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Hacousto Holland bv
Industrieweg 87
2651BC Berkel & Rodenrijs
IMPACT reference system manual (Typical )
Author:
DD
Design revision:
2.0
4.4.6.1.
G-Net (global network)
G-Net is a redundant network ring where multiple Controllers may be connected into one system. It is used
to reliably synchronize data between all connected devices and for multi-channel live audio transmission
with very low latency. The G-Net works as a redundant double ring between Controllers, which keeps the
global system intact in case of single link failure.
4.4.7.
L-Net (local network)
L-Net daisy-chain topology is dedicated to peripheral devices of the Controller, such as remote microphone
stations. The L-Net is used to expand functionality of the Impact system to remote locations.
Maximum capacity of L-Net is:
-
Max. 500mA DC continuous power per port
-
Max. 8 L-Net devices per port
-
Max. 16 L-Net devices per Controller
4.4.8.
EVAC inputs
There are 18 monitored inputs dedicated to triggering signals for evacuation, silence, reset instructions and
other events from an external fire detection system or another trigger source.
Each of these inputs has built-in DC monitoring which requires two series resistors of 4.7kΩ + 10kΩ in order
to detect an input active/inactive state as well as short and open faults. The EOL resistors must be located