User's Manual

Versus Information System User Guide

Proprietary Information – Do Not Distribute Page 18

b) V-Direct Radio Frequency (RF) Sensors (VER-4452)

Radio Frequency (RF) Sensors operate

at 433.92 MHz receive frequency. The

Sensors convert encoded RF signals

emitted by badges into electrical

signals and transmit them to Collectors

via a single unshielded, twisted-pair

wire.

Planning the location of RF Sensors

depends upon the layout or the facility. In most cases, for complete

coverage, RF Sensors can be placed approximately 100 feet apart,

because they have a sensitivity range radius of approximately 50 feet.

However, since concrete and steel may absorb the RF signals and other

materials may also affect the strength of RF signals, testing is necessary

to determine the best placement of RF Sensors.

Badge signals received by VER-4452 RF Sensors are used to notify the

Versus system of badge button presses, Remote Station button presses

and badge battery status. RF also acts in a supervisory capacity,

prompting the system to continue to display the last known IR location of

badges that are not currently being detected by IR sensors.

IR AND RF WORK TOGETHER

For a real-time healthcare locating system to be truly useful and

beneficial, the system must provide precise, reliable location data.

Workflow decisions and vital actions should not be based on the

imprecise data received from RF-only locating systems.

2. V-Direct Collectors (VER-2407)

After Sensors receive signals

from badges and convert them to

electrical signals, the data is

passed to a Collector. The

Collector accepts the input from

the Sensors and assembles the

data into larger, network-ready

packets. The packets are then

relayed to the Ethernet

Concentrators.

A punch-down connector block is included with each Collector. The connector

block plugs directly into the 50-pin Amphenol connector on the side of the

Collector. Up to 4 Collectors, including the internal Collector within the VER-2037

Concentrator, can be connected from one to another in a daisy-chain

configuration.