Recommended user-supplied components – Rockwell Automation 1764-xxxx MICROLOGIX 1500 PROGRAMMABLE CONTROLLERS User Manual
Page 87
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Publication 1764-UM001B-EN-P - April 2002
Communication Connections 4-19
Recommended User-Supplied Components
The components in Table 4.8 can be purchased from your local
electronics supplier.
Table 4.8 User Supplied Components
Component
Recommended Model
external power supply and chassis
ground
power supply rated for 20.4-28.8V dc
NULL modem adapter
standard AT
straight 9-25 pin RS-232 cable
see table below for port information if making own
cables
DB-9 RS-232
RS-485 connector
8-pin mini-DIN
(2)
Port 1
Port 2
Port 3
6
7
8
9
1
2
3
4
5
4
1 2
5
8
7
6
3
6
5
4
3
2
1
(2) The 8-pin mini-DIN connector is not commercially available.
Table 4.9 AIC+ Terminals
Pin
Port 1: DB-9 RS-232
Port 2
(2)
(2) An 8-pin mini DIN connector is used for making connections to port 2. This connector is not commercially
available.
Port 3: RS-485
Connector
1
received line signal
detector (DCD)
24V dc
chassis ground
2
received data (RxD)
ground (GND)
cable shield
3
transmitted data (TxD)
request to send (RTS)
signal ground
4
DTE ready (DTR)
(1)
(1) On port 1, pin 4 is electronically jumpered to pin 6. Whenever the AIC+ is powered on, pin 4 will match the state
of pin 6.
received data (RxD)
DH-485 data B
5
signal common (GND)
received line signal detector (DCD) DH-485 data A
6
DCE ready (DSR)
clear to send (CTS)
termination
7
request to send (RTS)
transmitted data (TxD)
not applicable
8
clear to send (CTS)
ground (GND)
not applicable
9
not applicable
not applicable
not applicable