Manual Number: 00650-144-1
Page 25
Chapter 7: Specifications
Watchdog Timer
Time-out:
Software selectable from 4 mSec to 2060 seconds.
Output Pulse Width:16 mSec minimum
Clock:
2.08333 MHz, derived from computer clock (331/3MHz÷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.
Interrupt Output:
PCI-INTA
Status Monitor Options
1. Voltages:
IRQ and status register indication if +5, +12, or -12 V /-
6% of nominal.
2. Temp. Alarm:
IRQ and status register indication at 122°F and above
3. Temp. Sensor:
8 bit ADC, LSB = 0.7°F (factory adjustable).
4. Fan Speed:
IRQ and status register indication whenever tachometer output
drops below 50pps (custom factory settings available).
Buzzer:
Audio Alert signals watchdog timeout.
LED Output:
5V, through 470 ohm resistor
Isolated Outputs:
Complimentary opto-isolated reset outputs (2).
Isolated Inputs:
Two, opto-isolated, 5 mA typical load. Can be read at base address
+ 4.
Environmental
Operating Temperature Range:
0
o
to +60
o
C
Storage Temperature Range:
-50
o
to +120
o
C
Humidity:
10% to 90% RH, non-condensing
Power Required:
+5 VDC at 125 mA with no options, 250 mA with all options installed
Size:
6.7 inches long x 3.9 inches high (XT-height)
Содержание PCI-WDT 500
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