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305673 - Model 9093 2-Channel DB9, 3-Position Switch

    DB9 3-Position SwitchDB9 3-Position SwitchDB9 3-Position SwitchDB9 3-Position Switch
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    • DB9 3-Position Switch
    • DB9 3-Position Switch
    • DB9 3-Position Switch
    • DB9 3-Position Switch
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Catalog No: 305673
Model No: 9093
Product Type:Switches: Copper
Cable Type/Port Connector:DB9 Switch Ports
Channels per Switch Chassis:2
Manual Control/No Power Required:LineSelect® Manual Operation
Channel Control:Simultaneous Channel Control
Pins Switched:9
Local Control:Rotary Knob

2-Channel DB9 Switch, 3 Positions (ABC) each:

  • Channel 1: (3) DB9 (F) connectors labeled A, B, and C, and (1) DB9 (M) connector labeled COM.
  • Channel 2:  (3) DB9 (F) connectors labeled A, B, and C, and (1) DB9 (M) connector labeled COM.

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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DB9 Manual Network Switch, Rotary Switches
Model 9093 Dual-Channel DB9 A/B/C Switch, Manual Simultaneous Switching, Rackmount

  • Switch ANY device having a DB9 interface, since all nine pins are switched.

  • Applicable to video conferencing, broadcast networks, television station network switching.


    • Channel 1: (3) DB9 (F) connectors labeled A, B, and C, and (1) DB9 (M) connector labeled COM.
    • Channel 2: (3) DB9 (F) connectors labeled A, B, and C, and (1) DB9 (M) connector labeled COM.
  • FRONT PANEL CONTROL: (1) Rotary selector switch allows local switching.
  • POWER: No power required. Manually operated.
  • DIMENSIONS: Rackmount 19.0" W x 1.75" H x 8.75" D. [48.3 X 4.4 X 22.3 cm]
  • WEIGHT: Approximately 4.4 lbs. (2.0 kg).

LineSelect® Dual Channel DB9 A/B/C APPLICATION: Manually Operated, Rotary Switch

Simultaneous switching, 2 Channel Switching, DB9 female A, B, C connectors, DB9 male COMMON connectors.

The drawing illustrates a COMMON device connected to the DB9 Male COMMON port with access to three other devices, connected to the DB9 female A, B, and C ports, respectively for each of two channels which are simultaneously switched.


  • Simultaneously switches two DB9 channels via the front panel rotary switch.
  • All 9 pins of the DB9 interface are switched via break-before-make rotary switch.
  • A, B, and C connectors - DB9 (female)
  • COMMON port connectors - DB9 (male)
  • Eliminates the need to plug and unplug cables.
  • Transparent to data speed and format.
  • High quality sealed switch with self-wiping precious metal contacts.
  • No external power required.
  • Improves computer or broadcast network efficiency by allowing sharing of peripherals or switching to backup.
  • Attractive all metal black box packaging provides EMI/RFI shielding.
  • Lifetime warranty against manufacturing defects.
  • Custom length DB9 cables available for your switch installation.

With each of its two channels, the LineSelect® Model 9093 DB9 A/B/C Manual Switch allows the user to access three DB9 devices connected to its A, B, and C ports with one DB9 device connected to its Common port.  The 2-channels are switched simultaneously via a knob located on the front panel.  The LineSelect® Model 9093 is enclosed is a 1U, full rack size, all metal black chassis designed to provide EMI/RFI shielding and fit in standard 19" rack. See the application diagram above.

Don't forget to order your DB9 Cables! 

Custom Length DB9 cables available for your switch installation. 
State cable length (in Feet) when ordering.
Part Number  Description
990127  DB9 F/F, 9-Conductor Unshielded PVC Cable
990125  DB9 M/F, 9-Conductor Unshielded PVC Cable
990126  DB9 M/M, 9-Conductor Unshielded PVC Cable 

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