Barcode Reader User Manual

Installation and Configuration Chapter 2

SC-2043-SG User Manual 2-8 © National Instruments Corporation

Additionally, there are sockets for eight quarter-bridge completion resistors. When inserted, the

quarter-bridge completion resistors connect to the positive inputs of the instrumentation

amplifiers and the -EXn terminals. To configure a channel for quarter-bridge completion, set the

corresponding bridge completion jumper to the HB position and insert your quarter-bridge

completion resistor into the appropriate sockets. The parts locator diagram, Figure 2-1, shows

where these quarter-bridge completion resistor sockets are located. Table 2-8 lists the quarter-

bridge completion resistors and corresponding channels.

Table 2-8. Quarter-Bridge Completion Resistors and Corresponding Channels

Channel Resistor

R52

R36

R20

R54

R37

R23