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

307392 Model 7392 DB25 RS232/RS530 A/B Switch

    DB25 RS232/RS530 A/B SwitchDB25 RS232/RS530 A/B SwitchDB25 RS232/RS530 A/B SwitchModel 4077 Contact Closure DeviceDB25 RS232/RS530 A/B Switch
Click image to enlarge
    • DB25 RS232/RS530 A/B Switch
    • DB25 RS232/RS530 A/B Switch
    • DB25 RS232/RS530 A/B Switch
    • Model 4077 Contact Closure Device
    • DB25 RS232/RS530 A/B Switch
Base Price:
Catalog No: 307392
Model No: 7392
Product Type:Switches: Copper
Cable Type/Port Connector:DB25 Switch Ports
Channels per Switch Chassis:1
Electronic Switches/Power Required:PathWay® Copper
Remote Control:Auto Fallback, Contact Closure
Auto Fallback:Data Activity & DCD Trigger Monitor, Monitors Port A & Port B
Pins Switched:25
Remote Port:DB15
Local Control:Pushbutton
Feature:RS-232 / RS-530
Protocol:Auto Switch on RD or DCD Activity

Single-Channel RS232/RS530 A/B Switch with Fallback: (Rackmount Unit)

  • DB15 Remote Control Port, Contact Closure Signaling
  • Control two Model 7392 via the Model 4077 Contact Control Device

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, DB25
Model 7392 Single Channel RS232 / RS530 A/B Switch with Fallback & Remote Control Port

  • Automatic Switch to Backup via Data Activity and Data Carrier Monitor!

  • Doubles the Reliability of Data Throughput in Critical Network Applications.


  • CONNECTORS: (3) DB25 (F) connectors on rear panel labeled A, B and COMMON.
  • FRONT PANEL CONTROL: Manual pushbutton allows alternate action A/B switching when in manual mode.
  • REMOTE CONTROL: (1) DB15 (F) connector on rear panel accepts contact closure signals from Model 4077, Cat No. 514077, or similar device.  See Related Products tab for more about Model 4077.
  • FRONT PANEL DISPLAY: (2) LEDs labeled A and B 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 1.75" H x 8.0" D (48.3 x 4.4 x 20.3 cm)
  • WEIGHT: Approx. 4.9 lbs. (2.2 kg)

PathWay® Model 7392 RS232/RS530 DB25 Fallback Application with Remote Control Port:

The drawing illustrates a DB25 A/B Switch with a DB15 Remote port. Remote control is via contact control signaling. In this diagram a Model 4077 or other contact closure device is connected to the REMOTE port.  In Automatic Mode, the unit monitors data activity on both ports A and B.

  • Model 4077 Remote Contact Closure Application:
  • Use Model 4077 as your Contact Closure Device along with cable, Cat No. 987267 to complete your system.
  • If using RS530, simply connect the DB15 cable end into Model 7266, 7276, 7392, or 7312. If using RS232, then insert the DB15 F/M adaptor (Cat. No. 989145)between the DB15 end of the cable and the unit.
  • The Model 4077 can be used with Models 7266, 7276, 7392, and 7312 to control switch position.

PathWay Model 7392 Single Channel RS232/RS530 A/B Switch w/Fallback & Remote


  • Switch to backup automatically via Data Activity or DCD trigger monitor. Switches back when signals restore.
  • The switch ports are transparent to all data.
  • All pins of the DB25 interface are switched.
  • All switched signals are passed via latching copper contact relays that maintain their position and continuity even in event of power loss or failure.
  • When power is restored, the unit loads previous position and mode of operation and checks DIP switch settings and remote port to determine the correct startup configuration.
  • Automatic switching based on either RD activity or DCD presence monitored on ports A and B.
  • Automatic switching compatible with RS232 or RS530 protocols.
  • Remote control of the switch position from a contact closure REMOTE port.
  • Reading of the current switch position from a contact closure REMOTE port.
  • Front panel LED's display position, mode, and power status.
  • The user can override automatic sensing mode operation from the front panel or remote port and force the unit to operate as an A/B switch.  

The PathWay® Model 7392 Single Channel RS232 / RS530 A/B Network Switch allows the user the capability of accessing two RS232/RS530 serial data interface devices connected to ports A and B from one RS232/RS530 serial data interface connected to its COMMON port. It has two modes of operation, Automatic Sensing Mode and Manual A/B Switch Mode.

In Automatic Sensing Mode, the Model 7392 allows a device connected to the Common port to connect through to the port with activity either on A or B.  It maintains the connection with the currently connected port, as long as there is activity on it.  The unit monitors data activity on both ports "A" and "B".  If activity on the currently connected port is lost, and if the other port has established valid activity, the unit automatically switches to that port with activity.  It will stay connected to the current port if neither of the ports has activity.  Then, if data activity is detected on a port, the unit will automatically switch to that port.  Unit can be set to monitor RD activity or DCD presence of ports A and B.

In Manual A/B Switch Mode, the Model 7392 may be controlled locally via its front-panel pushbutton, or remotely via its REMOTE-Control port using a set of contact closure pins.  The Remote-Control port can also be used to attain switch position status by using a separate set of contact closure pins on the REMOTE port.

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

Electro Standards can supply all 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 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 d'ordinateur,  equipo interruptor, interruttore del calcolatore, interruptor do computador, dator switch.

Available Combo Deals