TB-9094
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© 2019 DESCO INDUSTRIES INC
Employee Owned
SCS
- 926 JR Industrial Drive, Sanford, NC 27332
East: (919) 718-0000 | West: (909) 627-9634 • Website:
StaticControl.com
WIRING THE DUAL COMBINATION TESTER TO AN
ACCESS CONTROL SYSTEM
The Dual Combination Tester may be connected to
an Access Control System to grant access when both
a valid proximity badge is read and PASS test results
are achieved at the tester. Figure 8 shows an example
when using a turnstile.
Operation
1. A circling light around the test switch indicates when
the Dual Combination Tester is on standby and
ready to perform a test.
Access Control System*
NORMALLY
OPEN RELAY
DATA
INPUT
Proximity
Reader
Dual
Combination
Tester
ACC
INPUT
Turnstile
DATA
LINES
Figure 8. Wiring the Dual Combination Tester to an
Access Control System
(normally open relay
contacts shown above)
2. While wearing a wrist strap and/or ESD footwear,
plug the wrist cord into its corresponding jack
located on the face of the Dual Combination Tester.
Place one foot on each foot plate.
3. To begin the test, use your finger to bridge the test
switch’s inner and outer contacts. The blue standby
LED will become solid to indicate that the test has
been initiated. Hold your finger down until the test
results are displayed.
If your finger is removed too early, the tester’s LEDs
will blink three times to indicate that the test was not
completed. DO NOT touch any other metal while
performing your test as this will affect your results.
*NOTE: The Access Control System must have a time
delay feature in order to achieve the configuration
described above. Set the Access Control System’s
relay to remain active for a few seconds when a valid
proximity badge is accepted. The relay will need to
remain active long enough for an operator to perform
a test on the Dual Combination Tester. The access
control device will only unlock when it receives an active
signal from both the Access Control System and Dual
Combination Tester.
Figure 9. Steady-State Test Switch features and
components
OUTER
CONTACT
INNER
CONTACT
STANDBY
LED