User's Manual

How to Install the ISONAS IP-Enabled Reader-controller 17
2.2.1: READER-CONTROLLER CONTROL-LEADS DESCRIPTION
The reader-controller has a cable extending from its back plate that is referred to as
“the pigtail”. The pigtail consists of 12 wire leads (22 awg) which are used to
connect to the various components at the door location. Most installations do not
require the use of all the leads. The typical usage of each available lead is shown in
Figure 6.
Figure 6
One of the wires is for a door sense switch. Another is for a REX (Request for Exit)
signal coming from a switch, infrared sensor or other REX device. A third input
signal, called AUX (auxiliary), can be programmed to act in a variety of ways.