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Catalog # 305210 - Model 9000 DB25 2-Position Switch

    DB25 2-Position SwitchDB25 2-Position SwitchDB25 2-Position SwitchDB25 2-Position Switch
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    • DB25 2-Position Switch
    • DB25 2-Position Switch
    • DB25 2-Position Switch
    • DB25 2-Position Switch
Base Price:
Catalog No: 305210
Model No: 9000
Product Type:Switches: Copper
Cable Type/Port Connector:DB25 Switch Ports
Channels per Switch Chassis:1
Manual Control/No Power Required:LineSelect® Manual Operation
Pins Switched:2-25, Pin 1 Bussed Thru
Local Control:Rotary Knob
Feature:Modular Design for System Expansion


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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Model 9000 DB25 A/B Switch Module (FFF), Rackmount Configuration

  • You can add switch modules to the rack as your system expands!


  • PORT CONNECTORS: (3) DB25 female connectors labeled A, B, and COMMON.
  • FRONT PANEL CONTROL: (1) Rotary switch on front panel selects A or B.
  • POWER:  Manually operated. No power required.
  • MODULE DIMENSIONS:  2.0"W x 5.25"H x 7.0"D. [5.1 x 13.3 x 17.8 cm]
  • WEIGHT:  Approximately 0.8 lb. (0.4 kg)

LineSelect® Model 9000 DB25 A/B (FFF) Switch Module Application:

The drawing illustrates a COMMON device connected to the DB25 COMMON port with access to other DB25 interface devices connected to the DB25 port "A" and DB25 port "B". This single channel DB25 A/B switch can become up to eight channels by installing eight individual switch modules into the Model 9025 rack mount chassis.

LineSelect® Model 9000 Db25 A/B Switch Module Application


  • Manually select switch position from front-panel.
  • Allows quick connection to any one of two devices from one COMMON device.
  • Switches pin 2-25. Pins 1 are bussed thru and tied to chassis lug.
  • High quality sealed switch with self-wiping low impedance contacts.
  • Eliminates the need to plug and unplug cables.
  • No external power required.
  • Transparent to data speed and format.
  • Attractive anodized aluminum packaging provides EMI/RFI shielding.
  • Improves computer network efficiency by allowing sharing of peripherals.
  • Custom length DB25 cables available for your switch installation.
  • Lifetime warranty against manufacturing defects.
  • Modular approach to switch requirements allows expansion to more channels on an as-needed basis.
  • Up to eight Model 9000 Switch Modules can be housed in the Model 9025 Rack Chassis.


The LineSelect® Model 9000 switch module allows the user to quickly and easily switch a device connected to the COMMON between devices connected to ports A and B.  The LineSelect® Model 9000 is an open frame module designed to be installed in the Model 9025 Rack.

The Model 9025 Rack accommodates up to 8 LineSelect® Model 9000's. The Model 9025 is a 3U full rack size chassis designed to fit in a standard 19" rack.

Model 9025 Rackmount Chassis for Switch Modules (Cat No 305972) Features:

  • Rack can accommodate up to eight DB25 A/B modules (2.0" W). (5.1 cm)
  • Rackmount chassis supports multiple switch module chassis of various widths.
  • Rack Size: 19" W x 5.25" H x 7" D. (48.3 x 13.3 x 17.8 cm)
  • Full opening for modules is 16.8" W. (42.7 cm)

Model 9025 Rack Chassis illustrated with a 2" filler panel Model 9008 and Module Guides. Other filler panel sizes are available!


  • Module rack filler panel, 2.0" W, Cat No 305983 - Model 9008.
  • Module rack filler panel, 0.8" W, Cat No 305981 - Model 9011.
  • Other filler sizes available.

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.


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