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Chapter 1 - About the Modbus Protocol Converter
3
1-3
Connectors
1-3-1
Bottom Connectors
ModbusRTU
interface
and RS-232
The 9-pole DSUB, male connector on the device contains an RS-232 interface.
This port can be used to connect any equipment with an RS-232 interface.
Ethernet
interface
The Ethernet interface supports 10/100 Mbps, by using a standard RJ-45
connector.
Position
Description
1
Serial interface 9-pin DSUB RS-232
2
Ethernet interface, RJ-45 10/100 Mbps
Ethernet interface
(RJ-45, 10/100Mbps)
Aspect
Pin no.
Signal
1
CD (Carrier Detect)
2
Rx (Receive)
3
Tx (Transmit)
4
DTR (Data Terminal Ready)
5
GND
6
DSR (Data Set Ready)
7
DSR (Data Set Ready)
8
CTS (Clear To Send)
9
RI (Ring Indicator)
1
5
6
9
Male
Connector
Serial interface
(DSUB-9, RS-232)
Summary of Contents for DY-5121
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