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)

(2)

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

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