PXIe-2529 Overview

PXIe-2529 Pinout


1378

Table 1. Signal Descriptions
Signal Description
Bx Bank
Cx+ Positive column connection
Cx- Negative column connection
GND Ground connection
Rx+ Positive row connection
Rx- Negative row connection
RSVD Reserved, do not connect
TRIG IN Trigger input connection
TRIG OUT Trigger output connection
— No connection

PXIe-2529 Topology

Matrix Configurations

The module can be used in the following matrix configurations:

  • 2-wire 4x32 Matrix
  • 2-wire 8x16 Matrix
  • 1-wire dual 4x16 Matrix

Each configuration supports immediate and scanning operation modes.

Relay Names

Bank 1 Relays Bank 2 Relays
B0R0C0...B0R0C15 B1R0C0...B1R0C15
B0R1C0...B0R1C15 B1R1C0...B1R1C15
B0R2C0...B0R2C15 B1R2C0...B1R2C15
B0R3C0...B0R3C15 B1R3C0...B1R3C15

1-Wire 4x32 Matrix

Module software name: 2529/2-Wire 4x32 Matrix (NISWITCH_TOPOLOGY_2529_2_WIRE_4X32_MATRIX)

Hardware Diagram


1378

Making a Connection

In this topology, you can connect any row to any column. When connecting signals to r1, you would connect them to R1+ and R1– in the terminal block. When connecting signals to c0, you would connect them to C0+ and C0– in the terminal block.

Connect the channels using the niSwitch Connect Channels VI or the niSwitch_Connect. For example, to connect row 1 to column 1, call the niSwitch Connect Channels VI or the niSwitch_Connect function with the channel 1 parameter set to r1 and the channel 2 parameter set to c1.

When scanning the module in 4×32 matrix topology, a typical scan list entry could be r1->c20;. This entry routes the signal connected to row 1 to column 20.

Terminal Block Connections


1378

The NI TB-2634 and NI TB-2636 terminal blocks configure the module as a 2-wire 4×32 matrix.

The following table lists the module pins and their associated column connections.

Connection Pins Connection Pins Connection Pins Connection Pins
C0+ B24 C8+ B19 C16+ B14 C24+ B9
C0- A24 C8- A19 C16- A14 C24- A9
C1+ B23 C9+ B18 C17+ B13 C25+ B8
C1- A23 C9- A18 C17- A13 C25- A8
C2+ B22 C10+ B17 C18+ B12 C26+ B7
C2- A22 C10- A17 C18- A12 C26- A7
C3+ B21 C11+ B16 C19+ B11 C27+ B6
C3- A21 C11- A16 C19- A11 C27- A6
C4+ C24 C12+ C19 C20+ C14 C28+ C9
C4- D24 C12- D19 C20- D14 C28- D9
C5+ C23 C13+ C18 C21+ C13 C29+ C8
C5- D23 C13- D18 C21- D13 C29- D8
C6+ C22 C14+ C17 C22+ C12 C30+ C7
C6- D22 C14- D17 C22- D12 C30- D7
C7+ C21 C15+ C16 C23+ C11 C31+ C6
C7- D21 C15- D16 C23- D11 C32- D6

The following table lists the module pins that the NI TB-2634 and NI TB-2636 short and the row connections created.

Connection Pins Connection Pins Connection Pins Connection Pins
R0+ B25,B15 R1+ C25,C15 R2+ B20,B10 R3+ C20,C10
R0- A25,A15 R1- D25,D15 R2- A20,A10 R3- D20,D10

2-Wire 8x16 Matrix

Module software name: 2529/2-Wire 8x16 Matrix (NISWITCH_TOPOLOGY_2529_2_WIRE_8X16_MATRIX)

Hardware Diagram


1378

Making a Connection

In this topology, you can connect any row to any column. When connecting signals to r1, you would connect them to R1+ and R1– in the terminal block. When connecting signals to c0, you would connect them to C0+ and C0– in the terminal block.

Connect the channels using the niSwitch Connect Channels VI or the niSwitch_Connect. For example, to connect row 1 to column 1, call the niSwitch Connect Channels VI or the niSwitch_Connect function with the channel 1 parameter set to r1 and the channel 2 parameter set to c1.

When scanning the module in 8×16 matrix topology, a typical scan list entry could be r5->c1;. This entry routes the signal connected to row 5 to column 1.

Terminal Block Connections


1378

The following table lists the module pins that the NI TB-2635 terminal block shorts and the column connections created. If you do not use the NI TB-2635 terminal block, short the pins externally to achieve a 2-wire 8×16 matrix topology. Refer to the module pinout for pin locations.

Connection Pins Connection Pins Connection Pins Connection Pins
C0+ B24, B14 C4+ C24,C14 C8+ B19,B9 C12+ C19,C9
C0- A24,A14 C4- D24,D14 C8- A19,A9 C12- D19,D9
C1+ B23,B13 C5+ C23,C13 C9+ B18,B8 C13+ C18,C8
C1- A23,A13 C5- D23,D13 C9- A18,A8 C13- D18,D8
C2+ B22,B12 C6+ C22,C12 C10+ B17,B7 C14+ C17,C7
C2- A22,A12 C6- D22,D12 C10- A17,A7 C14- D17,D7
C3+ B21,B11 C7+ C21,C11 C11+ B16,B6 C15+ C16,C6
C3- A21,A11 C7- D21,D11 C11- A16,A6 C15- D16,D6

The following table lists the module pins and their associated row connection.

Connection Pins Connection Pins Connection Pins Connection Pins
R0+ B25 R2+ B20 R4+ B15 R6+ B10
R0- A25 R2- A20 R4- A15 R6- A10
R1+ C25 R3+ C20 R5+ C15 R7+ C10
R1- D25 R3- D20 R5- D15 R7- D10

2-Wire Dual 4x16 Matrix

Module software name: 2529/2-Wire Dual 4x16 Matrix (NISWITCH_TOPOLOGY_2529_2_WIRE_DUAL_4X16_MATRIX)

Hardware Diagram


1378

Making a Connection

The module in this topology creates two banks of 4×16 matrices. You can only connect rows and columns to rows and columns in the same bank. For more information about how to use the module in a dual 4×16 matrix configuration, visit ni.com/info and enter the info code, exudrg.

Connect the channels using the niSwitch Connect Channels VI or the niSwitch_Connect. For example, to connect bank 0 row 1 to bank 0 column 1, call the niSwitch Connect Channels VI or the niSwitch_Connect function with the channel 1 parameter set to b0r1 and the channel 2 parameter set to b0c1.

When scanning the module in dual 4×16 matrix topology, a typical scan list entry could be b0r1->b0c1. This entry routes the signal connected to bank 0 row 1 to bank 0 column 1.

Note You can, for example, connect b0r1 to b0c0; however, you cannot connect b0r1 directly to b1c1 in this topology. When connecting signals to b0r1, you would connect them to B0R1+ and B0R1– in the terminal block. When connecting signals to b0c0, you would connect them to B0C0+ and B0C0– in the terminal block.

Bank Connection Diagram


1378

PXIe-2529 Matrix Expansion

You can expand the module matrix using either the NI TB-2634, NI TB-2635, or the NI TB-2636 terminal block. The terminal block you are using determines the matrix expansion procedure.

Terminal Block Toplogy (Row × Column)
NI TB-2634 2-wire 4×32, 2-wire dual 4×16
NI TB-2635 2-wire 8×16
NI TB-2636 2-wire 4×32

Using the NI TB-2634

The NI TB-2634 ships with three 2×16 ribbon cable connectors. You will need to supply and attach your own ribbon cables.

To expand the module you will need the following items:

  • Ribbon cable connectors
  • Ribbon cable
  • Two or more NI TB-2634 terminal blocks
  • Two or more switch modules

Terminal Reference


1378

Expanding the Module Columns

Complete the following steps to expand the module columns using an NI TB-2634 terminal block.

  1. Connect one end of the ribbon cable to the row ribbon cable header on one NI TB-2634.
  2. Connect the ribbon cable to the row ribbon cable header on another NI TB-2634.
  3. (Optional) To further expand the columns, attach another connector to the ribbon cable, and repeat the previous step.

1378

Expanding the Module Rows

Complete the following steps to expand the module rows using an NI TB-2634 terminal block.

  1. Connect one end of the ribbon cable to the first column ribbon cable header on one NI TB-2634.
  2. Connect the ribbon cable to the first column ribbon cable header on another NI TB-2634.
  3. (Optional) To further expand the rows, attach another connector to the ribbon cable, and repeat the previous step.
  4. Repeat the previous steps to connect the second column ribbon cable headers on the NI TB-2634 terminal blocks.

Using the NI TB-2635

Use the NI TB-2635 and bare wire to expand the module.

  • Bare wire
  • Ribbon cable
  • Two or more NI TB-2635 terminal blocks
  • Two or more switch modules

Terminal Reference


1378

Expanding the Module Columns

Complete the following steps to expand the module columns using an NI TB-2634 terminal block.

  1. Connect one end of the bare wire to a row screw terminal on one NI TB-2635.
  2. Connect the other end of the bare wire to the corresponding row screw terminal on another NI TB-2635.
  3. (Optional) To expand module columns further, attach another bare wire to the row screw terminal you accessed in the previous step. Connect the other end of the bare wire to the corresponding row screw terminal on another NI TB-2635.
  4. Repeat the previous steps for all rows.

Expanding the Module Rows

Complete the following steps to expand the module rows using an NI TB-2635 terminal block.

  1. Connect one end of the bare wire to a column screw terminal on one NI TB-2635.
  2. Connect the other end of the bare wire to the corresponding column screw terminal on another NI TB-2635.
  3. (Optional) To further expand the rows, attach another bare wire to the column screw terminal you accessed in the previous step. Connect the other end of the bare wire to the corresponding column screw terminal on another NI TB-2635.
  4. Repeat the previous steps for all columns.

Using the NI TB-2636

Use the NI TB-2636 and bare wire to expand the module.

  • Bare wire
  • Ribbon cable
  • Two or more NI TB-2636 terminal blocks
  • Two or more switch modules

Terminal Reference


1378

Expanding the Module Columns

Complete the following steps to expand the module columns using an NI TB-2634 terminal block.

  1. Connect one end of the bare wire to a row screw terminal on one NI TB-2636.
  2. Connect the other end of the bare wire to the corresponding row screw terminal on another NI TB-2636.
  3. (Optional) To expand module columns further, attach another bare wire to the row screw terminal you accessed in the previous step. Connect the other end of the bare wire to the corresponding row screw terminal on another NI TB-2636.
  4. Repeat the previous steps for all rows.

Expanding the Module Rows

Complete the following steps to expand the module rows using an NI TB-2636 terminal block.

  1. Connect one end of the bare wire to a column screw terminal on one NI TB-2636.
  2. Connect the other end of the bare wire to the corresponding column screw terminal on another NI TB-2636.
  3. (Optional) To further expand the rows, attach another bare wire to the column screw terminal you accessed in the previous step. Connect the other end of the bare wire to the corresponding column screw terminal on another NI TB-2636.
  4. Repeat the previous steps for all columns.

PXIe-2529 Relay Replacement

The module uses electromechanical armature relays.

Relay Manufacturer Part
Aromat (NAiS) AGQ210A4H

Disassemble the Module

Complete the following sets of steps to disassemble your module, replace a failed relay, and reassemble your module.

  1. Ground yourself using a grounding strap or a ground connected to your PXI chassis.
    Note Properly grounding yourself prevents damage to your module from electrostatic discharge.
  2. Locate the relay you want to replace.
    1. Determine the channel name for the relay using the Bank Connection Diagram for your topology.
    2. Match the channel name to its corresponding relay name using the following tables.
      Table 2. Daughterboard Relay Locations (Top View)
      Channel NameRelay NameChannel NameRelay NameChannel NameRelay NameChannel NameRelay Name
      B0ROC0K72B0R1C0K80B0R2COK88B0R3C0K96
      B0ROC1K71B0R1C1K79B0R2C1K87B0R3C1K95
      B0ROC2K70B0R1C2K78B0R2C2K86B0R3C2K94
      B0ROC3K69B0R1C3K77B0R2C3K85B0R3C3K93
      B0ROC4K1B0R1C4K9B0R2C4K17B0R3C4K25
      B0ROC5K2B0R1C5K10B0R2C5K18B0R3C5K26
      B0ROC6K3B0R1C6K11B0R2C6K19B0R3C6K27
      B0ROC7K4B0R1C7K12B0R2C7K20B0R3C7K28
      B0ROC8K68B0R1C8K76B0R2C8K84B0R3C8K92
      B0ROC9K67B0R1C9K75B0R2C9K83B0R3C9K91
      B0ROC10K66B0R1C10K74B0R2C10K82B0R3C10K90
      B0ROC11K65B0R1C11K73B0R2C11K81B0R3C11K89
      B0ROC12K5B0R1C12K13B0R2C12K21B0R3C12K29
      B0ROC13K6B0R1C13K14B0R2C13K22B0R3C13K30
      B0ROC14K7B0R1C14K15B0R2C14K23B0R3C14K31
      B0ROC15K8B0R1C15K16B0R2C15K24B0R3C15K32
      Table 3. Daughterboard Relay Locations (Bottom View)
      Channel NameRelay NameChannel NameRelay NameChannel NameRelay NameChannel NameRelay Name
      B1ROC0K104B1R1C0K112B1R2COK120B1R3C0K128
      B1ROC1K103B1R1C1K111B1R2C1K119B1R3C1K127
      B1ROC2K102B1R1C2K110B1R2C2K118B1R3C2K126
      B1ROC3K101B1R1C3K109B1R2C3K117B1R3C3K125
      B1ROC4K33B1R1C4K41B1R2C4K49B1R3C4K57
      B1ROC5K34B1R1C5K42B1R2C5K50B1R3C5K58
      B1ROC6K35B1R1C6K43B1R2C6K51B1R3C6K59
      B1ROC7K36B1R1C7K44B1R2C7K52B1R3C7K60
      B1ROC8K100B1R1C8K108B1R2C8K116B1R3C8K124
      B1ROC9K99B1R1C9K107B1R2C9K115B1R3C9K123
      B1ROC10K98B1R1C10K106B1R2C10K114B1R3C10K122
      B1ROC11K97B1R1C11K105B1R2C11K113B1R3C11K121
      B1ROC12K37B1R1C12K45B1R2C12K53B1R3C12K61
      B1ROC13K38B1R1C13K46B1R2C13K54B1R3C13K62
      B1ROC14K39B1R1C14K47B1R2C14K55B1R3C14K63
      B1ROC15K40B1R1C15K48B1R2C15K56B1R3C15K64
    3. Use the relay name to locate the relay on the daughterboard.
      Note Relay names are printed on the PCB.
      Note Older versions of this module might have plastic lead covers that you must remove. The module retains full specifications even if these covers are not reinstalled.
  3. Remove the four screws and two lead covers (if present) that secure the daughterboard to the switch assembly.
  4. To gain access the bottom of the daughterboard, disconnect the PCB interconnect cable by lifting the PCB cable latch on the J1 connector.
  5. Locate the assembly and serial number labels on the board with the relay you want to replace. White labels indicate the board was assembled using lead solder (Sn 63 Pb 37). Green labels indicate the board was assembled using lead-free solder (Sn 96.5 Ag 3.0 Cu 0.5). Lead-free assemblies have assembly numbers ending in L.

Replace the Relay

Make sure you have the following items:
  • Temperature-regulated soldering iron set to 316 °C (600 °F) for lead solder rework or 371 °C (700 °F) for lead-free solder rework
  • 63/37 Tin/Lead solder (flux core) for lead solder rework
  • 96.5/3.0/0.5 Tin/Silver/Copper solder (flux core) for lead-free solder rework
  • Solder wick
  • Fine pick
  • Isopropyl alcohol
  • Cotton swabs
Note NI recommends using lead-free solder for relay replacement on lead-free assemblies, and lead solder for relay replacement on lead assemblies.
Note Do not rework lead assemblies using a lead-free work station. Lead solder from the unit could contaminate the station.
Note If a lead-free assembly is reworked with lead solder, label the assembly to indicate this condition. This rework can prevent the same unit from being reworked later on a lead-free solder station, because it could contaminate the station.

If you have a surface mount rework station, replace the relay as you would any other surface mount part. Otherwise, complete the following steps to replace the relay:

  1. Use the soldering iron and solder wick to remove as much solder from the relay pads as possible. Do not leave the soldering iron on any lead for more than 5 seconds.
    Note If it is necessary to reapply the soldering iron to the pad, allow the connection to cool completely before reapplying the soldering iron.
  2. Apply heat to the pads one at a time, and use the pick to gently pry the relay pins from the pads. Make sure that the solder is molten before prying.
    Note Using excessive force on a soldered pad can result in lifting the PCB trace and ruining the board.
  3. Remove the relay.
  4. Clean the pads with isopropyl alcohol and cotton swabs.
  5. Place the new relay on the PCB pads and solder.
  6. Remove the excess flux with isopropyl alcohol and cotton swabs.
    Note Do not use flux remover to clean the board after relay replacement.

Reassemble the Module

Complete Disassemble the Module in reverse order to reassemble your module.

Note In NI-SWITCH 3.1 or later, you can use the Switch Soft Front Panel to reset the relay count after you have replaced a failed relay. Refer to the Switch Soft Front Panel Help for more information