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Smart Card Reader cable specification for Wiegand and RS-485 connections.

Issue

The Smart Card Reader Installation Manual cable specification does not specifically state which connection type the sepecified cables are for.

Environment

 

Security Expert Smart Card Readers

 

SX-DRD-SB

 

SX-RD-MB

Cause

The four multi conductor cable specifications mentioned in the Smart Card Reader Installation Manual are the approved cables for Wiegand connections only. There is no mention of the RS-485 cable specification in this document.

Resolution

 

 

 

Smart Card Reader Wiegand Cable

 

The cable specifications are:

  • 22Awg alpha 5196 or 5198
  • 18Awg alpha 5386 or 5388.
  • Maximum cable distance of 150m (492ft)

 

 

Smart Card Reader RS-485 Cable

 

The cable specification for RS-485 connections (including when those connections are encrypted) is not in the Smart Card Reader Installation Manual but does show up in the SP-C Manual under the "Module Wiring" heading. These same cable specifications apply to Smart Card Reader RS-485 cables as well.

  • Belden 9842 or equivalent
  • 24AWG twisted pair with characteristic impedance of 120ohm
  • Maximum total length of cable is max 900m (3000ft)
  • CAT5e / CAT6 are also supported for data transmission when using ground in the same cable (to a maximum length 100m (328ft))
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Version history
Revision #:
5 of 5
Last update:
‎2018-09-10 10:16 PM
Updated by:
 
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