401-943-1164 / US & Canada Toll Free: 877-943-1164

Catalog # 305229 - Model 7229 2-Channel DB25/X.21 BIS A/B Switch, Includes Wide Range Power Supply for North American and European Applications

    2-Channel DB25/X.21 BIS A/B Switch
Click image to enlarge
Base Price:
Catalog No: 305229
Model No: 7229
Product Type:Switches: Copper
Cable Type/Port Connector:DB25 Switch Ports
Channels per Switch Chassis:2
Electronic Switches/Power Required:PathWay® Copper
Channel Control:Independent Channel Control
Remote Control:RS232 Serial
Pins Switched:25
Remote Port:DB9
Local Control:Pushbutton


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.

Ask a Question

Protected Document Request


Path Way® Remotely Controllable Network Switch
Model 7229 Dual Channel DB25/X.21 BIS Interface A/B Switch with Serial Remote Control

  • Applicable to ANY DB25 interface including DB25/X.21 BIS
  • Includes a Wide Range Power Supply to Support both North American and European Power Sources.

Model 7229 Dual Channel DB25/X.21 BIS Interface A/B Switch w/Serial Remote Control


  • PORT CONNECTORS: Each channel has (3) DB25 (F) connectors labeled A, B, and COMMON.
  • FRONT PANEL CONTROL: (2) Manual pushbuttons allows for local switching.
  • DISPLAY: (4) Front panel LED's display switch position and power status.
  • REMOTE CONTROL: (1) DB9(F) connector on rear panel accepts RS232
    Serial Data for remote control operation.
  • POWER: UL approved 100VAC / 240 VAC, 50Hz/60Hz table mount power module
    supplies 12 VDC, 500mA to the unit.  This is a wide range power module to
    cover North American and European Applications.
  • DIMENSIONS: Desktop, 16.0" W x 1.75" H  x 8.0" D. (40.6 x 4.4 x 20.3 cm) 
  • WEIGHT: Approximately 2.5 lbs. (1.1 Kg)

APPLICATION: The drawing illustrates two channels of DB25/X.21 interface A/B Switching.  For each channel, a COMMON device is connected to the DB25 COMMON port and shares between two devices connected to the DB25 A and B ports.  A DB9 Remote Control port accepts ASCII RS232 Serial Data commands allowing control of the switch from a remote location. The illustration also demonstrates a wide range power supply for North American and European applications.

Network Application Diagram for Model 7229 Dual Channel DB25/X.21 BIS Interface A/B Switch with Serial Remote Control


  • Each channel allows quick connection to any one of two DB25/X.21 BIS Interface devices from one COMMON device.
  • Switches all 25 pins of the DB25 interface.
  • Eliminates the need to plug and unplug cables.
  • Transparent to data speed and format.
  • Local control via front-panel pushbutton.
  • Remote control port allows off-site monitoring and switch management.
  • The REMOTE port accepts RS232 Serial Data ASCII commands for switch position control and monitoring.
  • Front panel pushbutton control can be locked out remotely.
  • Remote commands to set pushbutton-position change delay value.
  • Front panel LED's display switch position and power status.
  • Retains last switch position in the event of a power loss and continues to pass data.
  • Attractive anodized black box packaging provides EMI/RFI shielding.
  • A wide range UL approved power module is supplied with the unit
    (100VAC/240VAC, 50Hz/60Hz) to cover North American and European applications.
  • Custom length DB25 cables available for your switch installation. 

Each channel of the PathWay® Model 7229 allows the user the capability of sharing a DB25/X.21 BIS Interface device connected to the Common port connector between two other X.21 BIS Interface devices connected to the A and B ports.

The switch may be controlled locally by manually operating the front-panel pushbutton or remotely from a DB9 female serial interface Remote port located on the rear of the unit.  Local switching is achieved by simply pressing the front-panel pushbuttons.  The switch will change to the newly selected position as indicated by the front panel LED's.  One channel can be made the "Master" channel and can be used to control the switching of both channels.

Electro Standards can supply all of your Network Cable requirements. Click here to reach our CABLES, COPPER NETWORK Webpage. 

For custom network switches call our friendly customer support staff at 401-943-1164, email eslab@electrostandards.com, or complete our online form: /Products-Custom/Copper-Switch/

All data switch boxes, 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.

Available Combo Deals