1. G L O S S A R Y O F T E R M S
Door Release or Door Lock
Electric device used to lock/unlock a door. Typically it can be a door strike, solenoid lock or
magnetic lock.
Identifier
The physical item or method which is used for identification of users. It can be a proximity card, a
PIN code, a finger template etc. In some cases identifier may consist of two or more items required
for a single identification procedure. For example when option Card and PIN is active then
Identifier=Card+PIN.
Identification Mode
The method used for identification of users, it can be Card or PIN, Card and PIN, Card only,
PIN only etc.
Memory Reset
The procedure which clears contents of device’s memory and restores default (factory) settings.
PRT Series Readers
The PRT reader’s family developed and manufactured by Roger.
Restart
The situation when device goes through the initialization procedure, the same as when it is
powered up.
Roger Access Control System (RACS)
The access control system which consists of PR series access controllers developed and
manufactured by Roger.
Access Control Unit (ACU)
The logic device which provides access control, usually it is an access controller.
XM-2 I/O Expander
The remote I/O expander for RACS system. The XM-2 provides two NO/NC inputs and two relay
outputs.
Full Standalone Mode
The operation mode in which reader autonomously controls a door. When operating in Full
Standalone Mode the PRTxxEM reader requires the remote XM-2 expander, also in this mode it
can operate with another (second) PRT series reader to provide read-in/out door control.
Simple Standalone Mode
The operation mode in which reader independently controls a door. When in Simple Standalone
Mode the PRTxxEM reader uses its internal I/O lines as general purpose I/Os but is not capable to
operate with XM-2 expander and/or second PRT series reader.
RACS Interface
The electrical interface and addressable protocol developed by Roger. This interface is implemented
in access readers and controllers manufactured by Roger. The RACS interface uses two
communication lines (CLK and DTA) and proprietary communication protocol capable to address up
to 16 devices.
EPSO Protocol
The addressable, half duplex, serial communication protocol developed by Roger. This protocol
allows a host device (PC or controller) for direct control of the reader’s hardware through the set of
remote commands.
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