NI PXI-2532 Relay Replacement

The NI PXI-2532 uses reed relays.

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

Relay Manufacturer	Part Number
Meder	CRR05-1A

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. 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.

      Top Mezzanine Board Relay Locations

      Channel Name	Relay Name	Channel Name	Relay Name	Channel Name	Relay Name	Channel Name	Relay Name
      B8ROC0	K144	B10R0C0	K176	B12R0CO	K193	B14R0C0	K225
      B8ROC1	K143	B10R0C1	K175	B12R0C1	K194	B14R0C1	K226
      B8ROC2	K142	B10R0C2	K174	B12R0C2	K195	B14R0C2	K227
      B8ROC3	K141	B10R0C3	K173	B12R0C3	K196	B14R0C3	K228
      B8ROC4	K140	B10R0C4	K172	B12R0C4	K197	B14R0C4	K229
      B8ROC5	K139	B10R0C5	K171	B12R0C5	K198	B14R0C5	K230
      B8ROC6	K138	B10R0C6	K170	B12R0C6	K199	B14R0C6	K231
      B8ROC7	K137	B10R0C7	K169	B12R0C7	K200	B14R0C7	K232
      B8ROC8	K136	B10R0C8	K168	B12R0C8	K201	B14R0C8	K233
      B8ROC9	K135	B10R0C9	K167	B12R0C9	K202	B14R0C9	K234
      B8ROC10	K134	B10R0C10	K166	B12R0C1O	K203	B14R0C10	K235
      B8ROC11	K133	B10R0C11	K165	B12R0C11	K204	B14R0C11	K236
      B8ROC12	K132	B10R0C12	K164	B12R0C12	K205	B14R0C12	K237
      B8ROC13	K131	B10R0C13	K163	B12R0C13	K206	B14R0C13	K238
      B8ROC14	K130	B10R0C14	K162	B12R0C14	K207	B14R0C14	K239
      B8ROC15	K129	B10R0C15	K161	B12R0C15	K208	B14R0C15	K240
      B8R1C0	K1	B10R1C0	K33	B12R1C0	K80	B14R1C0	K112
      B8R1C1	K2	B10R1C1	K34	B12R1C1	K79	B14R1C1	K111
      B8R1C2	K3	B10R1C2	K35	B12R1C2	K78	B14R1C2	K110
      B8R1C3	K4	B10R1C3	K36	B12R1C3	K77	B14R1C3	K109
      B8R1C4	K5	B10R1C4	K37	B12R1C4	K76	B14R1C4	K108
      B8R1C5	K6	B10R1C5	K38	B12R1C5	K75	B14R1C5	K107
      B8R1C6	K7	B10R1C6	K39	B12R1C6	K74	B14R1C6	K106
      B8R1C7	K8	B10R1C7	K40	B12R1C7	K73	B14R1C7	K105
      B8R1C8	K9	B10R1C8	K41	B12R1C8	K72	B14R1C8	K104
      B8R1C9	K10	B10R1C9	K42	B12R1C9	K71	B14R1C9	K103
      B8R1C10	K11	B10R1C10	K43	B12R1C10	K70	B14R1C10	K102
      B8R1C11	K12	B10R1C11	K44	B12R1C11	K69	B14R1C11	K101
      B8R1C12	K13	B10R1C12	K45	B12R1C12	K68	B14R1C12	K100
      B8R1C13	K14	B10R1C13	K46	B12R1C13	K67	B14R1C13	K99
      B8R1C14	K15	B10R1C14	K47	B12R1C14	K66	B14R1C14	K98
      B8R1C15	K16	B10R1C15	K48	B12R1C15	K65	B14R1C15	K97
      B9R0CO	K160	B11R0CO	K192	B13R0C0	K209	B15R0C0	K241
      B9R0C1	K159	B11R0C1	K191	B13R0C1	K210	B15R0C1	K242
      B9R0C2	K158	B11R0C2	K190	B13R0C2	K211	B15R0C2	K243
      B9R0C3	K157	B11R0C3	K189	B13R0C3	K212	B15R0C3	K244
      B9R0C4	K156	B11R0C4	K188	B13R0C4	K213	B15R0C4	K245
      B9R0C5	K155	B11R0C5	K187	B13R0C5	K214	B15R0C5	K246
      B9R0C6	K154	B11R0C6	K186	B13R0C6	K215	B15R0C6	K247
      B9R0C7	K153	B11R0C7	K185	B13R0C7	K216	B15R0C7	K248
      B9R0C8	K152	B11R0C8	K184	B13R0C8	K217	B15R0C8	K249
      B9R0C9	K151	B11R0C9	K183	B13R0C9	K218	B15R0C9	K250
      B9R0C10	K150	B11R0C1O	K182	B13R0C10	K219	B15R0C10	K251
      B9R0C11	K149	B11R0C11	K181	B13R0C11	K220	B15R0C11	K252
      B9R0C12	K148	B11R0C12	K180	B13R0C12	K221	B15R0C012	K253
      B9R0C13	K147	B11R0C13	K179	B13R0C13	K222	B15R0C13	K254
      B9R0C14	K146	B11R0C14	K178	B13R0C14	K223	B15R0C14	K255
      B9R0C15	K145	B11R0C15	K177	B13R0C15	K224	B15R0C15	K256
      B9R1C0	K17	B11R1C0	K49	B13R1C0	K96	B15R1C0	K128
      B9R1C1	K18	B11R1C1	K50	B13R1C1	K95	B15R1C1	K127
      B9R1C2	K19	B11R1C2	K51	B13R1C2	K94	B15R1C2	K126
      B9R1C3	K20	B11R1C3	K52	B13R1C3	K93	B15R1C3	K125
      B9R1C4	K21	B11R1C4	K53	B13R1C4	K92	B15R1C4	K124
      B9R1C5	K22	B11R1C5	K54	B13R1C5	K91	B15R1C5	K123
      B9R1C6	K23	B11R1C6	K55	B13R1C6	K90	B15R1C6	K122
      B9R1C7	K24	B11R1C7	K56	B13R1C7	K89	B15R1C7	K121
      B9R1C8	K25	B11R1C8	K57	B13R1C8	K88	B15R1C8	K120
      B9R1C9	K26	B11R1C9	K58	B13R1C9	K87	B15R1C9	K119
      B9R1C10	K27	B11R1C10	K59	B13R1C10	K86	B15R1C10	K118
      B9R1C11	K28	B11R1C11	K60	B13R1C11	K85	B15R1C11	K117
      B9R1C12	K29	B11R1C12	K61	B13R1C12	K84	B15R1C12	K116
      B9R1C13	K30	B11R1C13	K62	B13R1C13	K83	B15R1C13	K115
      B9R1C14	K31	B11R1C14	K63	B13R1C14	K82	B15R1C14	K114
      B9R1C15	K32	B11R1C15	K64	B13R1C15	K81	B15R1C15	K113

      Bottom Mezzanine Board Relay Locations

      Channel Name	Relay Name	Channel Name	Relay Name	Channel Name	Relay Name	Channel Name	Relay Name
      BOROC0	K144	B2R0C0	K176	B4ROCO	K193	B6R0C0	K225
      BOROC1	K143	B2R0C1	K175	B4ROC1	K194	B6R0C1	K226
      BOROC2	K142	B2R0C2	K174	B4ROC2	K195	B6R0C2	K227
      BOROC3	K141	B2R0C3	K173	B4ROC3	K196	B6R0C3	K228
      BOROC4	K140	B2R0C4	K172	B4ROC4	K197	B6R0C4	K229
      BOROC5	K139	B2R0C5	K171	B4ROC5	K198	B6R0C5	K230
      BOROC6	K138	B2R0C6	K170	B4ROC6	K199	B6R0C6	K231
      BOROC7	K137	B2R0C7	K169	B4ROC7	K200	B6R0C7	K232
      BOROC8	K136	B2R0C8	K168	B4ROC8	K201	B6R0C8	K233
      BOROC9	K135	B2R0C9	K167	B4ROC9	K202	B6R0C9	K234
      BOROC10	K134	B2R0C10	K166	B4ROC1O	K203	B6R0C10	K235
      BOROC11	K133	B2R0C11	K165	B4ROC11	K204	B6R0C11	K236
      BOROC12	K132	B2R0C12	K164	B4ROC12	K205	B6R0C12	K237
      BOROC13	K131	B2R0C13	K163	B4ROC13	K206	B6R0C13	K238
      BOROC14	K130	B2R0C14	K162	B4ROC14	K207	B6R0C14	K239
      BOROC15	K129	B2R0C15	K161	B4ROC15	K208	B6R0C15	K240
      BOR1C0	K1	B2R1C0	K33	B4R1C0	K80	B6R1C0	K112
      BOR1C1	K2	B2R1C1	K34	B4R1C1	K79	B6R1C1	K111
      BOR1C2	K3	B2R1C2	K35	B4R1C2	K78	B6R1C3	K110
      BOR1C3	K4	B2R1C3	K36	B4R1C3	K77	B6R1C3	K109
      BOR1C4	K5	B2R1C4	K37	B4R1C4	K76	B6R1C4	K108
      BOR1C5	K6	B2R1C5	K38	B4R1C5	K75	B6R1C5	K107
      BOR1C6	K7	B2R1C6	K39	B4R1C6	K74	B6R1C6	K106
      BOR1C7	K8	B2R1C7	K40	B4R1C7	K73	B6R1C7	K105
      BOR1C8	K9	B2R1C8	K41	B4R1C8	K72	B6R1C8	K104
      BOR1C9	K10	B2R1C9	K42	B4R1C9	K71	B6R1C9	K103
      BOR1C10	K11	B2R1C10	K43	B4R1C10	K70	B6R1C10	K102
      BOR1C11	K12	B2R1C11	K44	B4R1C11	K69	B6R1C11	K101
      BOR1C12	K13	B2R1C12	K45	B4R1C12	K68	B6R1C12	K100
      BOR1C13	K14	B2R1C13	K46	B4R1C13	K67	B6R1C13	K99
      BOR1C14	K15	B2R1C14	K47	B4R1C14	K66	B6R1C14	K98
      BOR1C15	K16	B2R1C15	K48	B4R1C15	K65	B6R1C15	K97
      B1ROCO	K160	B3ROC0	K192	B5R0C0	K209	B7R0C0	K241
      B1ROC1	K159	B3ROC1	K191	B5R0C1	K210	B7R0C1	K242
      B1ROC2	K158	B3ROC2	K190	B5R0C2	K211	B7R0C2	K243
      B1ROC3	K157	B3ROC3	K189	B5R0C3	K212	B7R0C3	K244
      B1ROC4	K156	B3ROC4	K188	B5R0C4	K213	B7R0C4	K245
      B1ROC5	K155	B3ROC5	K187	B5R0C5	K214	B7R0C5	K246
      B1ROC6	K154	B3ROC6	K186	B5R0C6	K215	B7R0C6	K247
      B1ROC7	K153	B3ROC7	K185	B5R0C7	K216	B7R0C7	K248
      B1ROC8	K152	B3ROC8	K184	B5R0C8	K217	B7R0C8	K249
      B1ROC9	K151	B3ROC9	K183	B5R0C9	K218	B7R0C9	K250
      B1ROC1O	K150	B3ROC10	K182	B5R0C10	K219	B7R0C10	K251
      B1ROC11	K149	B3ROC11	K181	B5R0C11	K220	B7R0C11	K252
      B1ROC12	K148	B3ROC12	K180	B5R0C12	K221	B7R0C12	K253
      B1ROC13	K147	B3ROC13	K179	B5R0C13	K222	B7R0C13	K254
      B1ROC14	K146	B3ROC14	K178	B5R0C14	K223	B7R0C14	K255
      B1ROC15	K145	B3ROC15	K177	B5R0C15	K224	B7R0C15	K256
      B1R1CO	K17	B3R1CO	K49	B5R1CO	K96	B7R1C0	K128
      B1R1C1	K18	B3R1C1	K50	B5R1C1	K95	B7R1C1	K127
      B1R1C2	K19	B3R1C2	K51	B5R1C2	K94	B7R1C2	K126
      B1R1C3	K20	B3R1C3	K52	B5R1C3	K93	B7R1C3	K125
      B1R1C4	K21	B3R1C4	K53	B5R1C4	K92	B7R1C4	K124
      B1R1C5	K22	B3R1C5	K54	B5R1C5	K91	B7R1C5	K123
      B1R1C6	K23	B3R1C6	K55	B5R1C6	K90	B7R1C6	K122
      B1R1C7	K24	B3R1C7	K56	B5R1C7	K89	B7R1C7	K121
      B1R1C8	K25	B3R1C8	K57	B5R1C8	K88	B7R1C8	K120
      B1R1C9	K26	B3R1C9	K58	B5R1C9	K87	B7R1C9	K119
      B1R1C1O	K27	B3R1C1O	K59	B5R1C1O	K86	B7R1C10	K118
      B1R1C11	K28	B3R1C11	K60	B5R1C11	K85	B7R1C11	K117
      B1R1C12	K29	B3R1C12	K61	B5R1C12	K84	B7R1C12	K116
      B1R1C13	K30	B3R1C13	K62	B5R1C13	K83	B7R1C13	K115
      B1R1C14	K31	B3R1C14	K63	B5R1C14	K82	B7R1C14	K114
      B1R1C15	K32	B3R1C15	K64	B5R1C15	K81	B7R1C15	K113

   3. Use the relay name to locate the relay on the mezzanine board.

      Note  Relay names are printed on the mezzanine boards.

3. Refer to Top Mezzanine Board Relay Replacement if the relay you want to replace is located on the top mezzanine board. Refer to Bottom Mezzanine Board Relay Replacement if the relay you want to replace is located on the bottom mezzanine board.

Top Mezzanine Board Relay Replacement

1. Remove the top mezzanine board screws.
   
   

   1 Mezzanine Board Screws 2 Driver Board

2. Separate the top mezzanine board from the driver board and retain the plastic spacers from between the boards. Do not remove the plastic lead cover.
   
   

   1 Plastic Spacers 2 Plastic Lead Cover

3. Use a hot air station to replace the relays.

   Note  The replacement relay pads must be pre-tinned.

4. Reconnect the top mezzanine board to the driver board by aligning pin holes 179 and 180 on the J4 and J5 connectors of the top mezzanine board with pins 179 and 180 of the J3 and J4 connectors on the driver board. Fold the mezzanine board over onto the driver board as shown in the following figure. Leave approximately 64 mm of clearance between the mezzanine board and the driver board. Do not press the boards together.
   
   

   1 Mezzanine Board J4 Connector 2 Mezzanine Board J5 Connector 3 Driver Board J3 Connector 4 Driver Board J4 Connector

5. Replace the plastic spacers between the driver board and top mezzanine board.
6. Secure the top mezzanine board to the driver board using the screws from step 1.

Bottom Mezzanine Board Relay Replacement

1. Remove the ejector handle assembly screw. Do not remove the plastic lead cover.
   
   

   1 Ejector Handle Screw 2 Plastic Lead Cover 3 Ejector Handle Assembly

2. Remove the mezzanine board screws.
   
   

   1 Mezzanine Board Screws 2 Driver Board

3. Disconnect the PCB interconnect cable by lifting the PCB cable latch on the J2 connector.
   
   

   1 J2 Connector 2 PCB Interconnect Cable 3 PCB Cable Latch

4. Separate the daughterboard assembly from the CMI bracket.
   
   

   1 CMI Bracket 2 Daughterboard Assembly

5. Separate the bottom mezzanine board from the driver board and retain the plastic spacers from between the boards.
   
   

   1 Plastic Spacers 2 Driver Board

6. Use a hot air station to replace the relays.

   Note  The replacement relay pads must be pre-tinned.

7. Reconnect the bottom mezzanine board to the driver board by aligning pin holes 179 and 180 on the J4 and J5 connectors of the bottom mezzanine board with pins 179 and 180 of the J3 and J4 connectors on the driver board. Fold the mezzanine board over onto the driver board as shown in the following figure. Leave approximately 64 mm of clearance between the mezzanine board and the driver board. Do not press the boards together.
   
   

   1 Mezzanine Board J4 Connector 2 Mezzanine Board J5 Connector 3 Driver Board J3 Connector 4 Driver Board J4 Connector

8. Connect the PCB interconnect cable to the J2 connector on the bottom mezzanine board.
9. Reconnect the daughterboard to the CMI bracket.
10. Replace the plastic spacers between the driver board and bottom mezzanine board.
11. Secure the daughterboard assembly to the CMI bracket using the screws from step 2.
12. Replace the ejector handle assembly screw from step 1.

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.