Rockwell Automation 5370 CVIM Communications Manual - Manual (Page 34)

Chapter 3
Using Local I/O
3–15
Table 3.H
I/O Interface Box (Catalog No. 2801–N27):
RS–232 Port B Connector Series B CVIM Module
Pin Number Function Pin Number Function
1 No Connection 6 No Connection
2
RXD (Receive
Data: RS–232 B)
7 + 10V DC
3
TXD (Transmit
Data: RS–232 B)
8 No Connection
4 + 10V DC 9 No Connection
5 Ground (Signal)
The 1771–JMB interface board is designed for direct edge connection to the
I/O Interface Box, Catalog Nos. 2801–N21, –N27.
If you intend to use the 1771–JMB board and the I/O Interface Box, you will
need to know the relationship between the discrete I/O line numbers and the
LED numbers, the optic–isolator type, and the terminal block screws
numbers on the 1771–JMB board. These are shown in the figure and table
that follows.
To power the JMB logic components, you must connect an external +5VDC
power supply to the (+) and (–) terminals screws shown in the board layout
Figure 3.5.
Connections to
1771–JMB Interface