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Specification No. 02125-001 Rev 0713

Differential Line Driver

Encoder signals from 5 VDC to 24 VDC (must specify the voltage when ordering)

This is the preferred type of encoder output as it has the best noise immunity. Connect each encoder signal to its like optical isolator

input (A to A, A/ to A/, etc).

Single Ended Line Driver

Encoder signal from 5 VDC to 24 VDC (must specify the voltage when ordering)

Connect encoder output A to optical isolator module input channel A, B to B and Z to Z. Connect the A/, B/, and Z/ inputs of the optical

isolator to circuit common of the encoder supply. Single ended operation is limited to shorter cable runs and is more susceptible to noise.

CONNECTION INSTRUCTIONS #1

Z

Z/

No Connection

No Connection

ENCODER

B/

B

A/

A

CONTROLLER

A

A/

B

B/

Z

Z/

Vs, 5V to 28V

0V, Power Common

A

A

A/

A/

B

B

B/

B/

Z

Z

Z/

Z/

+V

0V

A

A/

B

B/

Z/

Z

+V

0V

REG

VS

0V

Optical Isolator

Encoder Differential Line Driver Output

Figure 1

Standard Connection to

Optical Isolator Module

CONNECTION INSTRUCTIONS #2

A

A

A/

B

B

B/

Z

Z

Z/

+V

0V

A

A/

B

B/

Z/

Z

+V

0V

REG

VS

0V

Optical Isolator

Encoder Single Ended Line Driver Output

Figure 2

Connection Diagram

Single Ended Line Driver

Encoder

Supply

Z

No Connection

Connect A/, B/, Z/ to

Encoder Circuit

Common

ENCODER

B

A

CONTROLLER

A

A/

B

B/

Z

Z/

Vs, 5V to 28V

0V, Power Common

No Connection