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1
VMIACC-5595 Installation Guide
RS232 Serial Port
Figure 1-10
RS232 Connector Pin Assignment
Table 1-4
RS232 serial port pin out
Pin No.
Standard
Name
Standard Description
VMIACC-5595 Function
Direction
1
CD
Carrier Detect
No Connection
--
2
RD
Receive Data
Receive Data
Output to PC
3
TD
Transmit Data
Transmit Data
Input from PC
4
DTR
Data Terminal Ready
Reset Ethernet Module (Low)
Input from PC
5
SG
Signal Ground
Signal Ground
--
6
DSR
Data Set Ready
Status
Output to PC
7
RTS
Request To Send
Tied to CTS only
Input from PC
8
CTS
Clear To Send
Tied to RTS only
Output to PC
9
RI
Ring Indicator
No Connection
--
1
2
3
4
5
6
7
8
9
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