The current Model CC-8521AN Access Controller has been installed on DDG class vessels since 2001. It is a shipboard version of a similar system used in many U.S government buildings.
The Model CC-8521BN is a next generation unit resulting from experience gained in the shipboard environment and improvements recently incorporated in the land based version.
Crypto-Lock is a versatile, easily installed and operated single door access control system. It provides reliable, secure access control using a single 3, 4, 5 or 6-digit PIN code for all users. It can be used with virtually all magnetic locks and electric locks and door strikes.
The system, pictured in Figure 1-1, includes a built-in 24Vdc power supply to power electric and magnetic locks,
eliminating the need for a separate power supply unit. It provides the voltages and currents required to reliably open standard locking devices including heavy duty locks such as Sargent & Greenleaf BRUTE* electric locks that require high in-rush currents.
The power supply includes a battery charging 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 are housed in the Control Panel.
The length of time during which the lock remains released after entry of the valid PIN is programmable from 3 to 60 seconds. An invalid PIN Penalty feature provides for ignoring all keypad entries for 3 to 60 seconds after an invalid digit is entered. Further, if five or more successive invalid PINs are entered the penalty time is set to 60 seconds until the valid PIN is entered. This greatly reduces the possibility of gaining access by guessing PIN codes.
The system provides door monitoring functions through programmable alarms that can be used to notify of a door that has been propped or forced open. Alarms can trigger audible alerts or activate signals for use with external devices or systems. The keypad is weather resistant chrome and stainless steel unit with a 20 ft shielded, water blocking cable. A green LED on the face the keypad signals the recognition of each key stroke and also illuminates when the door is released.
The # button on the keypad activates a horn in the control Panel and also generates an output signal for activating an external 24Vdc device.
Installation and set-up are readily accomplished using the wiring diagram affixed to the inside of the enclosure door and also contained in this manual.
A programming mode (which can only be activated from within the Control Panel) allows authorized personnel to set the PIN and other functions (see Table 5-1) using the keypad.
*Brute is a registered trademark of Sargent & Greeleaf, Inc.