Chapter 2
Configuration and Installation
2-6
www.ni.com
Figure 2-3.
PXI-1408 Parts Locator Diagram
VIDEO0 Input Mode
VIDEO0 has two different input sources via a BNC connector or a 25-pin
DSUB port and two different input modes—referenced single-ended (RSE)
and differential (DIFF) input. When you use the BNC input for VIDEO0,
set the input mode to RSE (W1 populated). When you use the 25-pin DSUB
port for VIDEO0, set the input mode for either RSE or DIFF.
When in RSE mode, the video input uses one analog input line, which
connects to the video multiplexer circuitry. The negative input to the video
multiplexer is tied internally to analog ground. When in DIFF mode, the
video input uses two analog input signals. One signal connects to the
positive input of the video multiplexer circuitry while the other input
signal connects to the negative input of the video multiplexer circuitry.
Jumper W1 controls the input mode selection, as shown in Figure 2-4.
Unpopulating W1 configures VIDEO0 for DIFF mode. Populating W1
configures VIDEO0 for RSE mode.
1
W2, W3
2
25-Pin DSUB
Connector
3
BNC Connector
4
W1
5
Assembly Number
6
Serial Number
7
J2
8
J4
9
Logical Address
Switch (S1)
10 Product Name
7
8
4
1
10
9
2
3
5
6
