Global Specialties PB-502 - Manual - Manual (Page 7)

7
SPECIFICATIONS
Input Power Source
Regulated wall mount adapter
with outputs of +/-12VDC @
200mA, 5VDC @ 250mA
Selectable Operating
Voltage
Select either 5V TTL or 12V
CMOS operation via jumper wire
connection
Power Supplies
Fixed DC: 12VDC @ 200mA +/-
5% Fixed - (-)12VDC @ 200mA
+/- 5%
Fixed DC: 5VDC @ 250mA +/-
5%
Clock
Frequency: Fixed at three levels:
1hz +/- 20%, 1Khz +/- 20%,
100khz +/- 20%
User variable with use of
external capacitor
Pulsers
(2) Fully debounced
pushbuttons with logic true and
complementary outputs
Logic '1" output current 2mA @
4V min (5V TTL)
Logic '1" output current 4mA @
11V min (12V CMOS)
Logic "0" output current 2mA
max @ 0.1V max (5V/TTL)
Logic "0" output current 5mA
max @ 0.1V max (12V/CMOS)
Logic Switches
(8) SPDT switches select output
of Vcc or ground (0V). Output
current is 200mA max in all
cases
Logic Indicators
(8) LEDs buffered by two 4-bit
latches with separate enables.
Input impedance 100k ohms in
all cases