Rockwell Automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM User Manual
Page 283
Publication AG-UM008C-EN-P - February 2005
Configuring Modems 8-17
Cable Pin Assignments
The Model 148-001 requires an RS-232 15-pin male connector with the
pin assignments shown in Figure 8.10 or these MARC cable
assemblies:
•
127-058 (1785-KE to MARC 148-001)
•
127-064 (1785 PLC-5/xx to MARC 148-001)
Figure 8.10 MARC, Inc. Model 148-001
Table 8.15 MARC, Inc. Model 148-001 Pin Assignments
Switch Settings
For Bell 202 full-duplex operating mode, set the switches on
Model 148-001 according to those in Table 8.16. For Bell 202
half-duplex operating mode (point-to-multipoint), set the switches on
Model 148-001 to those in Table 8.17.
MARC
MARC #148-001
Line 2
Line 1
Ports 1 and 2:
15-pin D female
port
2-RJ11 jacks
5 Receive(-)
4 Transmit (-)
3 Transmit (+)
2 Receive (+)
To Allen-Bradley PLC-5/xx
or 1785-KE
Modem
15-pin female
Pin Name
Pin Name
PLC-5
25-pin female
1785-KE
15-pin female
2
TXD.IN
—
TXD.OUT
2
2
3
RXD.OUT
—
RXD.IN
3
3
4
RTS.IN
—
RTS.OUT
4
4
5
CTS.OUT
—
CTS.IN
5
5
7
SIG.GND
—
SIG.GND
7
7
(1)
8
DCD.OUT
—
DCD.IN
8
8
11
DTR.IN
—
DTR.OUT
20
(2)
11
(3)
(1) Pin 7 is jumpered (within the connector) to pin 13.
(2) Pin 20 is jumpered (within the connector) to pin 6.
(3) Pin 11 is jumpered (within the connector) to pin 6.