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

Catalog # 307387 - Model 7387 DB25 A/B Switch with Fallback

    DB25 A/B Switch with Fallback
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Base Price:
$775.00
Catalog No: 307387
Model No: 7387
Feature:Automatic Fallback
Switch Type (Fiber, Ethernet, etc.):Serial
Positions:2 (e.g. A/B and Common)
Channels per Switch/Chassis:1
Chassis/Rack Configuration:Rackmount
Connector/Port:DB25
Pins Switched:All pins of DB25
Remote Control Type:Position Status, Contact Closure
Remote Control Port:DB15
Local/Manual Control:Pushbutton

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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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Overview


Path Way® Remotely Controllable Network Switch
Model 7387 Single Channel RS232 DB25 A/B Switch with Fallback and Remote Port

 - Can also switch automatically.  You select the trigger signal: RD or DCD

Model 7387 Single Channel RS232 DB25 A/B Switch with Fallback and Remote Port

SPECIFICATIONS:

  • PORT CONNECTORS:  (3) DB25 female connectors labeled A, B, and Common.
  • FRONT PANEL CONTROL: (1) manual pushbutton allows local switching.
  • DISPLAY: (2) Front panel LED's display switch position, power status
    and mode of operation.
  • REMOTE CONTROL: (1) DB15 female connector on rear panel accepts
    Contact Closure for Remote Control Operation.
  • POWER:  UL approved 120VAC, 60 Hz wall mount power module supplies
    12 VDC, 500mA to the unit.
  • DIMENSIONS: Rackmount, 19.0" W x 1.75" H x 8.0" D.
  • WEIGHT: Approximately 4.5 lbs 

Model 7387 Rs232 DB25 A/B Switch with Fallback and Remote Port Application Note

FEATURES:

  • The unit may be switched manually, remotely, or automatically.
  • The unit may be programmed via DIP switch settings to use either the RD signals or the DCD signals as triggers for automatic switching.  See operation manual for details.
  • Front panel LED's display switch position, mode and power status.
  • All pins of the DB25 interface are switched.
  • The switch ports are transparent to all data.
  • All switched signals are passed via latching copper contact relays that maintain their position and continuity even in the event of a power loss.
  • When power is restored, unit loads previous position and mode of operation and checks DIP switch settings and remote port to determine the correct startup configuration.

The PathWay® Model 7387 Single Channel RS-232 DB25 A/B Switch with Fallback and Remote Port 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.  The remote port can be used to attain switch position status by using the provided set of contact closure pins.  The remote port can also be used to control the switch position using a separate set of contact closure pins.

When in automatic fallback mode the unit monitors either RD activity or DCD presence on ports A and B.  If activity or presence of the selected trigger signal (RD or DCD) is lost on the current port, the unit checks if there is activity or presence on the other port and, in the event that there is activity or presence, the unit switches to the other port.  If there is no activity or presence on either port, the unit will maintain its connection to its current port and continue to monitor both ports.  The user can override automatic fallback operation from the front panel or remote port and force the unit to operate as an A/B switch (RS232 Fallback Switch).

OPTION: WIDE RANGE POWER MODULE:
(Cat No 517277) CE and UL listed table mount power module, 100VAC/240VAC, 50Hz/60Hz in place of standard 115VAC or 120VAC power module.  Ideal for international applications.

TO READ THE ARTICLE: "ADVANCES IN NETWORK SWITCHES", click link to read as a pdf. You need Acrobat Reader to view this file.  

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/

This product is offered at a discount to city, state, and municipal government purchasers via GSA Schedule GS-35F-0286V.

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

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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Developer Tools

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45. 0.2968431 DBInterface.GetDataT show StoredProcedure [dbo].[Cart_LoadByUserID] @UserID=378b2140-e964-415c-ad30-9c9abb6ddbe2
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