Velocity Operation Manual
www.velocitydetection.com
63
NETWORKING
The Velocity requires a VL/NWM module to network to another Velocity system.
Up to 64 control panels (CIEs) can be connected together, i.e. networked. The maximum distance between nodes is 1 km using a
screened data cable, or 100m using a standard fireproof cable.
The network can be configured with a ring or bus topology, but would recommend the network is wired as a ring for better fault
tolerance.
Network Typologies
Ring Network (Class A)
In a ring network, each control panel is connected to 2 other control panels to form a ring. This has the same topology as the loops of
addressable devices connected to each CIE. This has the advantage that no panels are lost if there is a single break in the network.
Bus Network (Class B)
This is similar to a ring network but wired panel to panel without a return connection from last panel to first panel. It could also be
referred to as a radial or spur network.
NOTE:
It is recommended that you install and wire your network in a ring topology for better stability
and redundancy.
