Z-Max Advanced Programming & Systems Design Guide rac00-sdg
Revision A:11/2005 Page 149
Wire Recommendations
• Use Belden #1502R or 1502P
• See the table for alternate approved Wire Types
• Use RS485 compatible cable for the communications. It is recommended that a
cable with 2 Twisted Pair, 24 AWG, stranded conductors be used. The spare pair is
for future uses.
• Capacitance of wire shall be 15 pF/ft. or less
• Nominal Impedance of wire shall be between 100-120 ohms
• Drain/Shields to be tied together, insulated and grounded (on one point only)!
• If an alternate approved wire type, like Belden 9829, is used, a second pair (#14
AWG stranded or larger) is required for the power.
The most effective way to insulate the drain/shield wire is to use a
piece of heat shrink tubing!
.
Figure 11: Luma-Net Recommended Wire
Manufacturer Catalog Number # of Pairs
Belden 1502R
1502P (Plenum Rated)
(1) Data Pair
(1) 18Awg Power Pair
Belden 9729, 9829, 8102 2
Belden 9841 1
Belden 89729, 88102 2 (Plenum Rated)
Alpha 6222C 1
Alpha 6412 1
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