Printed Circuit Board Scb 3 - MTU 12 V 2000 P12 Operating Instructions Manual

2.7 Printed circuit board SCB 3

Purpose and design
Design
1 Component side
2 Soldering side
3 Top view
A yellow LED lights (o flashes) only when data interchange is active at the relevant interface. When there
is no communication at the (connected!) interface, the LED remains dark.
Features
• 2 interfaces as per RS422 or RS232 standard
• Interface are electrically isolated
Use
SCB 3 is used as an interface extension (additional serial interfaces), as an interface converter or as an
amplifier.
4 LED (red) "Printed circuit
board RESET"
5 LED (green) "Ready"
6 LED (yellow) "Interface
1: Receiving and trans‐
mitting line active"
MS150025/02E 2012-10 | General Information | 35
7 LED (yellow) "Interface
2: Receiving and trans‐
mitting line active"
8 Connector RS232 inter‐
face