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

Catalog # 304392 - Model 8110 DB9 2-Position Switch

    DB9 2-Position SwitchDB9 2-Position Switch
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    • DB9 2-Position Switch
    • DB9 2-Position Switch
Base Price:
Catalog No: 304392
Model No: 8110 DB9 2-Position Switch
Product Type:Switches: Copper
Cable Type/Port Connector:DB9 Switch Ports
Channels per Switch Chassis:1
Manual Control/No Power Required:LineSelect® Manual Operation
Pins Switched:9
Local Control:Rotary Knob
Feature:Sealed Switch/Self-wiping Contacts


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 8110 Enhanced Temperature Range A/B Switch
w/Built-in Conversion on Port A to RS422/485

  • High Quality Manual Data Network Switches Increase the
    Reliability of Your Network!

Enhanced Temperature Range A/B Switch, Model 8110  w/Built in Conversion on Port A to RS422/485


  • Manual AB Network Switch connects the common "COM" port to either
    Port B as a pass through connection, or to Port A which accepts RS232
    signals from the COM port and converts them to RS422/485.
  • Pins 1-9 from the DB9/Female port on the rear panel COM connector are
    passed through to Port B when the rotary switch is in the B position.
  • Transmit and Receive RS-232 data signals from the COM port are
    converted internally in the unit and switched to Port A when the rotary
    is in the A position.
  • Power for the conversion circuitry is drawn from the connected devices.
  • High quality sealed switch mechanism with self-wiping contacts.
  • Rotary switch has enhanced operating temperature
    range -17° C to 75° C (1.4° F to 167°F).


  • CONTROLS: (1) Manual Rotary switch/knob on front panel.
  • REAR PANEL CONNECTORS: (1) DB25/female connector, A (RS485);
    (1) DB9/female connector, COM.
  • FRONT PANEL CONNECTORS: (1) DB9/female connector, B.
  • SIGNALS SUPPORTED: See block reference diagram.
  • SIZE: 5.25" W x 2.35" H x 7.25" D
  • WEIGHT: 1.0 lb.
  • POWER SUPPLY: Line powered conversion electronics; none required.


  • This high-quality network switch is available to city, state, and federal government purchasers at a discounted price and favorable payment and shipping terms via GSA Schedule GS-35F-0286V. Click here or on GSA icon for details.  

Custom Network Switches are available. Contact us by phone, email, or complete the Online Custom Products Form. /Products-Custom/Copper-Switch/

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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