MCT-501
SMARTHOME #73951
Installation Instructions
Advanced Acoustic Sensor / PowerCode Transmitter
1. INTRODUCTION
The MCT-501 combines two modules:
When mounted on opposite wall or adjoining walls, the range is
6 m (20 ft) for plate, tempered, laminated and wired glass.
• The Sentrol Inc. ShatterPro™ acoustic sensor with Pattern
Recognition Technology™ (Protected under U.S. Patent
5,192,931)
When mounted on the ceiling, the maximum range is 6 m (20 ft)
for plate, tempered, laminated and wired glass
For armor-coated glass, mount the sensor no more than 3.65 m
(12 ft) from the glass.
• The Visonic Ltd. MCT-302 PowerCode™ transmitter
1.2 PowerCode Transmitter
The acoustic sensor shares its housing with
a
miniature
transmitter which has a unique 24-bit PowerCode ID, selected in
the factory from over 16 million possible code combinations.
Upon alarm (glass break detection), a digital message is
transmitted, composed of the PowerCode ID followed by various
status and message-type markers. Alarm and other data are thus
forwarded to the wireless alarm control panel.
Since transmitted messages might collide with transmissions
from other PowerCode transmitters used in the system, a smart
anti-collision transmission sequence is used.
Figure 1. General View
Figure 2. Module Identification
1.1 Acoustic Sensor
The MCT-501 is protected by a tamper switch that is activated
when the cover is removed. In a tamper situation, a message is
transmitted with the “tamper alert” marker ON.
The acoustic sensor module of the MCT-501 is omni-directional,
providing 360° coverage. Coverage is measured from the sensor
to the point on the glass farthest from the sensor (see Fig. 3). The
sensor can be mounted as close as 1 m (3.3 ft) from the glass.
A periodic supervision message, distinguished by a specific
marker, is transmitted automatically once in 60 minutes. The
wireless control panel is thus informed, at regular intervals, of the
sensor’s active participation in the system.
A red LED mounted on the transmitter PCB (visible only when the
cover is off) lights whenever alarm or tamper events are reported.
The LED does not light while a supervision message is being
transmitted.
Operating power is obtained from an on-board 3.6 V Lithium
Thionyl Chloride battery. A weak battery will cause a “low battery”
marker to be added to any message transmitted.
Figure 3. Typical Range Measurement
2. SPECIFICATIONS
ACOUSTIC SENSOR SECTION
POWER SUPPLY
Power Source: 3.6 V Lithium Thionyl Chloride (LiSOCl2) battery,
size 1/2 AA, Tadiran TL-5902 or equivalent.
Nominal Battery Capacity: 1.2 Ah
Current Drain: 24 µA standby, 13 mA on alarm (including LED)
Battery Life (with LED on):
Microphone: Omni-directional electret
Alarm Duration: 4 seconds
RF immunity: 20 V/m, 1 MHz to 1000 MHz
Temperature range: -10° to 50°C (14° to 120°F)
Recommended Glass Size:
Minimum: 0.3 x 0.6 m (1 x 2') or larger glass thickness
@ 10 transmissions per day: Over 10 years
@ 50 transmissions per day: About 6 years
Plate: 2.4 to 6.4 mm (3/32 to 1/4")
Tempered: 3.2 to 6.4 mm (1/8 to 1/4")
Wired: 6.4 mm (1/4")
Battery Supervision: Automatic transmission of battery condition data
as part of any status report.
PHYSICAL
Laminated: 3.2 to 6.4 mm (1/8" to 1/4")
Operating Temperature: 0°C to 49°C (32°F to 120°F).
Dimensions: 80 x 108 x 43 mm (3.13 x 4.24 x 1.70 in.).
Weight (less battery) : 130 g (4.6 oz)
Housing Material and Color: Flame retardant ABS, white
Standards: Meets FCC Part 15, ETS 300-220 and MPT1349
POWERCODE TRANSMITTER SECTION
Frequency (MHz): 315, 404, 418, 433.92 or other frequencies
according to local requirements.
Transmitter's ID Code: 24-bit digital word, over 16 million
combinations, pulse width modulation.
Overall Message Length: 36 bits
Message Repetition: One-shot transmission (default) or once
every 3 minutes.
The 418 & 433.92 MHz models of this device comply with the
European Council Directive EMC 89/336/EEC & 92/31/EEC, and
bear the CE mark and certification.
Supervision: Signaling at 60-minute intervals (U.S. version) or
15 minute interval (UK version)
Response to Tamper Event: Tamper report every 3 minutes
(until the tamper switch is restored).
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The tamper message transmitted as a result (the transmit
LED blinks) will do the job.
3.4 ID Enrollment and Mounting
Note: It is much easier to enroll the transmitter ID while holding
C. Use the base as a template - press it against the wall at the
selected mounting position and mark the drilling points
through the mounting holes. Drill two holes and attach the
base to the wall using the wall plugs and screws.
the MCT-501 in your hand, close to the control panel.
A. Refer to the control panel’s or PowerCode receiver’s
installation instructions for enrolling transmitter IDs.
B. When required to initiate a transmission for enrolling the
D. Align the cover with the base and push it until it snaps shut.
transmitter’s ID, press the unit’s tamper switch and release it.
4. TESTING PROCEDURES
D. If the LED does not go solid, but continues flashing as before,
re-position the sensor closer to the protected windows and
retest. This may require adding sensors in order to achieve
adequate coverage. It is very rare that the sensor will not
activate within its stated range of coverage. Double check
adequate battery strength in the hand-held tester. A new
tester battery will likely restore the range.
4.1 How Does the Test Mode Works
The Pattern Recognition Technology™ of the MCT-501 ignores
most false alarm sounds, including glass-break testers. In order
to test the MCT-501, a test mode is used. With the sensor in the
test mode, processing of the glass-break pattern in the upper and
lower frequencies is disabled. The MCT-501 is then sensitive only
to the mid-range frequencies which the Sentrol 5709C hand-held
tester reproduces. It's the mid-range frequencies that determine
sensor coverage.
Note: The sensor will automatically change from test mode to
normal mode approximately one minute after the last signal
received from the hand-held tester.
IN THE NORMAL MODE THE DETECTION LED FLASHES BRIEFLY
UPON RECEIVING A LOUD SOUND. WHEN IN THE NORMAL
MODE, THE MCT-501 WILL NOT TRIP TO THE TESTER’S SIGNAL,
UNLESS THE TESTER IS HELD NEXT TO THE SENSOR.
IMPORTANT! Room acoustics can artificially extend the
range of a glass-break sensor. The specified range of the
MCT-501 has been established for worst-case conditions.
While the sensor is likely to function at additional range, it
may miss a “minimum output” break, or room acoustics
may be changed at some future time, restoring sensor
coverage back to the normal range of 6 m (20 ft).
NOTE: Each time the sensor alarms it also goes into the TEST mode
for one minute.
4.2 Switching the Sensor to the Test
Mode
Do not exceed the rated range of the sensor, regardless of
what the tester shows.
Use the Sentrol 5709C or the Intellisense FG701 hand-held tester
to switch the sensor into the test mode. Set the tester to
tempered glass, hold the tester speaker directly on top of the
sensor and activate the tester. The sensor will alarm, then it will
go into test mode for one minute. When in test mode the LED on
the sensor will flash continuously. prolong the test session by
firing the tester at the sensor at least once a minute.
4.4 Hand Clap Test
The MCT-501 can be checked by the installer or end user while
in normal mode, simply by clapping hands loudly under the
sensor. The LED will flash twice, but the sensor will not trip. This
verifies visually that there is power to the sensor, and that the
microphone and circuit board are functioning.
4.3 Testing the Sensor (see Figure 10).
The hand clap activation is only momentary, so there is no
appreciable effect on battery life.
A. Holding the tester near the surface of the glass, aim the tester
at the MCT-501 and press the test button. If drapes or blinds
are present, test with the hand-held tester behind the closed
drapes or blinds (do not install the sensor where heavy or
lined drapes are used). If the sensor is mounted on same wall,
point the tester at the opposite wall.
INSTALLATION TIPS
A. The MCT-501 is designed to detect the shattering of framed
glass mounted in an outside wall. “Testing" the sensor with
unframed glass, broken bottles, etc. may not trip the sensor.
The MCT-501 typically does not trip to glass break tests in
the middle of a room as such breaks are false alarms.
B. False alarms are most likely to occur when installed on a
24-hour loop in glass airlocks and glass vestibule areas, when
mounted above sinks, when used in residential car garages
and in other small, acoustically live rooms and rooms where
multiple sounds can reflect and eventually duplicate the glass
break frequency pattern. For occupied area glass break
protection in such applications, use shock sensors.
C. Installing the MCT-501 on 24-hour loops will increase false
alarms. The MCT-501 is recommended for perimeter loops
and is designed to function without false alarms in occupied
areas. On a 24-hour loop, which is armed all day/all night
every day, the false alarm technology will be pushed to its
limit since some sounds in some conditions can duplicate the
points on the glass break pattern that the MCT-501 detects.
Install the MCT-501 on a perimeter loop, which is armed
whenever the door and window contacts are armed. For
occupied area installations, MCT-501 's false alarm immunity
is best in rooms with only moderate noise.
Figure 10. Testing the MCT-501
B. The tester has a different setting for each type of glass. It
should always be set for tempered or laminated glass (either
is correct and both have the same range) unless you are
certain that all the protected glass is plate glass.
D. MCT-501 detects the shattering of glass. Like all glass-break
sensors, it may not consistently detect cracks in glass, or
bullets that break through the glass or break out the glass.
Glass-break sensors should always be backed up by interior
protection.
C. When the LED on the sensor goes solid momentarily while the
tester is triggered, the glass is within detection range.
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Order#73951
5. MISCELLANEOUS COMMENTS
Visonic Ltd. wireless systems are very reliable and are tested to
high standards. However, due to their low transmitting power and
limited range (required by FCC and other regulatory authorities),
there are some limitations 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 repeater can only respond to one transmitter signal at a time.
C. Wireless equipment should be tested regularly to determine
whether there are sources of interference and to protect
against faults.
The digital circuitry of this device has been tested and found to
comply with the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in residential installations.
This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio and television
reception. However, there is no guarantee that interference will not
occur in a particular installation. If this device does cause such
interference, which can be verified by turning the device off and on,
the user is encouraged to eliminate the interference by one or more
of the following measures:
This device complies with FCC Rules, Part 15. Operation is
subject to two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference
that may be received or that may cause undesired operation.
– Re-orient or re-locate the receiving antenna.
– Increase the distance between the device and the receiver.
– Connect the device to an outlet on a circuit different from the one
which supplies power to the receiver.
WARNING! Changes or modifications to this unit not expressly
approved by the party responsible for compliance could void the
user's authority to operate the equipment.
– Consult the dealer or an experienced radio/TV technician.
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