Specifications

WSE • 3/21/97 16720 — 10 Alto 818 Access Control System
j. 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.
k. Manufacturer: Westinghouse Security Electronics, Model [2814A (rear coax)] [Model 2815A
(side coax)]
7. Analog Proximity Card Reading Sensor—Compact Model (2804):
a. General:
1) 2804 Compact Sensor (Sensor) is an analog proximity sensor designed for mounting
indoors on plastic single gang box or any non-metallic surface.
b. Capacities:
1) Read range: 3 (inches) maximum.
2) Cards: Analog proximity cards containing tuned circuits (SE 1030, SE1040, SE1050,
SE1060).
c. Specifications:
1) Material: ABS or equal.
2) Dimensions: 3.3 in. X 4.5 in. X 1.3 in. (8.3 cm X 11.4 cm X 3.8 cm).
d. Environmental:
1) Humidity: 10% to 95% non-condensing.
2) Temperature: -20° to +120° F (-7° to +49° C).
e. Regulatory: FCC Part 15, Subpart C regulations for field disturbance sensors.
f. Mounting: Sensor shall:
1) Be mounted on indoor surfaces only.
2) Have the capacity to be mounted and operated on any non-metallic, non-conductive
indoor surface.
g. Power:
1) Source: Via the coax cable connection with the Controller (refer to section 1).
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 three inches from the surface.
3) The Sensor can also receive power for the dual color (red/green) LED from an external
power source at 12VDC.
h. Wiring:
1) Controller connection: A single coax cable shall connect the Sensor to the Controller.
2) LED power: A two-pair wire, 12 inches in length, shall provide ability to power the
red/green LED in the unit.
3) Sensor shall have the means to be electrically isolated to prevent short circuits from
disrupting other communications in the data line network.
i. Communication: An analog signal between sensor and Controller shall provide necessary
communication.
j. Feedback: [Single red/green LED shall indicate power on and secure (red) and provide access
granted indication (green).]
k. Diagnostics: Sensor and data-line integrity shall be monitored continuously and shall alarm if
failure is detected and indicate device at fault.