Installation Premier LCD & LCDL Installation Manual
8 INS180
Network Connections
Cable Distances
The maximum recommended distance for keypads when using standard 7/0.2
alarm cable is:
• 250m for each branch when using the star (parallel) configuration
• When using a daisy chain (series) configuration the maximum distance will
depend on the number of devices connected on the chain. The more devices
that are connected, the shorter the distance to the last device (this is due to
voltage drop in the cable)
Whichever method of wiring configuration is used, ensure that the voltage between
the ‘+’ and ‘–’ terminals at each device is no lower than 10.0V when the system is
running on the standby battery. The table below shows maximum cable runs when
one keypad is installed using standard 7/0.2 alarm cable:
Configuration Max. Cable Run
1. Keypad + 2 PIR’s @15mA 250m
2. As No. 1 + 16Ω Speaker
100m
Distances of up to 1km can be achieved between the control panel and a keypad.
However, a power supply must be installed close to the keypad to power it locally,
this will help to overcome voltage drop caused by the long cable run.
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