Crypto-Lock is a versatile, easily installed and
operated single door access control system. It
provides reliable keypad access control using a
single 3, 4 or 5-digit PIN code.
The unit includes a built-in 12Vdc and 24Vdc,
2A power supply to power electric strikes and
magnetic locks, eliminating the need for separate
power supply units. It provides the high
in-rush currents required to reliably open heavy
duty locking devices such as Von Duprin* rim
latch retraction units and Sargent & Greenleaf
Brute* electric locks. Continuous activation of
large solenoid-operated locks is possible by a
unique, switch selectable current limiter. After
the lock has opened this feature limits the current
to a value that will reliably hold the lock
open without damaging the solenoid.
The power supply includes a battery charger
and monitoring circuit that automatically maintains
batteries in a fully charged condition and
activates audible and visual warnings when the
charge level is low. Two 12V, 7AH sealed lead
acid batteries can be housed in the enclosure.
The stainless steel keypad includes a green
LED which illuminates when the door is
released. A visitor button on the keypad activates
an internal annunciator and also generates
an output voltage for an external device.
Installation and set-up are readily accomplished
using the wiring diagram affixed inside
the enclosure door and clearly labeled terminals
and controls. Slide switches set the PIN
length (3, 4 or 5 digits), output voltage (12 or
24 Vdc), and enable holding current limiting.
Five 10-position DIP switchs are used to set
the PIN. The open duration time and penalty
time are set by analog control knobs.
The CC-8521A can be wired to operate on
either 110 or 230 Vac, 50-60 Hz .

• Power required: 115/230 Vac, 50 or 60Hz, 60W
• Output: 12 or 24 Vdc, 2A continuous
• Holding Current: Can be limited to 300mA
• (switch selectable)
• In-rush capacity: 16 A
• Relay contacts: 10A, SPDT (FormC)
• Battery back-up: 12Vdc or 24Vdc, automatic
• transfer and charging (batteries
• optional)
• Battery monitoring: Warning lamp, beeper and
• output signal activate when
• battery is low
• PIN code length: 3, 4 or 5 digits, switch selectable
• Open duration: Adjustable, 3 to 60
• seconds
• Penalty function: Invalid digits temporarily disable
• operation
• Penalty time: Adjustable, 3 to 60
• seconds
• Remote release: Dry contact closure input
• Keypad cable
• Keypad: 14-conductor, #22
• Annunciator: 2-conductor, #22
• Supplied cable: 10 ft., 15-conductor, #22
• Max. length: 200 ft.
• Enclosure: 19 gauge steel, powder painted,
• gray color, knock-outs for
• conduit, cam-lock or padlock
• Dimensions 12H x 9W x 4.5D in.

CC-8521A: Crypto-Lock single door access control system including control unit, weather proof 10-button keypad in stainless steel
spy-proof housing with visitor button and 10 ft. cable, user code cannot be re-programmed, changed or revealed in any way from
keypad. Control panel includes penalty time adjustment (3-60 sec.), open time adjustment (3-60 Sec.), code length switch (3, 4 or 5
digits), five 10-position DIP switches set the PIN code, output voltage 12 or 24 Vdc (switch selectable), 2A continuous, 16A in-rush
current, holding current limit switch (2A or 300mA), fail-safe and fail-secure lock outputs, visitor annunciator and output voltage, low
battery warning lamp, beeper and output signal, metal enclosure accommodates two 12V, 7AH batteries with cam lock and provisions
for padlock, input power 115/230 Vac, 50-60Hz. Supplied with instruction manual, mounting hardware and remote release
push-button switch.