In this month's electronics column, Ledger contributing editor Tim O'Leary writes about some the newest electronics products to catch his eye: the Altronix HubWay™, Altronix StrikeIt™, ISONAS IP Proximity Reader Controllers and Locknetics 672 REX TouchBar. Information is also included on a new...
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The #672 REX TouchBar is a reliable low profile and cost effective non-latching releasing device. It is used to release a electromagnetic locking device, but may be used for other purposes. The unit is available with either a single pole double throw (S.P.D.T) or double pole double throw (D.P.D.T.) switch output. By specifying the D.P.D.T. version, the designer has the option of either interrupting both sides of the circuit to the locking device, or use one set of contacts to interrupt power to the electromagnetic lock, and the other to trigger the REX input on the access controller to provide a signal for legal egress, suppress forced door alarms and erroneous messages on the activity log, or on the system alarm monitor screen, if the system is being monitored remotely.
Before installing the #672, obtain the approval of your Local Authority Having Jurisdiction (LAHJ).
A means to bring the switch circuits off the moving door to the controller and other system elements will be required for the installation. Typically this will be by means of a door loop, wired hinge or power transfer device. The type and specifications of the device selected will be determined by the installation environment, and the electrical requirements of the application.
Locknetics also offers a model #692 TouchBar which offers additional features which we reviewed in a previous issue.
Locknetics has gone through some changes in these products since they were first introduced, however the changes have not been in the switching technology, but rather in the feature set and placing the product in the most advantageous price point.
By surveying your site proper to ordering, it is possible to order the #672 so that it will require a minimum of field engineering/prepping during the installation. For example the bar may be provided properly handed for your project, although it is possible to change the hand of the device on-site.
As mentioned, the standard single pole switch can be upgraded to the double throw.
The bare finish can be specified. The bar length can be pre-ordered (for example for a 36"; 42" or 48" doors, or even for special sizes). Extra long cables or armored cords are available.
The pushpad on the #672 can be provided with or without lettering. Choices include black pushpad with white, red , green or glow-in-the-dark letters or with NO lettering.
An optional WD sex-nut installation kit is available for installing the #772 on wood or hollow metal doors.For more information, call 866-322-1237 or visit www.locknetics.com.