User's Manual
4
1.0 VL4B Module
1.1 Description
The VL4B Module is an infrared transmitting badge with a RF supervisory signal. The VL4B Module contains a
low power RF transmitter chip which is controlled by a micro processor. The frequency synthesizer for generation
of the RF output carrier is received from a low frequency external crystal. A crystal resonator chip runs the micro
processor device. When an RF transmission needs to be generated the data from the microprocessor is sent to the RF
chip. The modulation used by the radio frequency chip is on/off key at 433.92MHz. The RF antenna is a PCB
etched loop. The VL4B is powered by a three-volt battery.
Both infrared and RF signals are independent of each other. Both infrared and RF signals contain recognition code
to identify the badge, along with motion status, battery status, and switch information.
There are two ways that theVL4B Module can send RF transmission packets. The first is an automatic transmission
per FCC regulations section 15.231 part (a) paragraph three, which states that the periodic rate of transmission does
not exceed one transmission of not more than one second duration per hour of each transmitter. The second type of
RF transmission occurs when a button is pressed on the badge. The RF transmission packets cease operation when
the button is released.
1.2 Battery Replacement
The VL4B is powered from a 3V battery. The battery is replaceable. To replace battery, open the case, remove the
old battery, and replace with a new battery noting its polarity. The negative side of the battery should be facing the
PCB.
1.3 FCC and IC
VL4B Module
Responsible Party Pertaining to the Declaration of Conformity
Fleetwood Group, Inc.
11832 James Street
Holland, MI 49424
Attn: Product Service Coordinator
Phone: 888-467-3759
1.4 Standards and Guidelines
This device complies with the following USA/Canada Regulations:
The USA Federal Communications Commission (FCC) Rules and Regulations
Industry Canada Rules and Regulations
This device complies with the following national and international standards:
FCC Part 15B, 15.231e (10-01-09)
IC RSS-210 Issue 7