Installation Instructions

30 CS175-275-575-875 Installation Guide
5.3 Wiring the keypad
The keypad should be wired to the control unit as follows.
+
-
Com
13.8V
0101
Data
Aux+
CSx75 CS-LCD
5.4 Wiring the keypads together
The total cable length of wiring is restricted to 800 m. The following table lists the wire
gauge that should be used. These numbers are for one keypad at the end of the wire.
When connecting more than one keypad to the end of the wire, a higher gauge wire is
required.
Bus Length Connected to CSx75
Length in meters Wire mm²
110 0.50
200 0.75
333 1.00
500 1.50
800 2.50
The maximum number of keypads you can connect to the control panel is the number of
partitions multiplied by eight. The CS175 supports a maximum of eight keypads, the
CS275 supports a maximum of 16 keypads and the CS575 and CS875 support a
maximum of 32 keypads.
5.4.1 Multidrop network
In a multidrop network, keypads are chained together. Each keypad is connected in
parallel to the one before it.
5.4.2 Star network