PXIe-2524 Overview

1-Wire 128×1 Multiplexer

Making a Connection

All channels route to com0. You can control the channels using the niSwitch Connect Channels VI or the niSwitch_Connect function.

For example, to connect channel 1 to com0, call niSwitch_Connect(vi, "ch1", "com0"). To disconnect channel 1 from com0, call niSwitch_Disconnect(vi, "ch1", "com0").

1-Wire Dual 64×1 Multiplexer

Making a Connection

All channels route to com0. You can control the channels using the niSwitch Connect Channels VI or the niSwitch_Connect function.

For example, to connect channel 1 to com0, call niSwitch_Connect(vi, "ch1", "com0"). To disconnect channel 1 from com0, call niSwitch_Disconnect(vi, "ch1", "com0").

1-Wire Quad 32×1 Multiplexer

Making a Connection

All channels route to com0. You can control the channels using the niSwitch Connect Channels VI or the niSwitch_Connect function.

For example, to connect channel 1 to com0, call niSwitch_Connect(vi, "ch1", "com0"). To disconnect channel 1 from com0, call niSwitch_Disconnect(vi, "ch1", "com0").

1-Wire Octal 16×1 Multiplexer

Making a Connection

All channels route to com0. You can control the channels using the niSwitch Connect Channels VI or the niSwitch_Connect function.

For example, to connect channel 1 to com0, call niSwitch_Connect(vi, "ch1", "com0"). To disconnect channel 1 from com0, call niSwitch_Disconnect(vi, "ch1", "com0").

1-Wire Sixteen 8×1 Multiplexer

Making a Connection

all channels in a given bank route to the corresponding com. You can control the channels using the niSwitch Connect Channels VI or the niSwitch_Connect function.

For example, to connect channel 1 to com0, call niSwitch_Connect(vi, "ch1", "com0"). To disconnect channel 1 from com0, call niSwitch_Disconnect(vi, "ch1", "com0").

1. Ground yourself using a grounding strap or a ground connected to your PXI Express chassis.
   Note Properly grounding yourself prevents damage to your module from electrostatic discharge.
2. Locate the relay you want to replace. Refer to the following figure and table for relay locations.
   
   
   
   

   Table 7. Relay Locations

   Relay Name	Reference Designator	Relay Name	Reference Designator	Relay Name	Reference Designator	Relay Name	Reference Designator	Relay Name	Reference Designator
   kb0s1	K1	kb4s1	K33	kb8s1	K58	kb12s1	K85	kbc01	K12
   kb0s2	K3	kb4s2	K33	kb8s2	K60	kb12s2	K87	kbc23	K19
   kb0s3	K5	kb4s3	K37	kb8s3	K62	kb12s3	K89	kbc45	K23
   kb0s4	K7	kb4s4	K39	kb8s4	K64	kb12s4	K91	kbc67	K66
   kb0com1	K9	kb4com1	K41	kb8com1	K67	kb12com1	K95	kbc89	K93
   kb0com2	K10	kb4com2	K42	kb8com2	K68	kb12com2	K94	kbc1011	K84
   kb1s1	K2	kb5s1	K34	kb9s1	K59	kb13s1	K86	kbc1213	K111
   kb1s2	K4	kb5s2	K36	kb9s2	K61	kb13s2	K88	kbc1415	K102
   kb1s3	K6	kb5s3	K38	kb9s3	K63	kb13s3	K90	kbc02	K11
   kb1s4	K8	kb5s4	K40	kb9s4	K65	kb13s4	K92	kbc46	K75
   kb1com1	K13	kb5com1	K43	kb9com1	K69	kb13com1	K96	kbc810	K16
   kb1com2	K14	kb5com2	K44	kb9com2	K70	kb13com2	K97	kbc1214	K15
   kb2s1	K25	kb6s1	K49	kb10s1	K76	kb14s1	K103	kbc04	K20
   kb2s2	K27	kb6s2	K51	kb10s2	K78	kb14s2	K105	kbc812	K57
   kb2s3	K29	kb6s3	K53	kb10s3	K80	kb14s3	K107	kbc08	K24
   kb2s4	K31	kb6s4	K55	kb10s4	K82	kb14s4	K109
   kb2com1	K18	kb6com1	K46	kb10com1	K72	kb14com1	K99
   kb2com2	K17	kb6com2	K45	kb10com2	K71	kb14com2	K98
   kb3s1	K26	kb7s1	K50	kb11s1	K77	kb15s1	K104
   kb3s2	K28	kb7s2	K52	kb11s2	K79	kb15s2	K106
   kb3s3	K30	kb7s3	K54	kb11s3	K81	kb15s3	K108
   kb3s4	K32	kb7s4	K56	kb11s4	K83	kb15s4	K110
   kb3com1	K22	kb7com1	K48	kb11com1	K74	kb15com1	K100
   kb3com2	K21	kb7com2	K47	kb11com2	K73	kb15com2	K101

3. 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.

Make sure that 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

Complete the following steps to replace a relay:

1. 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.
2. Replace the relay as you would any other through-hole part. Trim the replaced relay to no more than 0.41 mm (0.016 inch) from the PCB.