Infant Protection Bracelet
User Guide
Part Numbers: 5-BTC00433-A, 5-BTC00433
Elpas
Active RFID Solutions
Page 1 of 4
BTC03U01
General Overview
The Elpas Infant Protection Bracelet from Visonic Technologies (VT) is a rechargeable
miniature, unified active long-range Radio Frequency (RFID) and Infrared device. The
bracelet provides 24/7 infant protection by tracking the real-time location of newborns in
maternity wards and by generating mother-baby mismatch alarms.
The Infant Protection Bracelet is comprised of a
rechargeable tag and a disposable, anti-tamper,
adjustable band made of skin-safe non-latex
materials that can be retightened should the baby
loose weight. When worn by the newborn, the
bracelet automatically transmits removal alert
notifications for keeping facility personnel informed
of deliberate or accidental tampering and/or removal
of the baby from the protected area.
The bracelet’s all-in-one, dual technology transmitter
continuously emits low power, beacon type radio
frequency (RF) messages as well as safe, supplemental infra-red (IR) messages that
identifies the exact real-time location of the new born infant This same RF/IR technologies
also continuously broadcasts the operational status of the tag (such as whether the tag is
moving or at rest, it’s battery state and the condition of its tamper wire). The bracelet's
onboard magnetic low frequency (LF) receiver adds chokepoint area detection so whenever
the new born infant nears a prohibited exit/entrance covered by an Elpas LF Exciter a
security intervention alarm is raised.
Made of tough ABS thermoplastic, the Elpas Infant Protection Bracelet is shower and bath
proof as well as temperature stable. Small in size and weight (39.4mm long, 31.5mm wide
and 14.8mm thick) is rechargeable and includes LED visual indicators that illuminate
whenever the bracelet transmits and/or when a low battery condition exists.
CAUTION:
It is important that you read, understand, and follow the
instructions in this document. If you have questions, call your local Visonic
Technologies support representative.
This document is intended for trained system integrators, field service or
maintenance engineers that need to troubleshoot problems in the EIRIS
system, or configurations and processes.
Tamper Transmissions
Transmission Rate:
Single burst of 4 IR/RF transmissions (each lasting @ 2ms) and the total burst time
not exceeding 1 second.
Event Transmission Rates in LF Zones
Moving Bracelet
LF Response Time:
Onboard LF receiver activates every 0.6 seconds to check if the tag is in a LF zone.
Transmission Rate:
Continuous bursts of 4 messages (each lasting @ 2ms), with intervals of 400ms.
Transmitted Message Type:
IR/RF Data Message includes ID code of LF Exciter.
Motionless Bracelet
LF Response Time:
Onboard LF receiver activates every 15 seconds to check if the tag is in a LF zone.
Transmission Rate when in LF
: Continuous bursts of 4 messages (each lasting @ 2ms),
with intervals of 400ms.
Transmitted Message Type
: IR/RF Data Message includes ID code of LF Exciter.
Comments on IR Signaling
Attaining the maximum IR reception range depends mainly on direct line of sight between the transmitter
and the receiver. Nevertheless, certain environments allow the signal to reach the receiver in a roundabout
path, by reflection or refraction of the infrared radiation. Tiled floors (uncarpeted), walls, smooth ceilings
(not too high) can reflect IR signals reasonably well, and allowing them to be received even when the
radiating source is pointed away from the receiver. With good indirect reflection path, a range of 5 - 6m
(15 - 18ft) is expected (with poor reflection, the range gets even shorter). The user is therefore strongly
advised to point the transmitter directly at the nearest receiver or, if the location of the nearest receiver is
unknown, to press the transmit button several times while pointing the transmitter in different directions.
It is strongly recommended not install IR receiver outdoors, facing direct sunlight, or near fluorescent
lamps, to prevent interference to IR reception.
The installer is encouraged to test the reception range in the various zones and to install additional
receivers if necessary.
Comments on Radio Signaling
Some limitations have to be considered.
A. Receivers may be blocked by radio signals occurring on or near their operating frequencies,
regardless of the code selected.
B. A receiver can only respond to one transmitted signal at a time.
C. Wireless equipment should be tested regularly (at least once a week) to determine if there are
sources of interference and to protect against faults.