User Manual

___________________________________________________________________________

WhereLAN III User’s Guide

___________________________________________________________________________ 77

User’s Guide, WhereLAN III draft D1675 rev F

Zebra Confidential

8.3 Timing Cable Interconnection Guidelines

In certain cases, the WhereLAN III may require a timing cable to be

connected to other nearby WhereLAN III units. In general, the use such wired

timing links should not be necessary with a good site design, but may be

necessary in select cases. 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.

____________

Note

____________

Note

____________