Remote Processing RPC-30 - Manual (Page 37)

TECHNICAL INFORMATION
RPC-30 Page 35
ELECTRICAL
CPU
Z180, 18 M hz clock
Memory
CAMBASIC, 32K ROM
Program ming and data is 32K or 128K RAM standard,
512K Op tional.
RAM is battery backed up. Battery life is 5-10 years
depending upon RAM size, type, and operating time.
Program is 32K EEPROM
Memory speeds are 80 ns or faster
D i gi ta l I / O
The RPC -30 has 48 digital I/O lines. 24 are from J3,
which is a general purpose port. 14 are for the display
port, J4. 10 ar e for the keypad por t, J5. All ports use
an 82C55 for interfacing.
The specifications below are for all digital I/O except for
the eight high current lines at J3.
Drive curr ent 2.5 ma m aximum per line,
sink or source. TTL
compatible.
Output low voltage 0.45V m ax at 2.5 mA , 1V
max at 15 mA for opto rack.
Output high v olts 2.4V m inimum, sink or source
at rated cu rren t.
All digital input lines are TTL compatible.
High cu rrent ou tput at J3
8 of the 24 lines can drive up to 500 ma at 50V. Refer
to CHAP TER 6, DIGITA L AND OPTO PORT S for
limitations.
Keypad input
10 lines accept a 16, 20, or 24 position matrix keypad.
S c an n in g an d de b ou n ce p er f or m e d i n C A M B A SI C .
Display output
14 digital and 6 power and ground lines used to control
LCD , VF , and LC D graphics displays. D isplays
s u pp o r te d in C A M BA S IC .
Serial ports
Two RS-232D serial ports. All have RxD and TxD
lines. COM1 has only these lines. COM2 also has CTS
and RTS lines. C OM2 configurable to RS-232 or R S-
422/485. Termination network for RS-422/485
available. Baud rates fr om 600 to 3 8.4 K, 7 or 8 data
bits, par ity even, odd , or none, 1 or 2 stop bits.
EEPROM and programer
Accepts 29C256 or equivalent EEPROM.
Size:32K
Speed:120ns or faster.
Opto module rack
Four position accepts G4 or G5 series I/O modules
Calendar/Clock
Accur acy to 1 m inute/m onth
S u pp o r te d by C A M BA S IC .
Battery backup standard. Expected life 5 to 10 years
depending upon RAM installed and operating time.
Watchdog timer, reset
Watch dog timer resets card for 150 ms minimum when
enabled.
Reset connector available. External re set time should be
0 . 1 se c on d m in im u m .
Push button reset included.
Power requireme nts
+ 5 ±5 % a t 10 0 m a
RS-232 voltages generated on card.
Current consumption does not include any opto-modules
or other acc essories.
MECHANICAL
Size: 4.5" x 7.0"
Maximum height: 0. 675", no opto modules or cables
installed.
Mounting holes: 4 each corner , 0. 25" from edge of
board. Hole size is 0.156" dia.