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Catalog # 304002 - Model 4002 A/B Switch, Board Only, Slave

    A/B Switch, Board Only, SlaveA/B Switch, Board Only, Slave
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    • A/B Switch, Board Only, Slave
    • A/B Switch, Board Only, Slave
Base Price:
Catalog No: 304002
Model No: 4002
Product Type:Switches: Copper
Interface:50 .1 x .1
Cable Type/Port Connector:50-Pin
Channels per Switch Chassis:1
Electronic Switches/Power Required:PathWay® Copper
Remote Control:Contact Closure
Pins Switched:42 pins (pin 1-41 and 50)
Remote Port:50-Pin .1 x.1
Local Control:Pushbutton Footprint


Shipping Terms

Shipments are made via UPS Ground, unless otherwise specified. Freight charges are prepaid and added to your invoice. We can estimate the freight costs for you.

We can ship freight collect on your account, just provide your UPS Account Number.

We can also ship via the carrier of your choice. Provide the details and your account number.

Products shall be shipped F.O.B. Electro Standards' facility. Title to and risk of loss or damage to the products shall pass to you upon Electro Standards delivery of the products to a carrier for shipment. Title to software will remain with the applicable licensor. Electro Standards' prices do not include shipping and handling charges. Electro Standards reserves the right to use its own discretion in the manner and routing of shipments. Electro Standards shall be permitted to deliver products in separate lots.

Shipping Return Policy

  • To return an item, contact Electro Standards at 401-943-1164 to obtain a Return Material Authorization (RMA) number. RMA numbers are valid for 30 days after the date of the shipment and cannot be extended or re-issued. We are unable to accept returns without an RMA number.
  • All returns except those of defective product are subject to a 15% restocking fee, and additional charges for handling or freight are refunded only in cases of defective products.
  • Return freight must be shipped prepaid. We recommend that you insure the package as you are responsible for risk of loss on all returned packages. We recommend that all cartons are properly packed as Electro Standards is not responsible for product damaged en route. We do not issue call tags for product returns.
  • Returned product must be clean, undamaged, and complete with all manuals, accessories, documents and packaging. The items must be in a resalable condition.
  • The product must have with it a copy of the original invoice or packing slip and the appropriate RMA paperwork.
  • If your item is not working properly, please contact Electro Standards at 401-943-1164 for help in trouble-shooting your application.
  • If the product is defective, Electro Standards will repair or replace that item (at our discretion) upon receipt and evaluation of the original product.
  • Electro Standards reserves the right to authorize product returns after 30 days from the invoice date in some cases. If the product is accepted after 30 days, credit will be issued toward future pruchases only and some additional restocking charges may be applied.
  • All credits from RMAs must be used within one calendar year of issue.

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  1. Overview

Path Way® Board-Only Network Switch
Model 4002 Single Channel A/B Switch, Slave Board Only

Model 4001 Single Channel A/B Switch, Master Board Only and Model 4002 Slave Board Only


  • DISPLAY: Supplies signals to drive customer's external LED's to display switch position and power status.
  • DIMENSIONS: (Board), 7.5" W x 0.8" H x 6.0" D. (19.1 x 2.0 x 15.2 cm)
  • WEIGHT: Approximately 0.6 lb (0.3 kg)
    • Voltage: 12 VDC
    • Current: 150mA (peak), 20mA (nominal)
    • Power to be supplied by user.
    • (3) 50-Pin .1" x .1" signal ports (A, B, and COMMON)
  • 0.6A, 125VAC
  • 1A, 30 VDC
    • (2) LED footprints (5VDC through 1.2 ohm resisitor)
    • (1) Pushbutton footprint (momentary contact closure)

MODEL 4001/4002 APPLICATION: Operating as a mutally exclusive pair.
The drawing illustrates the Model 4001 Master board connected to the Model 4002 Slave board  as a mutally exclusive pair via the .1" x .1" interface. Each board (Master and Slave) has a COMMON Equipment connected to the 50-Pin COMMON port with access to Equipment A and Equipment B, each connected to the 50-Pin A and 50-Pin B ports. Each board can be used as a standalone application as well.

PathWay® Model 4001 / 4002 Application, operating as a mutually exclusive pair!


  • The switch ports are transparent to all data.
  • Pins 1-41, and 50 of the 50-pin .1" x .1" interface are switched via break-before-make electromechanical relays.
  • The unit maintains last set position on power loss and continues to pass data.
  • Upon power up, if the B position is sensed to be unavailable, the unit will automatically switch to the A position.
  • Can be used as a pair, allowing only one unit to be in the B position at a time.
  • Can be used in a standalone application with a jumper installed.
  • Front panel pushbutton control (pushbutton) not provided. The pushbutton for each board (Master and Slave) may be located locally or remotely to control position of the switches.
  • Pin 50 of the 50-Pin .1" x .1" interface can be used for Remote Contact Closure position monitoring. 
  • Customer supplied LED's display present position and power status. (Signals for the LED's are provided)  

The PathWay® Model 4001 Single Channel A/B Switch, Master, can operate singly (standalone) or as a pair (master & slave) with the PathWay® Model 4002 Single Channel A/B switch, Slave unit.  Each unit allows the user the capability of sharing 42 pins of the device connected to the Common port among two other devices connected to the A and B ports.

The units accept contact open/close signals from any external pushbutton switch to control the sharing function (switching the 42 pins from Common to either A or B).  The units supply output signals indicating whether the switch is in the A or B position.  Board signals also drive the customer supplied LED display.

When the Models 4001 and 4002 are used as a pair, only one unit is allowed to be in the B position at any given time.  When used as a standalone, a jumper must be installed in order to allow the unit to switch to the B position.

All data switches, data communication products, and data acquisition products are subject to a one year warranty against manufacturing defects.  The limit of ESL liability is limited to the cost of the ESL product provided.
*Prices online are subject to change and verification.
All ESL products are available for export.

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