Securitron EXD - Manual (Page 2)

PN# 500-13350
Page 2 Rev. E, 11/11
2.1 LOCKING DEVICE
The full range of Securitron's model 62, 68, 82, 32, 38 and model SAM shear aligning series
electromagnetic locks is available as part of an EXD system. The model 62, 68 (1200 lbs.) or
model 82 (1800 lbs.) is appropriate for applications requiring high physical security. The model
32, 38 (600 lbs.) is for applications requiring "traffic control" security levels. The SAM is used
when a fully concealed installation is desired or in specialty applications where the door must
swing both ways. Selection is made first according to whether the door swings out or in
(standard or "F" version). Note however that the SAM does not include a door swing direction
variable. Adding “B” to the part number adds lock status sensing with an SPDT output. If lock
status sensing is selected, note that the logic timer component of any EXD system includes lock
status monitoring.
2.2 DELAY INITIATING DEVICE
2.2.1 WHEN INTEGRATED WITH ACCESS CONTROL
The initiate device opens a switch to electronically trigger the delay cycle. A broad selection of
initiate devices are available for use with the EXD system.
Available devices include Securitron's range
of Touch Sense Bars (TSB-3 series). The
Touch Sense Bar is available in two finishes
(clear anodized and black anodized) and in 3
lengths to correspond to standard door
opening widths (36", 42" and 48"). The
Touch Sense Bar electronically detects skin
proximity (even through clothing) and as
such, suffers no wear with repeated use. It
also has a redundant circuit backup
switch which provides extra reliability in the event of any electronic failure.
A similar device is Securitron’s Touch Sense Handle (TSH series). The Touch Sense Handle is
electronically identical to the Touch Sense Bar and also comes in clear or black anodized finish.
The handle can be employed to push a door open (normal use) or pull a door open in a specialty
situation where the exit door doesn’t open outwards (this use should be confirmed with your
local fire or building inspector). Also, depending on the building occupancy type, an exit bar
rather than exit handle may be required by code. Again consult your local building or fire
department. Another specialty application mentioned earlier is when the SAM (shear aligning
Magnalock is employed on a double acting door (which swings both ways). In this instance, the
TSH is an interesting initiate device as it can conveniently propel the door in either direction.
Both the Touch Sense Bar and Handle are intended for use on Non-fire rated doors (fire
rated doors must be positively latched by fire rated latching hardware). For fire rated doors
where electronic access is included in the system requirements, you should employ a switch
equipped fire rated mechanical panic bar with free moving entry trim on the outside of the
door. When the bar is depressed from the inside, the integral switch opens which initiates the
release delay. At the same time, the latch is withdrawn which permits exit once the delay has
expired. For entry, once the Magnalock has been released (by the card reader for example) the
trim handle is turned from the outside which retracts the latch and permits non alarmed entry.
Turning the trim handle from the outside however does not activate the initiate switch
within the panic bar so delay cannot be initiated from the outside.
Certain fire rated, switch equipped panic bars manufactured by firms other than Securitron have
been tested as part of this system (consult current label data). Fire rated switch equipped panic
bars from still other manufacturers can be considered for use with the EXD system if the local
authorities understand and accept that these bars have not been individually tested with the
EXD system.
2.2.2 INITIATE DEVICES FOR EGRESS CONTROL ONLY
The principal advantage of the initiate devices discussed in this section is that existing latching
door hardware (fire or non-fire rated) does not have to be removed. This results in
considerable savings in installation costs. Note that the initiate devices discussed in this section
require the presence of latching exit hardware.