Publication 1764-UM001A-US-P
Installing and Wiring Your Module
3-9
DTE and DCE Overview
DTE - Data Terminal Equipment
The module’s serial ports are configured as 9-pin Data Terminal Equipment
(DTE), as are most terminals or computer ports.
IMPORTANT
You need to know whether the device connecting to the module
has a DTE or DCE interface. Figure 3.8 through Figure 3.12 are
provided to help you make the appropriate connection.
Table 3.2 DTE Configurations
DTE 9 Pinout
Signal from
DTE
Perspective
DTE 25 Pinout
Pin #
Signal Description
Pin #
Signal Description
1
NC-No Connection
(for BASIC module only)
Input
8
CD-Carrier Detect
2
RXD-Received Data
Input
3
3
TXD-Transmitted Data
Output
2
4
DTR-Data Terminal Ready
Output
20
5
Com-Signal Common
Shared
7
6
DSR-Data Set Ready
Input
6
7
RTS-Request to Send
Output
4
8
CTS-Clear to Send
Input
5
9
NC-No Connection
(for BASIC module only)
Input
22
RI-Ring Indicator
Summary of Contents for 1746-BAS
Page 4: ...Publication 1746 UM004A US P Summary of Changes ii...
Page 8: ...Publication 1746 UM004A US P Table of Contents iv...
Page 26: ...Publication 1746 UM004A US P 1 14 Module and Development Software Overview...
Page 34: ...Publication 1764 UM001A US P 2 8 Component Selection...
Page 70: ...Publication 176 UM04A US P A 4 Specifications...
Page 83: ...Spare Allen Bradley Parts...