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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 Optional.

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

Digital 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 current 2.5 ma m aximum per line,

sink or source. TTL

compatible.

Output low voltage 0.45V max at 2.5 mA, 1V

max at 15 mA for opto rack.

Output high volts 2.4V minimum, sink or source

at rated current.

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, DIGITAL AND OPTO PORTS for

limitations.

Keypad input

10 lines accept a 16, 20, or 24 position matrix keypad.

Scanning and debounce performed in CAMBASIC.

Display output

14 digital and 6 power and ground lines used to control

LCD, VF , and LC D graphics displays. D isplays

supported in CAMBASIC.

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. COM2 configurable to RS-232 or RS-

422/485. Termination network for RS-422/485

available. Baud rates fr om 600 to 38.4K, 7 or 8 data

bits, parity 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 minute/m onth

Supported by CAMBASIC.

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 reset time should be

0.1 second minimum.

Push button reset included.

Power requireme nts

+ 5 ±5% at 100 ma

RS-232 voltages generated on card.

Current consumption does not include any opto-modules

or other accessories.

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.

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