Manual PCI-WDG-CSM
9
Specification
Watchdog Timer
•
Time-out:
Software selectable from 2
μ
sec. to 2060 sec
•
Output Pulse Width:
120 nsec. Minimum, 31 msec. Maximum
•
Clock:
2.08333 MHz, derived from computer clock (33 MHz÷16)
•
Address:
Continuously mappable within 0000 to FFFF hex I/O range
•
Relay Output:
DPDT, Form C, max. switching current 2A DCat 30W or 1.25A AC at
30VA max
• Open
Collector
Output:
/WDRST Active low, 200mA sink max
•
TTL Output:
WDRST source 15mA @ 3.1V typical, sink 64mA @ 0.4V typical
•
Interrupt Output:
PCI-INTA
Status Monitor Options
•
Voltages
IRQ and status register indication if +5, +12, or -12 V /- 6% of
nominal
•
Temp. Alarm:
IRQ and status register indication at 122 °F. and above
•
Temp. Sensor:
8 bit ADC, LSB = 0.7 °F. (factory adjustable)
•
Buzzer:
Audio Alert signals watchdog timeout
•
LED Output:
5V, through a 470
Ω
resistor
•
Isolated Inputs:
Two, opto-isolated, 10 mA typical bias, 60mA max
• Isolated
Outputs: Complimentary
opto-isolated reset outputs (2). 5mA typical load @
30Vmax, 30mA maximum
•
Fan Speed:
IRQ and Status Register indication whenever speed is out of range
Environmental
•
Operating Temperature Range: 0 °C. to +60 °C
•
Storage Temperature Range: -50 °C. to +120 °C
•
Humidity:
10% to 90% RH, non-condensing
•
Power Required:
+5 VDC at 125 mA w/ no options, 250 mA all options installed
•
Size:
6.7 inches long (170 mm) x 3.9 inches high (99 mm)
