Instruction manual

Designing and Planning an M2150 System
26 Access Control Design Guide
Using an Edge Network Video Server (ENVS)
An ENVS is a network device for recording and streaming video from up to four connected cameras. An
ENVS can be fitted inside the same cabinet as a database unit or controller, or can be a standalone or
rack-mounted device.
When the optional hard disk is fitted, a store-and-forward function allows video to be recorded locally, then
forwarded over a network to a storage location during out-of-hours times. The ENVS is designed for use
with the SMS Digital Video Management Module, which enables the pictures to be controlled, viewed,
recorded and replayed from any SMS client PC.
Note: The ENVS must not connect to any M2150 equipment or be installed in the same cabinet as M2150
devices when compliance with UL294 is required. An ENVS can be used as a standalone device
connected to the network.
The Digital Video Design Guide provides an introduction to digital video systems and advice on the design
of systems that include digital video.
Key hardware features of the ENVS include:
• Four composite video inputs (models with a single channel also available).
• Optional 80GB or 160GB hard drive for video recordings.
• Built-in 10\100Mbit Ethernet port (supplied with a 4-port unmanaged switch when integrated with
access-control panels).
Note: The switch uses predefined priorities for each Ethernet port. The LAN, ENVS and access-
control database unit must connect to the switch as described in the ENVS Installation Instructions.
• Four monitor point inputs and two auxiliary relay outputs.
• Pan-Tilt-Zoom (PTZ) controller port, using RS232/422/485 connection.
• Serial port – enables external equipment to action trigger commands independently, such as to
switch on ENVS recording at predefined times of the day or in response to an alarm condition.
Examples of equipment that connect to this port include an M2150 database unit and HISEC Video
Terminal Interface (VTI).