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    About hinge and lock

    Font Size:big - mid - smallepuwei   Release time 08-05-30 14:36     view:1458   comment:0   source:

    In addition to a larger number of standard mortise-hinge sizes and duty designs, many more pivot and continuous-hinge designs are available for every application, inside and out.

    One special application example is the newly announced heavy-duty mortise hinge that has been approved for use in South Florida hurricane-prone areas where building codes are very demanding. It features heavy-gauge steel construction, five knuckles, and oil-impregnated bearings on which the knuckles rotate.

    Door hardware and accessory vendors now are offering a much broader range of products: access-control products and identification capability, such as facial recognition, 10-fingerprint ID systems; visitor and asset management; closed-circuit video systems; digital recording; intrusion detection for both the perimeter and interior; and PC-controlled systems with the capability of storing hundreds of identities and thousands of events.

    Additionally, many new magnetic-switch-operated locks, motion sensors, and panic devices are on the market that alert a central location or off-site police station. These electronic devices are powered by either stand-alone battery supplies or low-voltage power supplies with battery backup to enable continued operation, even in case of power failure.

    Managers also have more high-security locks from which to choose during specification. Keys for high-security locks are made from blanks that are not available at local locksmiths or hardware stores, making unauthorized duplication more difficult.

    New 12- and 24-volt DC access hardware power supplies eliminate the need for separate power supplies for locks and access controls. These locks also feature battery backup and fire-emergency release input.

    The standalone category of locks offers additional examples of innovation. A new door check features a self-contained proximity reader and PIN pad. Proximity cards, PIN codes and key holder codes are entered or erased with a master card or master PIN. The manager can use it three modes: proximity card only, PIN only, or both card- and PIN-actuated.

    This check has capacity for 400 users, a reading range of 6 inches, tamper alarm, and two relay outputs. Other models offer features similar to hard-wired models. They are: keypad programmable or computer controlled; have a 1,600-event history, a 150,000-cycle battery life, and a low-battery alarm; and offer nine master group levels, 90 user groups, and 1,800 preprogrammed events.

    Its programming and event-history capability tracks 200 locksets and transfers information over a secure infrared data transmission device. This unit is also ADA compliant.

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