User manual

PCL-818 Series User Manual 40
A.4 Counter/Timer
A.5 General
Device Intel 8254 or equivalent
Channels 3 channels, 16 bits. 2 channels are permanently configured as pro-
grammable pacers; 1 channel is free for your application
Compatibility TTL/CMOS
Base Clock Channel 2: Takes input from output of channel 1
Channel 1: 10 MHz or 1MHz, switch selectable
Channel 0: Internal 100 KHz or external clock (10 MHz max.),
selected by software
Pacer output 0.00023 Hz (71 minutes/pulse) to 2.5 MHz
I/O Connector Type DB-37 female x 1, 20-pin connector x 2
Dimensions 185 mm x 100 mm (7.3" x 3.9")
Power Consumption Typical +5 V @ 650 mA
Max.
Operation
+5 V @ 700 mA
0 ~ 60 °C (32 ~158°F) (refer to IEC 68-2-1,2)
Temperature
Storage -20~85°C (-4~185°F)
Relative Humidity 5~95%RH non-condensing (refer to IEC 68-2-3)
Certification CE certified