Going Wireless with OSI's Wireless Access Management System

OSI's WAMS readers are the first battery- powered standalone access control systems capable of real-time remote access control management.


The OSI WAMS devices communicate with the host computer via Portal Gateways. Portal Gateways provide bi-directional communication between the WAMS and the host computer. Communications are via secure AES 128-Bit encrypted 2.4 GHz using spread spectrum RF Radio technology. According to OSI Security Devices, the typical range averages 150 feet to a clear line of sight of 300 feet between a Portal gateway and a reader lock. Directional antennas are available to extend the range of the gateway to over 1,000 feet. Portal Gateways are DC-powered and are connected to the Host computer using a Local Area Network (LAN) connection.

Table 1. WAMS Storage Capability
ID Capacity
Transaction Capacity
2,000 users
89,594 events
10,000 users
80,867 events
20,000 users
72,656 events
32,000 users
59,049 events
65,000 users
20, 867 events

Communication from the Portal Gateway to the WAMS Device is always wireless, but communication between the Host computer and the Portal Gateway may be established in several ways:

The Portal Gateway may be connected to the host computer using an Ethernet 10/100 Base T crossover cable.

The Portal Gateway may be connected to the host computer using an existing Ethernet 10/100 Base T wired network backbone. At locations where WAMS devices are installed, the end user may connect a Portal Gateway to their network in a convenient network closet or conceal the Portal in a raised ceiling.

The Portal Gateway may be connected to the host computer using an existing approved 802.11 B/G wireless backbone. At locations where WAMS devices are deployed, the end user may connect the Portal to the network output of a Wireless 802.11 B/G router.

One Portal Gateway can interact with up to 128 WAMS devices. The basic Portal Gateway is factory configured to control up to 16 WAMS devices. However each Portal Gateway can be upgraded to control 32, 64, or 128 devices. Like the WAMS Readers, expansion of the Portal Gateway's capacity of WAMS devices only requires upgrading the firmware using a software-entered key.

Note: Portal Gateways continuously run a Statistics Monitor software application that has built-in diagnostics to monitor signal strength, battery voltage, data packet integrity, in addition to allowing wireless reader and firmware support. Any detected irregularities are immediately reported back to the host computer.

Portal Gateways can be ordered with a number of options including tamper alarm, AC power failure detection, Fire Alarm or Weather Alert Shutdown, 12VDC lead-acid battery backup, low battery charge rate, and/or low battery alarm.


The OSI Wireless Access Management System (WAMS) is an SQL-server application that uses the latest available software tools and utilities such as .NET Framework. The WAMS software incorporates three system software tools: the WAMS Configurator, WAMS Transactions, and the WAMS Statistics Monitor.

The WAMS Configurator Software is the WAMS system administrator's Graphic User Interface, or "Gooey." Four primary menus on the taskbar of this software application allow end users to tailor their access control system. The menus are as follows:

Readers: This menu allows users to create a facility tree of readers and portal gateways. The facility tree provides a visual image of how the WAMS equipment is interacting and operating. As new portals and readers are added to the system, the system demonstrates true "plug-and-play" functionality, offering the end user the ability create locations and drag-and-drop new readers and portals where they belong within the facility tree.

Facility: This software menu allows end users to organize their facility database. Separate User Groups may classify users; specific Card data may be identified as required, and new facilities may be created within the software.

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