PN# 500-21400
Page 9
Rev. C, 05/12
Figure 6
Figure 7
The addition of the “D” option incorporates a door position sensing switch which indicates when
the door is outside of the sensing range of the lock (3/8”-3/4”) and provides the added ability of
a SPDT dry contact that can be interfaced with either an access control system or intrusion
detection system (See Figure 8). The “D” option will report the door position whether the lock
is powered (secured) or not.
NC
C
NO
IN
REF
SERIES M38 OR M68 WITH "D" OPTION
(DOOR POSITION SWITCH)
(RED)
(WHITE)
(BLUE)
ACCESS CONTROL SYSTEM
DOOR POSITION STATUS INPUT
"D" OPTION OUTPUT
SPDT DRY CONTACT
CONTACT RATING: 200 mA @ 24 Volts
Figure 8
The “T” suffix option implements a small micro switch to create a tamper resistant enclosure of
the control wiring access compartment. At approximately .03” movement of the access cover
away from the lock housing (usually less than a full turn of the mounting screw) a signal is
transmitted to indicate that access is being attempted to the lock control wiring compartment.
(See Figure 9 for wiring diagram).
