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Catalog # 307748 - Model 7748 DB25 RS530 A/B Switch with Cutoff, Ethernet Remote Control

    DB25 RS530 A/B Switch with CutoffDB25 RS530 A/B Switch with CutoffDB25 RS530 A/B Switch with CutoffDB25 RS530 A/B Switch with Cutoff
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    • DB25 RS530 A/B Switch with Cutoff
    • DB25 RS530 A/B Switch with Cutoff
    • DB25 RS530 A/B Switch with Cutoff
    • DB25 RS530 A/B Switch with Cutoff
Base Price:
Catalog No: 307748
Model No: 7748
Product Type:Switches: Copper
Positions:3, Offline
Cable Type/Port Connector:DB25 Switch Ports
Channels per Switch Chassis:1
Electronic Switches/Power Required:PathWay® Copper
Remote Control:Ethernet
Security:Offline Position
Pins Switched:25
Remote Port:RJ45
Local Control:Pushbutton

  • On power loss, unit reverts to a Cutoff Position that isolates all communication ports.
  • When power is restored, the unit automatically switches to the Default Position set by user via Telnet commands or GUI.

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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Path Way® Remotely Controllable Network Switch, DB25, RS530
Model 7748 Single Channel RS530 DB25 A/B Switch with Cutoff Position, Telnet and GUI

  • Absolutely NO data passes through the switch when in the Cutoff Position.

  • The ultimate FIREWALL!


    • (2) DB25 male connectors labeled A and B.
    • (1) DB25 female connector labeled COM.
  • FRONT PANEL CONTROL: (1) Manual pushbutton allows local switching.
  • DISPLAY: (2) Front panel LED's display switch position and power status.
  • REMOTE CONTROL: (1) RJ45 female connector on rear panel accepts 10/100Base-T LAN Access Ethernet interface port for Remote Control Operation.
  • POWER: UL approved 100VAC-240VAC, 50Hz-60Hz wall mount power module supplies 12 VDC, 500 mA to the unit. Has 2-prong, US, non-polarized plug.
  • DIMENSIONS: Rackmount: 19.0" W x 1.75" H x 8.24" D. [48.3 x 4.5 x 21.0 cm]
  • WEIGHT: Approximately 4.5 lbs [2.1 kg]

PathWay® Model 7748 RS530 DB25 A/B w/CUTOFF, TELNET & GUI APPLICATION:

The drawing illustrates a Shared Device connected to the DB25 female connector port labeled COMMON and Device A and Device B are connected to two DB25 male connector ports labeled A and B. There are two position choices shown, Position A selects Device A and Position B selects Device B. The RJ45 REMOTE port is LAN Ethernet 10/100Base-T for remote control of the unit via Telnet commands of Graphical User Interface. The Cutoff Position is managed by choosing the Default Position A or B via Telnet Commands or the GUI.

PathWay Model 7748 RS530 DB25 A/B Switch with Cutoff Position, telnet and GUI Application


  • The switch ports are transparent to all data.
  • All (25) pins of the DB25 interface are switched via break-before-make electromechanical relays.
  • On power loss, unit reverts to a Cutoff Position that isolates all communication ports.
  • When power is restored, the unit automatically switches to the Default Position set by user via Telnet commands or GUI.
  • Front panel pushbutton control.
  • Control of the switch position from a 10/100Base-T LAN Ethernet Environment.
  • Remote Control Telnet command interface or Graphical User Interface that allow the user to control switch position, lockout front panel operations and obtain switch status.
  • Front panel LED's display present position and power status.

The Pathway Model 7748 Single Channel DB25 A/B Switch with Cutoff Position, Telnet and GUI allows the user the capability of sharing a single port interface device connected to the COMMON port among two other devices connected to the A and B ports with remote access functionality.

Remote Control access can be accomplished using and Ethernet 10/100Base-T connection and either Telnet commands or Graphical User Interface. The Model 7748 is enclosed in a 1U, full rack size, all metal, black chassis designed to provide EMI/RFI shielding and fit in a standard 19" rack.


(Cat No 517277) CE, RoHS, and UL listed table mount power module, 100 VAC-240 VAC, 50Hz-60Hz for use in place of standard power module that is included with the unit. Has IEC 60320 C14 inlet.  Ideal for international applications.



To connect to the switch from a workstation or computer having access to the LAN that the Model 7748's LAN port is connected to, simply launch a standard web browser and type in the appropriate IP address.  The Java Applet will be automatically uploaded from the switch upon connection.  The environment requirement for the GUI is Java 1.7 and above.


  • Access User Interface via standard web browser.
  • Easy to use, simple point and click operation.
  • Remotely access to control or monitor the Model 7748.
  • Graphical User Interface that allows the user to control Default Position, Switch Position, lock and unlock front panel operations and obtain switch status.
  • Users can change switch's IP address and configuration.
  • LAN access gives users across the LAN or over the Internet access to control if user network is configured accordingly.

PathWay® Model 7748 A/B Switch w/cutoff Position

 Figure 1: GUI in a Standard Web Browser


To change the switch position, click on the radio button for A or B, as desired.

 Locking and unlocking the front panel pushbutton can be done by clicking on the "Locked" or "Unlocked" radio buttons.

See Figure 2. 

PathWay Model 7748 RS530 DB25 A/B Switch with Cutoff Position, telnet and GUI Application

 Figure 2: Change the position and lockout from the GUI, as well as Select Default Position A or Default Position B.

Ask about our popular Model 900 EIA/TIA RS-530 Interface Analyzer

  • Red and Green light emitting diodes indicate status of key signals at the EIA/TIA data interface.
  • Easy to use, for fault isolation.
  • Electro Standards can supply all your Network Cable requirements.

Model 900 EIA/TIA RS520 Interface Analyzer

Electro Standards can supply all of your Network Cable requirements. Click here to reach our Copper Cable Assemblies webpage

For custom network switches call our friendly customer support staff at 401-943-1164, email eslab@electrostandards.com, or complete our online Custom Product Request form.

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.

Electro Standards welcomes International inquiries: commutateur de réseau, conmutador de red, switch di rete, przelacznik sieciowy, switch de rede, nätverksswitch,

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