Specifications

WSE • 3/21/97 16720 — 8 Alto 818 Access Control System
(iv) DR 4226: Less than 17 watts.]
(v) DR 4238: Less than 17 watts.]
h. Wiring: Twisted pair (shielding optional) with 4,000 foot maximum recommended length.
i. Feedback:
1) Single tri-color LED (green/amber/red) shall provide capability for diagnostic feedback.
2) Tri-color LED shall be programmable.
3) An audio tone shall indicate successful digital proximity card read and access granted.
j. Diagnostics: DR and data-line integrity shall be monitored continuously and shall alarm if
failure is detected and indicate device and location of fault.
k. Self-protection:
1) Physical damage, including breaking open sensor housing, shall not allow access to any
circuitry which would allow the system to be compromised.
2) Transmission of any frequency (or set of frequencies) into the sensor at any power level
shall not compromise the system.
l. Manufacturer: Westinghouse Security Electronics
m. Model:
1) [Model DR 4204]
2) [Model DR 4205]
3) [Model DR 4208]
4) [Model DR 4226]
5) [Model DR 4238]
5. Keypad (VIP-2):
a. General:
1) The system shall have the means to utilize a numeric keypad for entry of a Personal
Identification Number (PIN).
2) The Keypad shall provide information to the Controller, either alone or in conjunction
with a card reading device, thereby providing an additional level of security.
3) The system shall have the means to recognize special duress codes which can be entered
into the Keypad to be available to any user during an emergency.
4) System administrator shall have capability to program a reaction based on Keypad duress
code input.
b. Capacities:
1) Keypad shall provide a standard 10 digit numeric entries organized in the standard
telephone pad layout.
2) The user shall be able to enter either a 4- to 8-digit Personal Identification Number (PIN).
c. Specifications: The Keypad unit shall be housed in a double gang metal utility box, 4.50 in. H
x 4.56 in. W x 2.19 in. D (cm).
d. Environmental:
1) Temperature: 20˚ F to 120˚ F (-7˚ C to +49˚ C).
2) Humidity: 10% to 95% non-condensing.
e. Regulatory: The unit shall meet the following regulatory requirements:
1) FCC class A computing device when installed in the system.
2) ANSI/NEMA Standard 250 for Type 4x enclosures.
f. Mounting:
1) Keypad shall be mounted on the outside of a building, in a wall, or against it.