
I
CTS
8 Clear To Send
O
See Appendix F for a full description of the COM1
RS-232 interface functions.
