INSTALLATION INSTRUCTIONS LFH200 Cable

1 INSTALLATION INSTRUCTIONSLFH200 CableThis guide describes how to use the national instruments LFH200 Cable to connect the NI PXI-2569/2570/2571/2575 or scxi -1169/1175 switch module to your system. The LFH200 Cable is available in three configurations: SH200 LFH-4xDB50F-C Recommended for use with the PXI-2569/2570/2571 or scxi -1169. SH200 LFH-4xDB50F-S Recommended for use with the PXI-2575 or scxi -1175. SH200 LFH-BARE WIRE Recommended for termination other than 50-pin female LFH200 Cable has a maximum voltage rating of 60 VDC. When using the LFH200 Cable with switch modules, do not exceed 60.

2 2 Getting Started .. 2 Connecting the LFH200 Cable .. 2 Connectors .. 4 Cable Configurations .. 5SH200 LFH-4xDB50F-C Cable .. 5SH200 LFH-4xDB50F-S 15SH200 LFH-BARE WIRE Cable .. 24 Accessories .. 34 LFH200 Cable INSTALLATION following conventions are used in this guide: The symbol leads you through nested menu items and dialog box options to a final action. The sequence Options Settings General directs you to pull down the Options menu, select the Settings item, and select General from the last dialog icon denotes a note, which alerts you to important icon denotes a caution, which advises you of precautions to take to avoid injury, data loss, or a system text denotes items that you must select or click in the software, such as menu items and dialog box options.

3 Bold text also denotes parameter text denotes variables, emphasis, a cross-reference, or an introduction to a key concept. Italic text also denotes text that is a placeholder for a word or value that you must in this font denotes text or characters that you should enter from the keyboard, sections of code, programming examples, and syntax examples. This font is also used for the proper names of disk drives, paths, directories, programs, subprograms, subroutines, device names, functions, operations, variables, filenames, and StartedThe following items are necessary for connecting the LFH200 Cable : LFH200 Cable NI PXI-2569/2570/2571/2575 or scxi -1169/1175 switch module and documentationConnecting the LFH200 CableComplete the following steps to connect the LFH200 Cable to your switch module and application.

4 Refer to Figures 1 and 2 for illustrations of the LFH200 the LFH200 connector to the connector on the switch the either of the following steps, and refer to Tables 1 through 16 to determine how to connect your signals. Connect the D-SUB connectors to your application. Connect the unterminated wires to your application. national instruments Corporation3 LFH200 Cable INSTALLATION InstructionsFigure 1. SH200 LFH-4xDB50F-C or SH200 LFH-4xDB50F-S CableFigure 2. SH200 LFH-BARE WIRE Cable1 LFH200 Connector2 Thumbscrews3 Cable Leg Label450-Pin Female D-SUB Connectors1 LFH200 Connector2 Thumbscrews3 Cable Leg Label425 Unterminated, Tinned, and Stripped Wires41231243 LFH200 Cable INSTALLATION Cable in this kit connects an LFH200 connector to four, 50-pin female D-SUB connectors marked P1 P4, or eight bundles, leg J0 J7, of unterminated, tinned, and stripped wires.

5 The LFH200 connector provides connection to the switch module. The 50-pin female D-SUB connectors and unterminated wires provide connection to your application. Figures 3 and 4 show the pinouts for these 3. LFH200 ConnectorFigure 4. 50-Pin Female D-SUB ConnectorPin 100 Pin 1 Pin 50 Pin 51 Pin 101 Pin 200 Pin 150 Pin 151 Pin 1 Pin 34 Pin 17 Pin 50 Pin 18 Pin 33 national instruments Corporation5 LFH200 Cable INSTALLATION InstructionsCable ConfigurationsThe LFH200 Cable is available in three configurations: SH200 LFH-4xDB50F-C SH200 LFH-4xDB50F-S SH200 LFH-BARE WIREThe following sections describe each of the LFH200 Cable CableThe SH200 LFH-4xDB50F-C Cable is recommended for connecting the PXI-2569/2570/2571 or scxi -1169 to your system.

6 One end of the Cable terminates with an LFH200 connector which connects to the switch module. The other end of the Cable terminates with four 50-pin female D-SUB using the SH200 LFH-4xDB50F-C Cable with the PXI-2569 or scxi -1169, each Channel and its corresponding Common form a twisted pair. For example, CH0 is paired with COM0, and CH1 is paired with COM1. Figure 5 illustrates how this pairing relates to the pins on the PXI-2569 or 5. Twisted Pair Groupings for the PXI-2569 or scxi -1169 When using the SH200 LFH-4xDB50F-C Cable with the PXI-2570, each Channel and its corresponding NO (Normally Open) connection form a twisted pair.

7 The NC (Normally Closed) connection is twisted with NO CONNECT wires. For example, COM0 is twisted with NO0, and NC0 is twisted with a NO CONNECT wire. Figure 6 illustrates how this pairing relates to the pins on the Cable INSTALLATION 6. Twisted Pair Groupings for the PXI-2570 When using the SH200 LFH-4xDB50F-C Cable with the PXI-2571 the twisted pairs vary depending on the channel. For the first 50 Channels, each COM and its corresponding NO connection form a twisted pair. However, for the remaining 16 channels, the three components (NC, COM, and NO) are each twisted with a NC component from the first 50 Channels.

8 For example, COM0 is twisted with NO0, and NC0 is twisted with NC50. COM1 is twisted with NO1, and NC1 is twisted with COM50. COM2 is twisted with NO2, and NC2 is twisted with NO50. Figure 7 illustrates how this pairing relates to the pins on the 7. Twisted Pair Groupings for the PXI-2571 Refer to the NI Switches Help for a complete listing of channel names and following tables list the pin assignments for the SH200 LFH-4xDB50F-C CONNECTNC2NC3NC4150151149152148153147154 14615551505249534854475546 COM0 COM1 COM2 COM3 COM4NO0NO1NO2NO3NO4NO CONNECTNO CONNECTNO CONNECTNO CONNECTNC0NC1NC2NC3NC4150151149152148153 14715414615551505249534854475546NC50 COM50NO50NC51 COM51 COM0 COM1 COM2 COM3 COM4NO0NO1NO2NO3NO4 national instruments Corporation7 LFH200 Cable INSTALLATION InstructionsTable 1.

9 Pin Assignment for SH200 LFH-4xDB50F-C P150-Pin D-SUB P1 CablePXI-2569, scxi -1169 ChannelPXI-2570 ChannelPXI-2571 ChannelLFH Pin50-Pin D-SUB Pin2650 COM49NO24NO242748 COM47NO23NO232846 COM45NO22NO222944 COM43NO21NO213042 COM41NO20NO203140 COM39NO19NO193238 COM37NO18NO183336 COM35NO17NO173434 COM33NO16NO163519 COM31NO15NO153621 COM29NO14NO143723 COM27NO13NO133825 COM25NO12NO123927 COM23NO11NO114029 COM21NO10NO104131 COM19NO9NO94233 COM17NO8NO84316 COM15NO7NO74414 COM13NO6NO64512 COM11NO5NO54610 COM9NO4NO4478 COM7NO3NO3486 COM5NO2NO2494 COM3NO1NO1502 COM1NO0NO0 LFH200 Cable INSTALLATION 1.

10 Pin Assignment for SH200 LFH-4xDB50F-C P1 (Continued)50-Pin D-SUB P1 CablePXI-2569, scxi -1169 ChannelPXI-2570 ChannelPXI-2571 ChannelLFH Pin50-Pin D-SUB Pin national instruments Corporation9 LFH200 Cable INSTALLATION InstructionsTable 2. Pin Assignment for SH200 LFH-4xDB50F-C P250-Pin D-SUB P2 CablePXI-2569, scxi -1169 ChannelPXI-2570 ChannelPXI-2571 ChannelLFH Pin50-Pin D-SUB Pin12650 COM48NC24NC2412748 COM46NC23NC2312846 COM44NC22NC2212944 COM42NC21NC2113042 COM40NC20NC2013140 COM38NC19NC1913238 COM36NC18NC1813336 COM34NC17NC1713434 COM32NC16NC1613519 COM30NC15NC1513621 COM28NC14NC1413723 COM26NC13NC1313825 COM24NC12NC1213927 COM22NC11NC1114029 COM20NC10NC1014131 COM18NC9NC914233 COM16NC8NC814316 COM14NC7NC714414 COM12NC6NC614512 COM10NC5NC514610 COM8NC4NC41478 COM6NC3NC31486 COM4NC2NC21494 COM2NC1NC11502 COM0NC0NC01511CH0 NC50 LFH200 Cable INSTALLATION COM501535CH4