Model 200/300 Cable Specifications

This document gives information on making network cables for the old Model 200 and Model 300 Invisible Network adapters.

Specifications

• Dual twisted-pair cable.

• 100 ohm impedance
  (this is critical).

• 24 gauge solid copper leads
  (no substitute metal).

• Cable must be network communication grade.

• Modular plugs should be RJll-6 instead of RJll-4
  (this is due to the extreme amount of play with the RJll-4 plugs).

• There should be no break in the cable continuity
  (this means no wall plates, no junction boxes, and no wire mends with electrical tape or solder).

• There should be no bridging between buildings
  (this is due to the difference in grounding between the buildings).

• The overall cable run should not exceed 800' (eight hundred feet).

• Shielded cable is not required but recommended for networks operating in high-interference areas.

• Wires: Non-polarized.
  Orange/White pair in the center using pins 3 & 4.
  Blue/White pair on the outside using pins 2 & 5.
  Note: pairs don't have to match on both sides
  (i.e. Orange/White can connect to White/Orange on other side).

Twisted-pair Cabling Supplies

• AT&T Network Communications Cable.
  P/N 104315205.
  Specs: 1024 002AGY 2/24 W1000.

• AMP Inc. Modular Plugs. 6-position.
  P/N 5-555042-3.
  Specs: 24/26 AWG SOLID WIRE PLUG 150 volts max, 1.5 amps max.

• Paladin Modular Plug Termination Tool (Crimp Tool).
  P/N PA-1502.
  Specs: 2, 4, or 6 conductor capable. Wire size: 28 AWG.

Notices: Copyright 1993 by Invisible Software, Inc. Invisible Software and InvisibleLAN are trademarks of Invisible Software, Inc. Other trademarks are the property of their respective holders.

This document was prepared on 03/03/93, and was believed to be accurate as of that date. Procedures, specifications, and compatibility may change without notice, and therefore this document may be out-of-date and/or inapplicable to current product versions. Invisible Software provides this document "AS IS" and without warranty of any kind. Under no circumstances shall this document be construed as creating or expanding any warranty of product performance.

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