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Catalog # 307438 - Model 7438 4-Channel DB25/DB15/DB9 A/B Switch

    4-Channel DB25/DB15/DB9 A/B Switch
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Catalog No: 307438
Model No: 7438
Channels per Switch Chassis:4
Electronic Switches/Power Required:PathWay® Copper
Remote Control:Ethernet
Compliance/Standards:Cat5e, Cat6, CE Compliant, RoHS
Fiber Size:50/125, 62.5/125
Remote Port:Terminal/Barrier Strip


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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Multi Interface Copper Network Switches, DB25, DB15, DB9
Model 7438 4-Channel DB25/DB15/DB9 A/B Switch with Telnet and GUI

Model 7438 4-Channel DB25/DB15/DB9 A/B Switch with Telnet and GUI


  • PORT CONNECTORS:  Channels 1 through 4 each consist of (1) DB25 (F), (1) DB15 (F), (1) DB9 (F).  These A, B, and COMMON switch ports are custom labeled as listed in Table 1.
  • FRONT PANEL CONTROL: (4) Manual pushbuttons allow local switching.
  • REMOTE CONTROL PORT: (1) RJ45 female connector on rear panel accepts Ethernet 10/100Base-T connection and either TELNET commands or Graphical User Interface for remote operation. 
  • DISPLAY: (8) Front panel Red LED's display switch position and power status.
  • POWER: UL approved 100VAC/240VAC, 50Hz/60Hz wall mount power module supplies 12 VDC, 500mA to the unit.  Has 2-prong, US, non-polarized plug.
  • DIMENSIONS: Rackmount 19.0"W x 5.25"H x 12.14"D (48.3 x 13.4 x 30.9 cm)
  • WEIGHT: Approximately 11.0 lbs. (5.0 kg)
Table 1: Switch and Connector Labels
CH A-Position B-Position COMMON
1 ANDVT - 1 KY99 - 1 ADI - J3
2 ANDVT - 2 KY99 - 2 ADI - J3
3 ANDVT - 3 KY99 - 3 ADI - J3
4 ANDVT - 4 KY99 - 4 ADI - J3





The application drawing illlustrates 4 channels of independent switching. Each Channel consists of a DB25 A/B Switch, a DB15 A/B Switch and a DB9 A/B Switch. The three A/B Switches are independent channels (DB25/DB15/DB9) switch simultaneously from Position A to Position B or from Position B to Position A. Each channel can be controlled from the front panel pushbuttons, independently for simultaneousy control of the port sets. The Remote port is password protected. The RJ45 Remote port is IP Addressable, 10/100Base-T LAN connection which a user can control via Telnet commands or a User-friendly Graphical User Interface.

Model 7438 4-Channel DB25/DB15/DB9 A/B Switch with Telnet and GUI


  • Each channel consists of three A/B/COMMON port sets:
    • (1) DB25
    • (1) DB15
    • (1) DB9
  • The switch ports are transparent to all data.
  • All pins of the DB25, DB15, and DB9 interfaces are switched via break-before-make electromechanical relays.
  • Independent control of each channel with front panel pushbutton control.
  • Control of the switch position from a 10/100Base-T LAN Ethernet environment.
  • Remote Telnet Command interface or Graphical User Interface that allows the user to control switch position, lockout front panel operations, and obtain switch status.
  • Remote control of the switch is password protected, where the password protection can be disabled.
  • Front panel LED's display present position and power status.

The PathWay® Model 7438 4-Channel DB25/DB15/DB9 Switch with 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, for each channel.   Remote Control access can be accomplished using an Ethernet 10/100BASE-T connection and either Telnet Commands or Graphical User Interface.

The Model 7438 is enclosed in a 3U, full rack size, all metal black chassis designed to provide EMI/RFI shielding adn fit in a standard 19" rack.

 Option: Wide Range Power Supply: (Cat No. 517277) CE, RoHS, and UL listed table mount power module, 100VAC/240VAC, 50/60Hz in place of the standard power module.  Ideal for international applications.

To connect to the switch from a workstation or computer having access to the LAN that the PathWay® Model 7438 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.

Figure 1 shows the PathWay® Model 7438 Remote Management Console  Main Panel; it will view in a standard web browser..

PathWay® Model 7438 Main Panel of the GUI; it will view in a standard web browser.

Figure 1: Main panel GUI will be viewed in Standard Web Browser

10/100Base-T LAN SETUP
Network Setup

The switch is configured from the factory to use DHCP to automatically get its IP address from a DHCP server on the local area network when connected to the network and powered up. Therefore, a DHCP server is needed on the local area network for the initial configuration.  After that, the switch can be configured to use a static IP address. To find the IP address of a switch that it has gotten from the DHCP server, or to reconfigure the IP Address of the switch, use Lantronix® DeviceInstaller application.

Getting DeviceInstaller

DeviceInstaller requires Microsoft's .NET Framework version 4.0 or higher.  If the .NET Framework is not already installed, it must first be installed. The .NET Framework can be downloaded from Microsoft's website, either as a web install, or as a standalone installation.  The latest version of DeviceInstaller can be downloaded from the Lantronix's website.


  • Access User Interface via standard web browser.
  • Easy to use, simple point and click operation.
  • Remotely access to control or monitor the PathWay® Model 7438.
  • Remote Control is password protected. 
  • Users can change the login password and/or switch's IP address.
  • LAN access gives users across the LAN or over the Internet access to control if user network is configured accordingly

LOGGING into the Remote Control GUI
Once logged in, the user can perform one of several actions:

  • Change the switch position for each channel.
  • Each channel switched simultaneously, switches the three port sets (DB25/DB15/DB9) from Position A to Position B and from Position B to Position A.
  • Lockout control of the switch's front panel
  • Obtain switch status
  • Change the login password
  • Re-configure the switch's IP address

PathWay® Model 7438 Login Screen for the Graphical User Interface

Figure 2: Model 7438 GUI Login screen

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.

PathWay® Model 7438 change position and/or  lockout front panel operation. 

Figure 3: Change the switch position and/or lockout front panel operation from the GUI.

 Custom Network Switches are available. Contact us by phone, email, or complete the Online Custom Products Form:

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

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 Manual Data Network Switches are available for export.

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