Microe OPS Series Uživatelský manuál stáhnout pdf (Strana 21)

Jacket

Aluminum

Polyester

Shied

Braided

Shield

Page 21

Appendix C

Interface Cable Requirements

OPS Series

Signal Twisted Pair

A+ Pair 1

A-

B+ Pair 2

B-

Index+ Pair 3

Index-

+5V Pair 4

GND

Left Limit Pair 5

Right Limit

1. Customer Interface Cable Requirements

Customer cables that interface to OPS

™

series encoders must have the following characteristics:

• Twisted pair signal wiring.

• Characteristic impedance of 100-120 ohms.

• Sufficient wire gauge to meet the minimum voltage requirement at the encoder, for example 24AWG

gauge wire for a 2m length cable. Examples of acceptable cables with 24AWG gauge wire and 4

twisted pairs are Belden 9831, 8104, and 9844 or other manufacturer’s equivalents.

• Single shield cable with a minimum of 90% coverage. Note that a double shielded cable may be

required in high-noise applications.

2. Signal Wiring

Each differential signal should be connected to a corresponding twisted pair as follows:

Fold braided shield back over jacket. Example shows double-shielded cable.

Dimensions shown are for illustration only.

3. Shield Termination:

The customer's cable shield should be in 360° contact with the connector shroud and the connector shell to

provide complete shielding. The connector shell should be metal with conductive surfaces. Suggested metal

connector shells for use with OPS

™

encoders: AMP 748676-1 or equivalent. The shield should be terminated

as illustrated in the following diagram.

1 2 ... 16 17 18 19 20 21 22 23 24 25

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