Piezo actuator firm Servocell las launched a new addressable Active Latch – AL1d.
The product is an addressable low power, latching module for use in a range of access control applications such as lockers, mailboxes, machinery guards, filing cabinets, and more, the makers say. A 64-bit factory lasered registration number is built into each unit. These devices can then connect to the Dallas 1-Wire1 (MicroLAN) network topology without any additional components, allowing individual control over each module. The low power consumption of the AL1d, the makers say, permits a flexible inter-connection of hundreds of devices that can be operated and controlled on the same loop. The instruction sets can be delivered through any appropriate medium, such as a Local Area Network, the internet or via common wireless protocols, it is claimed. When the delivery is via the LAN there is no need for additional power cabling. The use of existing cabling infrastructure is attractive, the makers say, particularly for retrofit implementation or low cost installation for new facilities, and battery-based versions can offer extremely good service life. This move means that the security of the system is greatly increased, it is claimed, as the latch will simply not function without the necessary code. Such a high level of security also makes it practical for the lock supervision function to be administered from a remote site, permitting facilities managers to save money through outsourcing.
What they say
“Independent control of great numbers of lock would normally require a dedicated wire for each and the wiring alone would rapidly become bulky, complex and costly,” says Simon Powell, business development manager at Servocell. “With the new AL1d and its 64-bit unique built-in address each lock can be controlled by a simple bus connection.” Modern access control systems often require network capability for applications such as sophisticated biometric identification on a powerful server or checking identity with a remote database via the Internet, the firm adds. In such systems the high current requirements of solenoids or motor driven locks were a serious bottleneck, making systems unwieldy and expensive, it is claimed. “With an AL1d network, that can be integrated with network-based sensors and controls for heating and lighting, we are closing the gap to provide adaptive, intelligent buildings,” says Powell. The product is compatible with other 1-Wire devices including iButton 1 products for robust personal identification and data storage. By using a 1-Wire proxy server TCP/IP connectivity can be provided. With an additional 1-Wire adapter the AL1d can also be controlled by PCs, handheld computers or PDAs. Servocell offers the developer kit SKT4 containing 3 AL1d modules, connecting cables, interfaces and operating instructions to allow users to develop their own network solution. To find out more about the kit e-mail [email protected]
