The Hirsch ScramblePad is an access control reader delivering the additional benefits of remote operator control and tenant override functions. The ScramblePad provides a very high security approach to access because the digits are randomly scrambled each time the START button is pressed. A bystander cannot aquire the code by seeing which buttons were pressed (pattern recognition). No wear pattern develops on the buttons. Horizontal and vertical light guides narrow the viewing field so only one person directly in front of the keypad can see the display.

 

The ScramblePad uses a Personal Identification Number (PIN code) of 3 to 16 digits. The system administrator can assign the digits or let the system randomly generate them. A different number of digits (code length) may be concurrently assigned to different groups for access control or other custom control functions. 

 

Use of a memorized credential means that an individual cannot leave the credential at home, as often happens with cards.  Nor can another person copy the credential without the owner’s knowledge.  Since the credential is so secure and traceable to its owner, it is not likely to be loaned out, a constant risk with card technologies.  Thus each user is held accountable for his/her individual code use.

 

The ScramblePad provides a universal reader interface for analog or pulsed signal readers. 

 

The on-board 5VDC power source powers most readers. Used with a conventional reader, the ScramblePad converts the card’s raw code into a MATCH code, the security code used by a Hirsch DIGI*TRAC™ controller without a need to decipher. This allows existing card access systems to be upgraded and made more intelligent without replacing existing cards and readers. Hirsch recommends existing cards be sent to Hirsch for evaluation.

 

Remote Control by Extension Digits

• Door Unlock/Relock
• Mask/Unmask Alarms
• Arm/Disarm Security Systems
• After-Hours HVAC or Lighting Activation 
• Remote Control of Mechanical or Electrical systems
• Elevator Floor Requests
• Other Custom Control Sequences

High Security Communication Path

Programmer’s Terminal

• Add/Delete User Access Codes
• Assign Unlock/Relock Codes
• Assign Mask/Unmask Codes
• Add/Delete Relay Control Codes (e.g., for elevators, HVAC, lighting)
• Add/Delete Time Schedules & Holidays

Electrical

• Wiring Type: 2 pair, stranded, twisted, overall shield
• Wiring Distance: Refer to controller specifications
• Supervision: Digital From Controller
• Wiring To Reader: Refer to reader specifications
• Display: 7 segment
  • DS47L: Red LED
  • DS47L-HI:White incandescent
• Annunciation:
  • Audible: 7 tone prompt on pressing START, and 1 tone feedback for each button
  • Visual: 4 LEDs: Red, green, yellow, yellow
• Operating Power For DS47L:
  • 40 mA@24VDC when non-illuminated
  • 125 mA @ 24VDC when illuminated
  • 60 mA@12VDC when non-illuminated
  • 215 mA@12VDC when illuminated
• Operating Power For DS47L-HI
  • 40 mA@24VDC when non-illuminated
  • 250mA@24VDC when illuminated
• Operating Power For DS47L-SPX
  • 50 mA@24VDC when non-illuminated
  • 135 mA@24VDC when illuminated
• Operating Power For DS4L-SPX-HI
  • 50 mA@24VDC when non-illuminated
  • 250 mA@24VDC when illuminated
• Reader Power: 2 terminals
  • 250mA@5VDC
• Operating Power For SPSH-1
  • 600 mA@24VDC
• ScrambleProx Card Read Range:
  • 1.4 to 2.0 in. (3.5 to 5.0 cm)