Visonic mct-241 User Manual

MCT MCT-241 MCT MCT -241 -241 -241
Pendant Transmitter
1 1 1 1 . INTRODUCTION . INTRODUCTION . INTRODUCTION . INTRODUCTION
The MCT-241 is a PowerCode
controlled personal UHF transmitter. It is designed to transmit
coded alert signal in distress or in other emergency situations.
The transmitter is waterproof and suitable for wearing in a
shower.
The transmitter is activated by depressing the recessed oval
pushbutton at the center of the unit (see Fig. 1). A built-in timer
determines the transmission time to 3 seconds, even if the user
maintains the transmission button depressed shorter or longer
than that.
When triggered, the transmitter transmits a unique, factory
programmed, randomly selected 24-bit digital alarm code. This
code is selected from 16 million possible codes and is therefore
unique and virtually impossible to reproduce.
Operating power is obtained from an internal 3V Lithium battery.
A red LED (see Fig. 1) lights steadily during the transmission,
giving reassurance to the user and indicating that the battery
condition is good. If the LED flashes each time the transmitter is
activated, it indicates that the battery voltage is low and must be
replaced as soon as possible.
The transmitter case is sealed (no screws) to enable the
waterproof feature. Therefore, battery replacement can only be
done in the factory.
If the transmitter is activated while the battery voltage is low, a
'low battery' alarm code is transmitted. If the transmitter is not
activated for a long period, the battery is self-tested every 12
hours. After three consecutive "low battery" states, a supervisory
'low battery' alarm code is transmitted.
The transmitter is supplied with two wearing accessories, a neck
cord (to be worn around the neck - see figure 2) and a clip (to be
attached to the user belt or shirt pocket - see figure 3).
The neck cord includes a built-in safety release mechanism. This
neck cord must never be replaced with a cord that does not
include a safety release.
2 2 2 2 . SPECIFICATIONS . SPECIFICATIONS
. SPECIFICATIONS . SPECIFICATIONS
Frequency (MHz): 868.95
Frequency Tolerance: ± 120 kHz
Channel Bandwidth: 500 kHz
Transmitter Output Power: <10 dBm
Modulation: A.S.K (on-off keying)
Encoding: Factory programmed, 24-bit digital word
Transmission Duration: 3 seconds (even if the user keeps the
transmission button depressed shorter or longer than that)
Power Supply: 3 V CR-2 type Lithium battery
Battery Life Expectancy: Up to 7 years, based on one
transmission per day
Battery Condition Indication and Reporting:
A . Good battery - the LED lights steadily upon transmission.
B . Low battery - when transmission button is pressed, "low
battery" alarm code is transmitted and the LED flashes.
DE2276U
TM
miniature, microprocessor-
Figure 1 - Using the MCT-241
*
An alarm system with PowerCode
POWERMAX, MCR-308, EXP-1600W, etc.), in which the RFR-4
receiver module is installed.
figure 2 - MCT-241 with Neck Cord
Figure 3 - Clip Attachment
C . Battery self-test and reporting - every 12 hours and if 3
consecutive "low battery" states are detected, a "low
battery" alarm is transmitted.
Operating Temperature: 0° to 50°C (32°F to 122° F)
Dimensions (H x W x D):
With Clip: 73 x 41 x 30 mm (2-7/8 x 1-5/8 x 1-3/16 in.)
Without Clip: 67 x 41 x 21 mm (2-5/8 x 1-5/8 x 13/16 in.)
Weight: 35 g (with clip), 30 g (without clip)
Color: Gray
Compliance with Standards: ETS 300 683, EN300220
This device complies with the essential requirements and
provisions of Directive 1999/5/EC of the European Parliament and
of the Council of 9 March 1999 on radio and telecommunications
terminal equipment.
User's Guide
TM
receiver or interface (like
1