Pepper Computer RS485, RS232 user manual Specifications, D C

SMART I/O User’s Manual Chapter 2 SMART-BASE

2.1 Specifications

	D C / D C
Nominal Input Voltage	24V DC
Input Voltage Range	18V - 36V DC
Input Current	140mA typ. @ 24V (static)
	400mA typ. @ 24V (full load)
Main Output Voltage	5V DC / 1.2A ± 2.5%
Auxiliary Output Voltage	5V DC / 150mA (PROFIBUS/RS485) ± 5%
Switching Frequency	100kHz
Main Output Ripple	± 10mV typ.
Max. Efficiency	68% typ. (between 74% and 100% load)
Galvanic Isolation	500V DC max. to/from supply source

	Controlling Unit
CPU	MC68302 @ 20MHz
EPROM or FLASH*	1 MByte or 256 kByte on Jedec 32-pin
	sockets (16-bit access)
FLASH*	1 MByte or 256 kByte additionally soldered
	on rear side of the board (16-bit access)
DRAM	512 kByte, byte/word access (16-bit)
SRAM	64 kByte, byte/word access (16-bit)
EEPROM	93C46, 32-byte system data
Galvanic Isolation	2.5kV DC to/from process I/O
	Common
Temperature Range	-40°C to + 85°C (without battery)
- Storage
- Operating	0°C to +70°C
- Extended	-40°C to +85°C
Operating Humidity	0 to 95% non-condensing
Weight	640g typ. without SMART-Modules, blank
	panels or screw terminals

* Option

Page 2 - 4 ©1996 PEP Modular Computers GmbH March 12, 1996