Manual Chapter 4

4-35

Attaching the Fixtures

Communication Between the Fixtures and Analyzer

The UltraSpec analyzer conducts communication with the ﬁxtures via a

short-range, low-power radio frequency (RF) carrier or by cable.

Communication

– With RF, communication occurs in much the same

manner as with other short-range wireless systems (e.g., cordless phones) –

a direct line of sight communication is not required.

A typical operating range of up to 50 feet can be achieved using RF com-

munication, but this range is greatly inﬂuenced by building construction

materials and contents, other radio systems operating in the vicinity at or

near the same operating frequency, and noise generated by nearby equip-

ment. It is not unusual to achieve four times the typical operating range in

electrically quiet environment or to achieve less then the typical operating

range in an electrically noisy environment.

Note

The RF operating frequency is 916.5 mHz.

Note

This equipment has been tested and found to comply with the

limits for a Class A digital device, pursuant to Part 15 of the

FCC Rules. These limits are designed to provide a reasonable

protection against harmful interference when the equipment is

operated in a residential environment. This equipment gener-

ates, uses, and can radiate radio frequency energy and, if not

installed and used in accordance with the instruction manual,

may cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to

cause harmful interference in which case the user will be

required to correct the interference at his own expense.

Caution!

Changes or modiﬁcations not expressly approved by CSI could void the

user's authority to operate the equipment.