Securitron XMS Installation Instructions

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SECURITRON MODEL XMS EXIT MOTION SENSOR
INSTALLATION AND OPERATING INSTRUCTIONS

1. DESCRIPTION

The XMS is a passive infrared motion detector specifically designed to release a magnetic lock
from the inside for free egress. Unlike burglar alarm type detectors, the XMSìhas special
features appropriate to this use. The lock control function is fail safe so that the magnetic
lock will safely release if power is cut to the dete ctor. A relay is also present to send a REX
(request to exit) signal to an access control system (if one is present) and therefore shunt an
alarm report. A time extension feature avoids the problem of the unit resetting if a person
momentarily stops moving just before exit. Tight control of the exit detection pattern allows
maximum security from the outside and avoidance of inadvertent activation from the inside.

Since egress from a magnetically locked door can be a safety issue, make sure you are

complying with local building codes. Contact your building and/or fire prevention
department.

2. PHYSICAL INSTALLATION

2.1 PLACEMENT OF THE UNIT

The XMS is intended for indoor use only. It is positioned with respect to the inside of the doo r
so that its detection pattern will “see” a person approaching the door while maintaining good
security from the outside. There are different options as to where the unit is pla ced depending
on variables in the application.

FIG. 1: PLACEMENT OPTIONS FOR THE SENSOR

FOR TRAFFIC CONTROL
APPLICATIONS, MOUNT THE
SENSOR IN THE CENTER OF
THE DOOR WITH THE
PATTERN AS SHOWN

FOR SECURITY
APPLICATIONS, THE
PATTERN SHOULD SWEEP
ACROSS THE EXIT DEVICE
BUT MISS THE BOTTOM OF
THE DOOR. THE SENSOR IS
POSITIONED BEYOND THE
HINGE SIDE OF THE DOOR

WHEN A DOORKNOB IS
PRESENT IN A SECURITY
APPLICATION, THE
PATTERN CAN BE MADE
MORE NARROW

THE SENSOR CAN BE
POSITIONED AT THE
SIDE FOR SECURITY
APPLICATIONS ON
DOORS AT THE END
OF CORRIDORS

The simplest method of placing the unit is for traffic control applications. A traffic control
application is one where you do not expect any attempt at breaking in from the outside. The

© Copyright, 2011, all rights reserved PN# 500-18000
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unit is simply centrally positioned above the door with the pattern covering the doo r (setting the
pattern is addressed later in this manual).

For security applications, you will set your position to defend against someone activating the
detector from the outside. This can be done by inserting a heated object under the door. To
deal with this threat, the unit is positioned above and outside of the door hinges with the pattern
adjusted so that it sweeps across the door but does not detect the bottom of the door. If the
door includes an exit bar, the pattern must be broad as a person’s approach to the door is
variable. If it includes a door knob or lever handle, the pattern can be adjusted more
narrowly.. A final option for security applications is to position the unit at the side of the door
so that it sees across the door. This can be used for doors at the end of corridors. You would
not want to employ this approach for non corridor doors as the door would be released by
someone walking near it (maximum detection range is 20-25 ft.) Side of door mounting has the
disadvantage of greater exposure to vandalism but defends aga inst objects being inserted un der
the door and provides excellent coverage along the full width of the door. No te that for the en d­of-corridor application, the unit can be positioned on the same wall plane as the door or on a
wall which is next to the door and perpendicular to it. You have the choice because the pattern
can be adjusted a full 90 degrees with respect to the sensor’s mounting plane.

2.2 FIXING THE UNIT TO THE WALL

First, locate the screw on the end of the unit and loosen it. This permits you to remove the
cover. The appearance of the interior is shown in Figure 2. Note tha t the interior electronics is
mounted on a rotating barrel which is locked by the “Barrel Locking Scr ew” shown in Figure 2.
Loosen this screw and rotate the barrel fully upward so that you can remove it. This leaves you
with the back piece and you will see two slotted holes for physica l mounting and a choice of two
wire entry points (also shown on Figure 2). Most installers prefer to pu ll the cable through the
wall first and then mount the unit. If you’re not sure of your wire count for the cable, consult
the next section at this time but completion of physical installation consists only of screwing the
back piece to the wall and pulling the cable through one of the wire entries. Then you will
replace the barrel assembly and attach the wires to the screw terminals.

FIG. 2: XMS OVERVIEW

LED LOGIC

JUMPER

SENSITIVITY

JUMPER

LED FAST

BI-COLOR

LED

LOCK CONTROL REX RELAY

IN+ DEVICE

C1

NC1 NO1

IC

-

AB

TIME SET

JUMPER

AIMING

SCREWS

+

12-28 VDC

POWER

INPUT

BARREL LOCKING

SCREW

WIRE
ENTRY
HOLES

3. WIRING

3.1 INPUT POWER

To power the unit, filtered and regulated DC voltage between 12 and 28 volts should be applied
to the power input terminals (see Figure 2). This connection should be permanently made to
the power supply rather than switched through some other device. The XMS should receive
constant power. Make sure you observe correct polarity with this connection. If you reverse
the input power polarity, the unit will not be damaged but will appear to be dead. Power
consumption for the XMS is approximately 20 mA.

3.2 WIRING WITH MAGNETIC LOCK ONLY

This is the simplest application which releases the magnetic lock from the inside for free egress
but is not concerned with shunting any alarm point at the door. It is shown in Figure 3.

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FIG. 3: WIRING WITH MAGNETIC LOCK ONLY

XMS

12-28 VDC

POWER

SUPPLY

+

IN+ D VICE

C1

NC1 NO1

+

MAGNETIC LOCK

-

-

MATCH POWER

SUPPLY VOLTAGE TO

MAGNETIC LOCK

VOLTAGE

+

Note that how positive power to the lock connects through the terminal block “IN+” and
“DEVICE”. These two terminals constitute an internal field effect transistor which does the
actual switching. If power to the XMS was somehow interrupted, the field effect transistor would
automatically open (releasing power to the lock). This makes the XMS “fail safe”. Note:
never use the REX relay contacts to switch the magnetic lock. These contacts only have
enough capacity for signaling; they cannot reliably switch magnetic lock current.

If you need to integrate a controlled entry unit such as a digital keypad, use a set of NC
contacts from the entry unit to break the wire between “DEVICE” and magnetic lock “+” to allow
the entry unit to release the lock.

3.3 SHUNTING AN ALARM POINT

-

This technique is for installations where the door is connected to an alar m system and that if
the door opens without the XMS having been activated, an alarm signal should result. When the
XMS is employed to open the door, the alarm signal should be shunted.

FIG 4: WIRING TO SHUNT ALARM SYSTEM ON DOOR

TO ALARM PANEL

IN+ DEVICE

ALARM SIGNAL WHICH IS
CLOSED WHEN DOOR IS CLOSED:
OPENS TO ALARM

NC1 NO1

C1

DOOR

SWITCH

IN+ DEVICE

ALARM SIGNAL WHICH IS
OPEN WHEN DOOR IS CLOSED:
CLOSES TO ALARM

TO ALARM PANEL

NC1 NO1

C1

DOOR

SWITCH

The alarm system will be connected to a door switch or other detector at the door vi a two wires.
You will need to determine if this “loop” is closed when the door is clo sed and opens when the
door opens or is open when the door is closed and closes when the door opens. Correct wiring
to shunt the alarm is shown in Figure 4 for either instance. You utilize the “REX” rela y contacts
for this shunting while the lock control relay contacts continue to release the magnetic lock.

3.4 INTEGRATION WITH ACCESS CONTROL SYSTEM

An access control system permits entry (generally from a card reader) and will also often act a s
an alarm system if a door is forced. To integrate with the XMS and a magnetic lock, the access
system should have a two-terminal REX (request t o exit) input. When this input is closed, the
access system will operate its lock control relay to release the lock and will not create an al arm
signal as it will consider the exit event a “legal” one. Wiring is shown in Figure 5. Note that with
this wiring method, the lock control terminals of the XMS directly break power to the magnetic
lock as do the access system contacts. This is called “double break” wiring. It enhances safety

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