Specifications

WSE • 3/21/97 16720 — 9 Alto 818 Access Control System
2) After the Keypad is installed and operations have been verified, decal shall be placed over
the cover plate to conceal mounting plate and to provide a weather seal.
g. Power: The Keypad receives power from the network twisted pair wiring.
h. Wiring: Twisted pair cable with a maximum recommended cable length of 4,000 feet.
i. Feedback: The Keypad shall provide three LED status for awaiting card presentation,
awaiting keypad entry and acknowledgment of successful access granted and door unlock.
j. Self-protection: The Keypad is protected against the circuitry being removed from the outlet
box or the box being forcibly removed from the wall by means of a strategically placed
internal tamper switch.
k. Manufacturer: Westinghouse Security Electronics Model: [VIP-2] [VIP-2W (weatherized)]
6. Analog Proximity Card Reading Sensor (SE 2800 Series):
a. General:
1) Analog Proximity Card Reading Sensor (Sensor) shall connect to the Controller via data-
line as specified by the manufacturer.
2) Sensor shall have the means to be electrically isolated to prevent short circuits from
disrupting other communications in the data-line network.
3) As a minimum, the Sensor shall detect command card codes when a card is within two
inches (5 cm) of it’s surface.
b. Capacities:
1) The Sensor shall “read in” data encoded on analog proximity cards containing tuned
circuits (Model SE 1050 or SE 1060) placed within a minimum of 2 inches of the sensor.
2) The Sensor shall not require contact with the sensor.
3) Specifications: The Sensor shall be sealed, waterproof, weather resistant, and
tamperproof. Material shall be Lexan or equal.
c. Environmental:
1) Humidity: 0% to 100% condensing.
2) Temperature: -50° to +180° F (-46° to +82° C).
d. Mounting: Proximity Card Reading sensor shall have the capacity to be mounted and
operated behind any non-metallic, non-conductive surface, including glass.
e. Power:
1) Via the coax cable connection.
2) The Sensor shall emit a low power (less than one microwatt) RF field in the 2 to 27 MHz
range which is concentrated in a region up to 6 (six) inches from the surface.
f. Wiring: A single coax cable shall connect the Sensor to the Controller. Coax will conform to
the following:
1) A standard coax cable has a pure copper, single strand, 18 AWG center conductor, a foam
dielectric and a dual shield, 61% AL braid, 100% AL bond wrap. This cable has an
impedance of 75 ohms and the physical dimensions of RG6/U. All spools must have a
100% sweep test before use.
2) Additional cables, for direct burial, plenum and elevator rated conforming to WSE models
SE9284DB, SE9284PL and SE9284EL can be utilized for the respective applications.
g. Communication: An analog signal between sensor and Controller shall provide necessary
communication.
h. Feedback: Single red LED shall indicate power on and provide capability for diagnostic
feedback.
i. Diagnostics:
1) Proximity Card Reading sensor and data-line integrity shall be monitored continuously.
2) An alarm shall sound if failure is detected and indicate device and location of fault.