Pyronix Enforcer 64, Installation Manual

Page: 11 / 88

Overview of Devices
All peripherals, such as LCD keypads, readers, expanders, are connected via the D1-, D2+, D3 and
D4 terminals.
Figure 1: Example of a typical Enforcer bus
PCX-LCD/EX
Max=3
PCX-RIX8+
PCX-RIX8i
Max=4
PCX-PROX/INT
Max=3
PCX-ROX8R8T
Max=4
PCX-EXT-W
Max=3
PCX-RIX8i+PSU
Max=4
PCX-PSU
Max=1
General Principles
1. No alarm system cable should be run with other cables carrying AC or digital signals.
2. The cables should be protected by the use of grommets where appropriate.
3. For greater than 1000m range, standard isolated RS485 repeaters are required.
4. If an expansion module with a power supply on board is connected, the D2+ terminal must
not be connected between the main bus and module.
Enforcer Installation Guide 102017854 - V01 11