Barcode Reader User Manual

Chapter 3

Signal Connections

This chapter describes the signal connections to the SC-2043-SG board.

I/O Connector Pin Description

Warning: Connections, including any power signals connected to ground and vice versa, that

exceed any of the maximum input or output signal ratings on the SC-2043-SG and

the DAQ board can damage the SC-2043-SG, the DAQ board, and the computer.

National Instruments is

NOT liable for any damages resulting from any such

signal connections.

The SC-2043-SG has two male 50-pin I/O connectors to connect it to a DAQ board. These

connectors, J9 and J10, are labeled Lab/1200 and MIO, respectively. The Lab/1200 connector

(J9) carries the signals between the SC-2043-SG and a Lab/1200 board. The MIO connector

(J10) carries the signals between the SC-2043-SG and an MIO or MIO E Series board. You can

use only one of these connectors to interface to a DAQ board at any time. Figure 2-1 shows the

position of these connectors on the SC-2043-SG board.

Notes: If you are connecting to an MIO or MIO E Series board, you must use the MIO

connector. If you are connecting to a Lab/1200 board, you must use the Lab/1200

connector. These connectors are

NOT pin-for-pin compatible and, therefore, you

must be careful

NOT to use the wrong connector.

Connector W9 is reserved for National Instruments internal use only.

Tables 3-1 and 3-2 show the pin assignments for the SC-2043-SG I/O connectors. These tables

list the pin numbers of the I/O connector and the corresponding signal names for the MIO

connector if you are using an MIO or MIO E Series DAQ board, and for the Lab/1200 connector

if you are using a Lab/1200 Series DAQ board. Tables 3-3 and 3-4 list the MIO and Lab/1200

I/O connector signal summaries, respectively.