Pepper Computer Modular Computers RS485 - Manual (Page 45)

SMART I/O User’s Manual
©1996 PEP Modular Computers GmbH March 12, 1996 Page 2 - 5
2
Chapter 2 SMART-BASE
2.2 Board Overview
Front view
J13 J1
DC/DC
BU2
BU1 SCR2 SCR1 SCR5 SCR4 SCR3
ST6 ST4 ST2
ST5 ST3 ST1 ST7
DRAM
EPROM/FLASH
(SRAM)
68302FC20
I/O Controller
SPI
I/O Slot #2 I/O Slot #1 I/O Slot #0
Timer
I/O RS232
24V DC
RS485 Isolated
(PROFIBUS)
Status Piggyback SMPBLED
BU3
Battery
Piggyback
SMPBBAT
SMART Modules
J6
UD LD
EPROM/FLASH
Rear View
J15
2
1
3
Optional
FLASH
RTC Quartz
RTC
Full DUPLEX RS485
(Option)
RS232 Driver