Zone Connection - Interlogix ATSx500A Series Installation And Programming Manual

to the keypad terminal marked "−". The maximum number of devices allowed on
the databus is given in "General features" on page 36.
Two system databuses
Particular panel variants allow you to connect more bus devices by using a
second system databus. To install another system databus, use ATS670 second
RS485 LAN extension module.
System addresses of devices connected to the additional bus (BUS2) are
determined by adding 16 to keypad physical addresses, and 15 to expander
addresses. So, BUS1 handles keypads 1 to 16 and expanders 1 to 15, while
BUS2 — keypads 17 to 32 and expanders 16 to 30.
Note: Door controllers can only be installed on BUS1.

Zone connection

The inputs are set up as standard EOL freely programmable zones. However, by
programming the zones as dual loop, all zone inputs can be programmed to give
a few states indication for the same zone.
Depending on the detector model, do the following to set up zones:
• Choose your EOL connection type. See "EOL connection types" on page 27.
• Program input mode. See "8.6.1 Input mode" on page 248 for the panel, or
"2.2.2.n.4.4 Input mode" on page 152 for expanders.
• Set end-of-line resistor values. See "8.6.2 EOL" on page 248 for the panel, or
"2.2.2.n.4.5 EOL" on page 152 for expanders.
• Configure anti-masking option. See "4.1.n.6.7 Anti mask" on page 175.
Single loop zone wiring
In single loop zone wiring, two zones are required, one zone for alarm and one
zone for tamper. The tamper contacts are wired in series with an EOL resistor.
Figure 17: Single loop examples
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