User's Manual

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WhereLAN III User’s Guide

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User’s Guide, WHERELAN III D1675 rev A

Zebra Confidential

8.1 Timing Cable Interconnection Guidelines

For some applications the Location Sensor requires a timing cable to be

connected to other nearby Location Sensor units. The site design document,

provided by the site designer, will specify which Location Sensors will be

connected together. Each of the three timing ports on the Location Sensor is

an identical bi-directional link. The cable and connector types are specified in

section 4 above.

The following rules must be applied when connecting timing cables between

the Location Sensors:

• Do not connect the timing cable from one Location Sensor back to the

same Location Sensor.

• Do not connect two timing cables between the same two Location

Sensors.

• The maximum timing cable length is 1000 feet (305 m).

Do not exceed the maximum timing cabling length of 1000 ft (305 m).

Install the Location Sensor timing cables from one unit to the next, as

specified in the site design document, using the specified 2 pair or 4 pair*

cable and RJ22 (telephone handset 4c4p) connectors. (* see 8.2.1)

Incorrect routing of the timing cables between the Location Sensors may

result in decreased location accuracy.

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