SWB-2817 Overview

SWB-2817 Pinout

Type A


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Table 1. Signal Descriptions
Signal Description
ABx Analog bus row connection
Cx Column connection
GND Safety interlock ground connection
INTRLK Safety interlock resistor connection
— No connection

Type B


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Table 2. Signal Descriptions
Signal Description
Cx Column connection
GND Safety interlock ground connection
INTRLK Safety interlock resistor connection
— No connection

SWB-2817 Topology

Multiple modules of the same type can be combined. The following table lists possible topologies.

Note You must connect pin 96 (INTERLOCK ENABLE) to pin 48 (GND) with a 500 Ω resistor (500 Ω ±20%, 1/10 W minimum) to allow connection to the analog bus. Refer to the NI SwitchBlock Safety Interlock topic for additional information about this safety feature.
Number of Modules Topology
1 1-Wire 16×22 Matrix
2 1-Wire 16×44 Matrix
3 1-Wire 16×66 Matrix
4 1-Wire 16×88 Matrix
5 1-Wire 16×110 Matrix
6 1-Wire 16×132 Matrix

1-Wire 16×22 Matrix

Module software name: Configured Topology (NISWITCH_TOPOLOGY_CONFIGURED_TOPOLOGY)

Hardware Diagram


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Making a Connection

The immediate operation, the niSwitch Connect Channels VI or the niSwitch_Connect function with parameters card1r2 and c1 result in the following connection:

  • signal connected to CARD1R2 is routed to C1

Relay Names

Refer to the following list for relay names of one module.

  • kCARD1AB0...kCARD1AB15
  • kCARD1R0C0...kCARD1R0C21
  • kCARD1R1C0...kCARD1R1C21
  • kCARD1R2C0...kCARD1R2C21
  • kCARD1R3C0...kCARD1R3C21
  • kCARD1R4C0...kCARD1R4C21
  • kCARD1R5C0...kCARD1R5C21
  • kCARD1R6C0...kCARD1R6C21
  • kCARD1R7C0...kCARD1R7C21
  • kCARD1R8C0...kCARD1R8C21
  • kCARD1R9C0...kCARD1R9C21
  • kCARD1R10C0...kCARD1R10C21
  • kCARD1R11C0...kCARD1R11C21
  • kCARD1R12C0...kCARD1R12C21
  • kCARD1R13C0...kCARD1R13C21
  • kCARD1R14C0...kCARD1R14C21
  • kCARD1R15C0...kCARD1R15C21

SWB-2817 Relay Replacement

The module uses reed relays.

Note The module uses a custom lead length to meet safety standards. Trim leads per rework instructions or use one of the custom relays from the relay kit.
Relay Relay Manufacturer Part Number
Matrix Coto 9117-0001
Safety (Reference Designators K18, K53, K168, K283, K381, K382, K383, and K384) Tyco Electronics 5-1462039-8
Relay Kit Part Number
National Instruments (10 matrix relays) 781451-10
National Instruments (10 safety relays) 781089-10

Complete the following sets of steps to locate and replace a failed relay.

Locate the Relay

  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. Refer to the following figure and table for relay locations.
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The relay names in the following table correspond to a single-card device.

Relay Name Reference Designator Relay Name Reference Designator Relay Name Reference Designator Relay Name Reference Designator
kcard1ab0 K15 kcard1r3c10 K97 kcard1r7c14 K182 kcard1r11c18 K275
kcard1ab1 K33 kcard1r3c11 K98 kcard1r7c15 K181 kcard1r11c19 K274
kcard1ab2 K50 kcard1r3c12 K99 kcard1r7c16 K180 kcard1r11c20 K273
kcard1ab3 K68 kcard1r3c13 K100 kcard1r7c17 K179 kcard1r11c21 K134
kcard1ab4 K85 kcard1r3c14 K84 kcard1r7c18 K178 kcard1r12c0 K301
kcard1ab5 K101 kcard1r3c15 K83 kcard1r7c19 K177 kcard1r12c1 K302
kcard1ab6 K117 kcard1r3c16 K82 kcard1r7c20 K176 kcard1r12c2 K303
kcard1ab7 K133 kcard1r3c17 K81 kcard1r7c21 K69 kcard1r12c3 K304
kcard1ab8 K149 kcard1r3c18 K80 kcard1r8c0 K202 kcard1r12c4 K305
kcard1ab9 K165 kcard1r3c19 K79 kcard1r8c1 K203 kcard1r12c5 K306
kcard1ab10 K183 kcard1r3c20 K78 kcard1r8c2 K204 kcard1r12c6 K307
kcard1ab11 K200 kcard1r3c21 K35 kcard1r8c3 K205 kcard1r12c7 K308
kcard1ab12 K216 kcard1r4c0 K103 kcard1r8c4 K206 kcard1r12c8 K309
kcard1ab13 K232 kcard1r4c1 K104 kcard1r8c5 K207 kcard1r12c9 K310
kcard1ab14 K248 kcard1r4c2 K105 kcard1r8c6 K208 kcard1r12c10 K311
kcard1ab15 K264 kcard1r4c3 K90 kcard1r8c7 K209 kcard1r12c11 K312
kcard1r0c0 K1 kcard1r4c4 K91 kcard1r8c8 K210 kcard1r12c12 K313
kcard1r0c1 K2 kcard1r4c5 K108 kcard1r8c9 K211 kcard1r12c13 K314
kcard1r0c2 K3 kcard1r4c6 K109 kcard1r8c10 K212 kcard1r12c14 K317
kcard1r0c3 K4 kcard1r4c7 K110 kcard1r8c11 K213 kcard1r12c15 K318
kcard1r0c4 K5 kcard1r4c8 K111 kcard1r8c12 K214 kcard1r12c16 K319
kcard1r0c5 K6 kcard1r4c9 K112 kcard1r8c13 K215 kcard1r12c17 K320
kcard1r0c6 K7 kcard1r4c10 K113 kcard1r8c14 K218 kcard1r12c18 K321
kcard1r0c7 K8 kcard1r4c11 K114 kcard1r8c15 K219 kcard1r12c19 K322
kcard1r0c8 K9 kcard1r4c12 K115 kcard1r8c16 K220 kcard1r12c20 K323
kcard1r0c9 K10 kcard1r4c13 K116 kcard1r8c17 K221 kcard1r12c21 K150
kcard1r0c10 K11 kcard1r4c14 K119 kcard1r8c18 K222 kcard1r13c0 K333
kcard1r0c11 K12 kcard1r4c15 K120 kcard1r8c19 K223 kcard1r13c1 K334
kcard1r0c12 K13 kcard1r4c16 K121 kcard1r8c20 K224 kcard1r13c2 K335
kcard1r0c13 K14 kcard1r4c17 K122 kcard1r8c21 K70 kcard1r13c3 K336
kcard1r0c14 K19 kcard1r4c18 K123 kcard1r9c0 K234 kcard1r13c4 K337
kcard1r0c15 K20 kcard1r4c19 K124 kcard1r9c1 K235 kcard1r13c5 K338
kcard1r0c16 K21 kcard1r4c20 K125 kcard1r9c2 K236 kcard1r13c6 K339
kcard1r0c17 K22 kcard1r4c21 K51 kcard1r9c3 K237 kcard1r13c7 K340
kcard1r0c18 K23 kcard1r5c0 K135 kcard1r9c4 K238 kcard1r13c8 K341
kcard1r0c19 K24 kcard1r5c1 K136 kcard1r9c5 K239 kcard1r13c9 K342
kcard1r0c20 K25 kcard1r5c2 K137 kcard1r9c6 K240 kcard1r13c10 K343
kcard1r0c21 K16 kcard1r5c3 K138 kcard1r9c7 K241 kcard1r13c11 K344
kcard1r1c0 K36 kcard1r5c4 K139 kcard1r9c8 K242 kcard1r13c12 K345
kcard1r1c1 K37 kcard1r5c5 K140 kcard1r9c9 K243 kcard1r13c13 K346
kcard1r1c2 K38 kcard1r5c6 K141 kcard1r9c10 K244 kcard1r13c14 K330
kcard1r1c3 K39 kcard1r5c7 K142 kcard1r9c11 K245 kcard1r13c15 K329
kcard1r1c4 K40 kcard1r5c8 K143 kcard1r9c12 K246 kcard1r13c16 K328
kcard1r1c5 K41 kcard1r5c9 K144 kcard1r9c13 K247 kcard1r13c17 K327
kcard1r1c6 K42 kcard1r5c10 K145 kcard1r9c14 K231 kcard1r13c18 K326
kcard1r1c7 K43 kcard1r5c11 K146 kcard1r9c15 K230 kcard1r13c19 K325
kcard1r1c8 K44 kcard1r5c12 K147 kcard1r9c16 K229 kcard1r13c20 K324
kcard1r1c9 K45 kcard1r5c13 K148 kcard1r9c17 K228 kcard1r13c21 K166
kcard1r1c10 K46 kcard1r5c14 K132 kcard1r9c18 K227 kcard1r14c0 K349
kcard1r1c11 K47 kcard1r5c15 K131 kcard1r9c19 K226 kcard1r14c1 K350
kcard1r1c12 K48 kcard1r5c16 K130 kcard1r9c20 K225 kcard1r14c2 K351
kcard1r1c13 K49 kcard1r5c17 K129 kcard1r9c21 K86 kcard1r14c3 K352
kcard1r1c14 K32 kcard1r5c18 K128 kcard1r10c0 K250 kcard1r14c4 K353
kcard1r1c15 K31 kcard1r5c19 K127 kcard1r10c1 K251 kcard1r14c5 K354
kcard1r1c16 K30 kcard1r5c20 K126 kcard1r10c2 K252 kcard1r14c6 K355
kcard1r1c17 K29 kcard1r5c21 K52 kcard1r10c3 K253 kcard1r14c7 K356
kcard1r1c18 K28 kcard1r6c0 K151 kcard1r10c4 K254 kcard1r14c8 K357
kcard1r1c19 K27 kcard1r6c1 K152 kcard1r10c5 K255 kcard1r14c9 K358
kcard1r1c20 K26 kcard1r6c2 K153 kcard1r10c6 K256 kcard1r14c10 K359
kcard1r1c21 K17 kcard1r6c3 K154 kcard1r10c7 K257 kcard1r14c11 K360
kcard1r2c0 K54 kcard1r6c4 K155 kcard1r10c8 K258 kcard1r14c12 K361
kcard1r2c1 K55 kcard1r6c5 K156 kcard1r10c9 K259 kcard1r14c13 K362
kcard1r2c2 K56 kcard1r6c6 K157 kcard1r10c10 K260 kcard1r14c14 K280
kcard1r2c3 K39 kcard1r6c7 K158 kcard1r10c11 K261 kcard1r14c15 K298
kcard1r2c4 K58 kcard1r6c8 K159 kcard1r10c12 K262 kcard1r14c16 K315
kcard1r2c5 K59 kcard1r6c9 K160 kcard1r10c13 K263 kcard1r14c17 K331
kcard1r2c6 K60 kcard1r6c10 K161 kcard1r10c14 K266 kcard1r14c18 K347
kcard1r2c7 K61 kcard1r6c11 K162 kcard1r10c15 K267 kcard1r14c19 K363
kcard1r2c8 K62 kcard1r6c12 K163 kcard1r10c16 K268 kcard1r14c20 K379
kcard1r2c9 K63 kcard1r6c13 K164 kcard1r10c17 K269 kcard1r14c21 K167
kcard1r2c10 K64 kcard1r6c14 K169 kcard1r10c18 K270 kcard1r15c0 K365
kcard1r2c11 K65 kcard1r6c15 K170 kcard1r10c19 K271 kcard1r15c1 K366
kcard1r2c12 K66 kcard1r6c16 K171 kcard1r10c20 K272 kcard1r15c2 K367
kcard1r2c13 K67 kcard1r6c17 K172 kcard1r10c21 K102 kcard1r15c3 K368
kcard1r2c14 K71 kcard1r6c18 K173 kcard1r11c0 K284 kcard1r15c4 K369
kcard1r2c15 K31 kcard1r6c19 K174 kcard1r11c1 K285 kcard1r15c5 K370
kcard1r2c16 K73 kcard1r6c20 K175 kcard1r11c2 K286 kcard1r15c6 K371
kcard1r2c17 K74 kcard1r6c21 K184 kcard1r11c3 K287 kcard1r15c7 K372
kcard1r2c18 K76 kcard1r7c0 K186 kcard1r11c4 K288 kcard1r15c8 K373
kcard1r2c19 K76 kcard1r7c1 K187 kcard1r11c5 K289 kcard1r15c9 K374
kcard1r2c20 K77 kcard1r7c2 K188 kcard1r11c6 K290 kcard1r15c10 K375
kcard1r2c21 K34 kcard1r7c3 K189 kcard1r11c7 K291 kcard1r15c11 K376
kcard1r3c0 K87 kcard1r7c4 K190 kcard1r11c8 K292 kcard1r15c12 K377
kcard1r3c1 K88 kcard1r7c5 K191 kcard1r11c9 K293 kcard1r15c13 K378
kcard1r3c2 K89 kcard1r7c6 K192 kcard1r11c10 K294 kcard1r15c14 K281
kcard1r3c3 K90 kcard1r7c7 K193 kcard1r11c11 K295 kcard1r15c15 K299
kcard1r3c4 K91 kcard1r7c8 K194 kcard1r11c12 K296 kcard1r15c16 K316
kcard1r3c5 K92 kcard1r7c9 K195 kcard1r11c13 K297 kcard1r15c17 K332
kcard1r3c6 K93 kcard1r7c10 K196 kcard1r11c14 K279 kcard1r15c18 K348
kcard1r3c7 K94 kcard1r7c11 K197 kcard1r11c15 K278 kcard1r15c19 K364
kcard1r3c8 K95 kcard1r7c12 K198 kcard1r11c16 K277 kcard1r15c20 K380
kcard1r3c9 K96 kcard1r7c13 K199 kcard1r11c17 K276 kcard1r15c21 K185

Replace the Relay

The module uses lead-free assemblies.

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.

Make sure that you have the following items:

  • Temperature-regulated soldering iron set to 371 °C (700 °F) for lead-free 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

Replace the relay as you would any other through-hole part. Trim the replaced relay leads to no more than 0.5 mm (0.02 inch) from the PCB.

Note You can use the Switch Soft Front Panel to reset the relay count after you have replaced a failed relay.