VP-II™ S is a derivative product of the VP-II M, designed for use in stand-alone mode. It does not have its own networking functions but provides a variety of interface functions to external devices or external systems such as RF or smart card systems or other security system backbones. Instead of using Techsphere's own proprietary network, S can easily be integrated to existing security system backbones, card-based security networks, or external servers. Thus in some sense, S is very versatile in configuration. The basic concept of S machine is to help 3rd party or VAR integrate hand vascular biometric technology in existing conventional access control or T&A systems or applications. The interface functions are designed simple and straightforward. The basic interface provided by S is through Wiegand/RS232.

S has two major targeted applications. Firstly, as a stand-alone system, S can effectively penetrate mid and small-scale biometrics market, where the price barrier of VP-II M has caused difficulty in market penetration. The second application is to use S as vascular pattern verification terminal within a large scale secure access control/time and attendance system by integrating S into the backbone network. In this type of application, the personal vascular data are typically store in external server or storage capable cards. In order to be effectively integrated, S has simple, but powerful data interface protocols utilizing RS232. Once integrated, S can be effectively utilized by existing access control resources.

The target markets of VP-II S are expected as follows:

• Small scale offices for physical access control
  
• Small scale factories for access control and T&A
  
• Residential places such as condominiums, apartments and luxurious villas
  
• Smart / Storage RF card access control market
  
• Interface to the solutions of SI providers as a verification terminal of vascular pattern

** 'External System' hereinafter stands for the device that can be interfaced to the VP-II S via RS232, which is capable of storing vascular pattern data in it. External System could be RF or smart card system, a Host PC/Server, or any storage device in the network when VP-II S is used as a verification terminal.