RS422/485 COMMS PORT

The G308 has one RS422/485 port. This port can be configured to act as

either RS422 or RS485.

Note: All Red Lion devices connect A to A and B to B, except for Paradigm

devices. Refer to www.redlion.net for additional information.

5

Examples of RS485 2-Wire Connections

G3 to Red Lion RJ11 (CBLRLC00)

DLC, IAMS, ITMS, PAXCDC4C

A+

4

TxA

2

B-

5

TxB

1

COM

3

COM

6

TxEN

2

TxEN

5

Name

RLC: RJ11

Name

G3: RJ45

Connections

G3 to Modular Controller (CBLRLC05)

TxA

8

TxA

8

TxB

7

TxB

7

COM

6

COM

6

TxEN

5

TxEN

5

RxA

TxA

3,2

2,3

RxA

TxA

3,2

2,3

RxB

4,1

RxB

4,1

TxB

1,4

TxB

1,4

Name

Modular Controller

Name

G3

Connections

DH485 COMMUNICATIONS

The G308’s RS422/485 COMMS port can also be used for Allen Bradley

DH485 communications.

WARNING: DO NOT use a standard DH485 cable to connect this port to Allen

Bradley equipment. A cable and wiring diagram are available from Red Lion.

G3 to AB SLC 500 (CBLAB003)

24V

-

TxA

3, 8

COMM

-

TxB

4, 7

SHIELD

4

COMM

6

TxEN

5

TxEN

5

COMM

-

RxB

4, 7

24V

-

RxA

3, 8

B

2

TxA

2

A

1

TxB

1

Name

RJ45: A-B

Name

RJ45: RLC

Connections

RS422/485 4-WIRE

CONNECTIONS

RS485 2-WIRE

CONNECTIONS