Owner manual

VSBC-32 Serial Interface Piggybacks

ID 21168, Rev. 04 Page B - 9© PEP Modular Computers GmbH

B.6 SI-PB485-ISO

The SI-PB485-ISO is an RS-485 optoisolated interface piggyback for 2-wire half-duplex

(PROFIBUS) connection. It has one LED fitted indicating data transmission.

B.6.1 Specifications

B.6.2 Front Panel View, Jumper Layout, and Pinout

Figure B-5: SI-PB485-ISO Serial Interface Piggyback

N/C Not connected

On-board termination:

Isolation voltage

Max. baudrate

150ohm, jumper selectable

Optocoupler specified up to 2.5kV

1.5MBaud

Table B-8: SI-PB485-ISO Connector Pinout

Pin Signal Description

1N/C —

2N/C —

3 RxD+/TxD+ Receive/Transmit Data plus

4N/C —

5 DGND Data Ground (GND 5V)

6 VP Voltage Plus (+5V)

7N/C —

8 RxD-/TxD- Receive/Transmit minus

9N/C —

9-pin D-Sub

female

connector

(SCC1)

Pin 1

Pin 5

Pin 6

Pin 9

Transmit

Yellow