VLP 2900 introduced with new features

March/April 2001 Surveillance

The newly released firmware Version 5.20 for the video surveillance product VLP 2900 from Controlware Communications Systems has enhanced the products features by offering the functionality of a standard closed circuit TV system (CCTV) based on digital technology over TCP/IP.

The Controlware VLP 2900 currently operates in unicast mode, which allows a one-to-one standard connection between a transmitter and receiver unit. The latest firmware, Version 5.20, expands the capabilities of the VLP 2900 by three additional modes: multi-unicast, multicast and streaming.

Using multi-unicast mode, multiple users located at various remote sites, can connect via a VLP 2900-receiver unit to the VLP2900-transmitter unit, situated at any desired location. The transmitter unit will copy the same data stream to each receiver unit.

In multicast mode, one VLP 2900 transmitter can be connected to several receivers. The data stream is not duplicated in the transmitter so the data rate from the transmitter to the first switch of the network is the same as in unicast mode. A multicast capable network uses the Internet Group Management Protocol (IGMP) as well as UDP thus minimising the network, as opposed to multi-unicast where the network load is five times higher.

In streaming mode (also known as broadcast mode) the VLP 2900-transmitter unit sends a continuous data stream to a specific group IP-address and different port numbers. This is the entry into the LAN-TV application world.

The VLP 2900 enables simultaneous access to one video source for up to five users.

For further details contact Lucy Hunt on tel: (011) 315 7870, fax: (011) 805 5294, e-mail: [email protected], www.controlware.de





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