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The PowerCode message transmitted by the MCT-100 includes
the 24-bit ID of the input of origin and a status report (see Fig. A1).
Figure A1. Transmitted Data
A message includes the following data:
• Input ID: The 24-bit ID of the input sending the message.
• Tamper / Restore: Upon removal of the unit's front cover,
Input 1 will send out a message with a "tamper marker" set to
ON. If the unit's cover is put back, Input 1 will initiate a
message with the tamper marker OFF ("Tamper Restore").
• Alarm / Restore: Once the input loop is disturbed, a message
will be transmitted with an "Alarm marker" ON. Upon restoral
of the input loop, a message will be transmitted with the alarm
marker set to OFF (provided that restore transmission is
desired - SW-3 has been set to ON - see Para. 3.3.).
•
Low Battery: A special battery condition marker is used to
report the battery status in any message. The battery is tested
once an hour and if found low, Input 1 will initiate a message
in which the "Low Battery” marker is set to ON. This marker
will be ON in all messages that follow, whatever the cause
for transmission. Once the battery is restored to normal, this
marker will be OFF in all messages that follow (“Battery
Restore”).
• Supervision Message: A special "supervision message”
marker, when set to ON, identifies the periodic supervision
messages transmitted automatically at 1 hour intervals. This
marker will be OFF in all other messages.
• Transmitter Type: A special marker indicates the type of the
transmitter:
Supervised or non-supervised
Reports or does not report restorals after alarm
• Checksum: Checksum bits at the end of the message allow
the receiver to determine whether an incoming message is
valid (error-free). This feature considerably upgrades the
reliability of the wireless communication link.
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To overcome message collisions at the receiving end, Power-
Code transmitters transmits 3 data bursts at random intervals,
with 6 repetitions of the same message in each burst (Fig. A2).
This redundancy improves the probability of reception.
Note: Periodic supervision messages are an exception to this
rule - they consist of a single 6-message burst.
Figure A2. Anti-Collision Transmission Sequence
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Visonic Ltd. and/or its subsidiaries and its affiliates ("the Manufacturer") warrants its
products hereinafter referred to as "the Product" or "Products" to be in conformance with
its own plans and specifications and to be free of defects in materials and workmanship
under normal use and service for a period of twelve months from the date of shipment by
the Manufacturer. The Manufacturer's obligations shall be limited within the warranty
period, at its option, to repair or replace the product or any part thereof. The Manufacturer
shall not be responsible for dismantling and/or reinstallation charges. To exercise the
warranty the product must be returned to the Manufacturer freight prepaid and insured.
This warranty does not apply in the following cases: improper installation, misuse,
failure to follow installation and operating instructions, alteration, abuse, accident or
tampering, and repair by anyone other than the Manufacturer.
This warranty is exclusive and expressly in lieu of all other warranties, obligations or
liabilities, whether written, oral, express or implied, including any warranty of
merchantability or fitness for a particular purpose, or otherwise. In no case shall the
Manufacturer be liable to anyone for any consequential or incidental damages for breach
of this warranty or any other warranties whatsoever, as aforesaid.
This warranty shall not be modified, varied or extended, and the Manufacturer does not
authorize any person to act on its behalf in the modification, variation or extension of this
warranty. This warranty shall apply to the Product only. All products, accessories or
attachments of others used in conjunction with the Product, including batteries, shall be
covered solely by their own warranty, if any. The Manufacturer shall not be liable for any
damage or loss whatsoever, whether directly, indirectly, incidentally, consequentially or
otherwise, caused by the malfunction of the Product due to products, accessories, or
attachments of others, including batteries, used in conjunction with the Products.
The Manufacturer does not represent that its Product may not be compromised and/or
circumvented, or that the Product will prevent any death, personal and/or bodily injury
and/or damage to property resulting from burglary, robbery, fire or otherwise, or that the
Product will in all cases provide adequate warning or protection. User understands that a
properly installed and maintained alarm may only reduce the risk of events such as
burglary, robbery, and fire without warning, but it is not insurance or a guarantee that such
will not occur or that there will be no death, personal damage and/or damage to property
as a result.
The Manufacturer shall have no liability for any death, personal and/or bodily injury
and/or damage to property or other loss whether direct, indirect, incidental,
consequential or otherwise, based on a claim that the Product failed to function.
However, if the Manufacturer is held liable, whether directly or indirectly, for any loss or
damage arising under this limited warranty or otherwise, regardless of cause or origin, the
Manufacturer's maximum liability shall not in any case exceed the purchase price of the
Product, which shall be fixed as liquidated damages and not as a penalty, and shall be the
complete and exclusive remedy against the Manufacturer.
Warning: The user should follow the installation and operation instructions and among
other things test the Product and the whole system at least once a week. For various
reasons, including, but not limited to, changes in environmental conditions, electric or
electronic disruptions and tampering, the Product may not perform as expected. The user
is advised to take all necessary precautions for his /her safety and the protection of
his/her property.
6/91
VISONIC LTD. (ISRAEL): P.O.B 22020 TEL-AVIV 61220 ISRAEL. PHONE: (972-3) 645-6789, FAX: (972-3) 645-6788
VISONIC INC. (U.S.A.): 10 NORTHWOOD DRIVE, BLOOMFIELD CT. 06002-1911. PHONE: (860) 243-0833, (800) 223-0020. FAX: (860) 242-8094
VISONIC LTD. (UK): UNIT 1, STRATTON PARK, DUNTON LANE, BIGGLESWADE, BEDS. SG18 8QS. PHONE: (01767) 600857 FAX: (01767) 601098
VISONIC LTD. 1998 MCT-100 D-2241-0 NEW: DE2241- (REV. 1, 4/98)
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