The introduction of supervision cleared the way for wireless in electronic security and has resulted in wireless almost taking over the industry. The typical alarm system is essentially wireless. Alarm controls are either standalone consoles or alarm panels with separate keypads. In the case of the console, an external low voltage power supply will require a wire and maybe a connection to a phone line for central station reporting. But phone lines are being supplanted by cellular alternatives and the connection between the console and the transceiver may be wireless.
For alarm panels with external keypads, usually a master keypad requires hard wiring, and power is required. Line carrier X-10 may be used to send a local alarm signal to a siren module. Other line carrier and proprietary wireless network standards are competing for market share. Some will win, some will lose, pick incorrectly and you’ll sing the blues.
The supervision feature has achieved UL listing and approvals and has revolutionized the industry.
Security: Along with supervision, encryption is used to prevent signals to be intercepted, for erroneous signals to create false alarms or for other disruption of data to occur.
Encryption is used in networking, wired and wireless, as well as over hard-wired infrastructures. If the protocol being used is not in itself proprietary, additional encryption is used to scramble the data.
User Acceptance: These days, customers are demanding wireless. Demand for wireless is an important market driver, and since everyone sells it, offering wireless is not a differentiator unless you don’t offer it! Whereas old school used to mean you were a hard-wired guy, now it is more likely to refer to your favorite WAP protocol like which flavor of 802.11 you use, or if you’ve graduated to Zigee or Bluetooth.
Besides wireless alarms, I use wireless extensively for remote door controls to trigger door operators or for receptionists to unlock entry doors. I also use wireless door bell systems which require virtually no labor to install and my customers love to select the chime tone.
For access control, wireless credentials permit hands free entry control, particularly appealing for vehicle entry applications. The credentials are Wiegand encrypted, and offer the same level of security and ability to be controlled and tracked as are traditional Wiegand credentials.
STI-INTERNATIONAL Wireless Chime
This musical wireless doorbell chime (Model STI-32500) is easy to install, with no electrical wiring and no expensive through-the-wall drilling. Installation is as easy as mounting the button on the exterior of the door and plugging the receiver unit into any indoor electrical outlet in range. To extend coverage to more rooms, purchase additional receiver units that can be plugged into any room within 250 feet of the transmitter.
You can distinguish between front and back doors by adding more transmitters and programming a different tune on each. Thirteen sounds can be selected with the push of a button on each transmitter. For security, 32 individual codes protect against outside interference. Unit is FCC certified. Two 3-volt lithium batteries for transmitter, included.
Information: www.sti-usa.com .
HIDGLOBAL ProxPass® II Active Tag
The ProxPass® II is an active tag specifically designed for vehicle access control that is competitively priced as compared to VHF vehicle tags. It provides convenient access control for parking and fleet management applications.
ProxPass II is an ideal augmentation to an existing or new HID proximity installation. The ProxPass II can be encoded with any HID format and numbering system used by HID proximity cards, including the Corporate 1000 format. A cross-reference list correlating the external card number and the programmed ID number provides easy system administration. It is compatible with MaxiProx® reader and all HID card formats and provides up to six foot read range.
Additional features include:
Access door on credential permits convenient battery replacement.
Dual battery design and low current draw allows two to five years with typical usage. (Replaceable battery).
Two- to five-year battery life, depending on usage.
Velcro backing attaches easily to interior of vehicle windshield.
More than 137 billion unique codes.