NI PXI-2530 Relay Replacement

The NI PXI-2530 uses reed relays.

Refer to the following table for information about ordering replacement relays.

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

Disassemble the Switch Module

1. Ground yourself using a grounding strap or a ground connected to your PXI chassis.

   Note  Properly grounding yourself prevents damage to your switch module from electrostatic discharge.

2. Remove the four screws that secure the top and bottom daughterboards to the switch assembly.
3. Remove the insulator and the plastic spacers that separate the daughterboards.
   
   

   1 Screws 2 Insulator 3 Plastic Spacers

4. To access the daughterboards, disconnect the PCB interconnect cable by lifting the PCB cable latch on the J1 connector.
   
   

   1 PCB Interconnect Cable 2 PCB Cable Latch 3 J1 Connector

5. Carefully disconnect connectors J7 and J1 on the bottom daughterboard from connectors J8 and J1, respectively, on the top daughterboard.
   
   
   
   

   1 J7 Connector 2 J1 Connector 3 Bottom Daughterboard 4 J8 Connector 5 J1 Connector 6 Top Daughterboard

6. Refer to the following figures to locate the relay you want to replace.

   Top Daughterboard

   Bottom Daughterboard

Replace the Relay

Make sure you have the following:

• Temperature-regulated soldering iron set to 300 °C
• 60/40 Lead/Tin solder (flux core)
• Solder wick
• Isopropyl alcohol
• Cotton swabs

Replace the relay as you would any other through-hole part.

Reassemble the Switch Module

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

Tip  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.