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© National Instruments Corporation 2-1 Lab-NB User Manual
Chapter 2
Configuration and Installation
This chapter describes how to configure and install the Lab-NB into your Macintosh computer,
and also includes signal connections to the Lab-NB and cable wiring.
Board Configuration
The Lab-NB contains three jumpers for changing the analog input and output configuration of
the board. The jumpers are shown in the parts locator diagram in Figure 2-1. Jumpers W1 and
W2 configure the two analog outputs. Jumper W3 (not labeled on the board) is used to select the
analog input range. Because of space constraints on the board, the jumper post labels are
missing. To distinguish between the A, B, and C posts of the jumpers, hold the board so that the
component side is facing you, the NuBus connector is down, and the 50-pin I/O connector is on
your right. The posts are then in the order A-B-C from left to right on all three of the horizontal
jumpers, as shown in Figure 2-1.
Note: This same orientation of the board is also assumed in the figures illustrating the
jumper connections (Figures 2-2 and 2-3).