Specifications

Level One: Protege GX Installer Study Guide | August 2013 115
Input Connection
The Protege DIN Rail Controller and RDM2 both allow the connection of up to 4 contacts for monitoring and
controlling access control doors. Each input on the Controller can be used for the door function that is
automatically assigned and as a normal input on the system. The following example shows the connection of a
normally closed door position monitoring contact to monitor the Open, Closed, Forced and Alarm conditions of
the door.
V+
V-Z4 V- Z3 Z2 V- Z1
N.C. Input Contact
N.C. Input Contact
N.O. Input Contact
N.O. Input Contact
1K
1K
1K
1K
1K
1K 1K
1K
Door Contact
Bond Sense
REN Input
REX Input
Inputs 1-4 and 5-8 can operate as either general purpose inputs or as onboard reader inputs. If used as general
purpose inputs, make sure that these inputs are not defined in the onboard reader set up.
Input Access Control Function Default Setting
Input 1 Door Contact, Port 1 Door Contact, Port 1
Input 2 REX Input, Port 1 REX Input, Port 1
Input 3 Bond Sense, Port 1 General Purpose Input
Input 4 REN Input, Port 1 General Purpose Input
Input 5 Door Contact, Port 2 Door Contact, Port 2
Input 6 REX Input, Port 2 REX Input, Port 2
Input 7 Bond Sense, Port 2 General Purpose Input
Input 8 REN Input, Port 2 General Purpose Input
When connected, the REX Input can be programmed to operate regardless of the door contact state. The REX
input can also be programmed to recycle the door alarm time to prevent nuisance alarms when the door is held
open to permit longer entry.