User's Manual

Pyramid Series Proximity Readers
2177 Leghorn Street 01566-002 Rev. 1.2
Mountain View, CA 94043-1605 USA Page 6 of 22
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Web: http://www.pyramidseries.com E-mail: [e-mail]
Product ManualPyramid Series
2.2 Cable Requirements
All readers operate with up to 500 feet (152 m) of cable, using seven-conductor
1
,
shielded, stranded cable. Per Wiegand specification, AWG 24 (such as Belden 9537) is the
minimum gauge required for data transfer in a 500-foot run length. However, the proper
wire gauge to use must be determined by the current draw requirements of the reader, the
length of the cable run, and the voltage being applied to the reader.
If the reader is to be operated at 5 VDC, 5 VDC must be available at the reader (long cable
runs have a voltage drop due to the resistance in the cable). A larger gauge of wire
(having less resistance) or a separate power supply near the reader may be required to
ensure 5 VDC is available at the reader.
3.0 Reader Configuration
There are no switches or jumpers to set. All Pyramid Series readers are compatible with
and can be connected to virtually any access panel that meets Wiegand or magnetic stripe
interface standards. All connections needed to support the reader are made through the
reader's cable. Please consult the Wiring Connections section on page 12 for wiring
instructions.
1. Seven-conductor cable is necessary for dual LED, however less may be used with single LED. The
P-400 only requires five-conductor cabling (such as Belden 9535).