NI (National Instruments) SWB-2815 4x86, 0.3 A, Reed Matrix Module for SwitchBlock

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NI (National Instruments) · Computer-Based Device

SWB-2815

The NI SWB-2815 is a 4-row by 86-column reed relay matrix module for SwitchBlock. It provides 344 crosspoints for 1-wire signal routing.

ManufacturerNI (National Instruments)

ModelSWB-2815

Part Number781420-15 · 781421-15

Product Type4x86, 0.3 A, Reed Matrix Module for SwitchBlock

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Number of Columns86

Maximum Switching Current DC0.25 A

Maximum Switching Voltage DC100 V

Relay TypeReed

Number of Rows4

Mode (n-wire)1-wire

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Overview

Product overview

Key product information and technical features.

The SWB-2815 is a reed relay matrix module with 4 rows, 86 columns, and 344 crosspoints. It operates in 1-wire mode and uses a SwitchBlock bus connection.

The matrix supports dynamic signal routing within test systems, connecting inputs to outputs individually or in combination. Its routing role includes connecting instruments such as oscilloscopes, DMMs, arbitrary waveform generators, and power supplies to test points on a unit under test.

4 × 86 matrix configuration with 344 crosspoints for 1-wire routing.
Reed relays with a maximum DC switching current of 0.25 A and maximum DC switching voltage of 100 V.
Maximum AC carry current of 0.3 A and maximum AC switching voltage of 70 V.
Switch bandwidth of 6 MHz.
SwitchBlock interface for matrix-based instrument signal routing.

Verified specifications

Technical data

Verified product specifications.

Number of Columns	86
Maximum Switching Current DC	0.25 A
Maximum Switching Voltage DC	100 V
Relay Type	Reed
Number of Rows	4
Mode (n-wire)	1-wire
Supported Hardware Platform	Computer-Based Device
Bus Connection	Switchblock
Crosspoints	344
Maximum Carry Current AC	0.3 A
Maximum Switching Voltage AC	70 V
Switch Bandwidth	6 MHz
NI part numbers	781420-15, 781421-15

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NI

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Computer-Based Device

Supported Hardware Platform

SWB-2815

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Specifications (NI)Specifications · ni.com

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Product Page (NI)Product Page · ni.com

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FAQ

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Product-specific answers based on available technical information.

What are the SWB-2815 part numbers?

The listed NI part numbers are 781420-15 and 781421-15.

How many rows, columns, and crosspoints does the SWB-2815 have?

It has 4 rows, 86 columns, and 344 crosspoints, with 1-wire routing.

What relay type does the SWB-2815 use?

The module uses reed relays.

What are the DC switching limits?

The maximum DC switching current is 0.25 A, and the maximum DC switching voltage is 100 V. Consult the NI specifications for operating conditions and additional limits.

Does the 0.3 A product descriptor mean 0.3 A DC switching current?

No. The preserved specifications list 0.25 A as the maximum DC switching current and 0.3 A as the maximum AC carry current. Switching current and carry current are distinct ratings.