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Catalog # 304830 - Model 8043 RJ11/12 2-Position

    RJ11/12 2-Position
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Catalog No: 304830
Model No: 8043
Cable Type/Port Connector:RJ11/12


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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Cat 3 RJ11/12 Telco Modular Switch, RJ11/12, Rotary Switch 
Model 8043 RJ11/12 A/B Manual Data Network Switch, CAT 3 Compliant

  • Allows sharing of ANY RJ11 interface devices.
  • Allows sharing of ANY RJ12 interface devices. 

Model 8043 RJ11/12 A/B Switch, Manual, Cat 3 Compliant Rotary Switch

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


  • PORT CONNECTORS: (3) RJ11/12, Cat 3 female connectors labeled
    A, B, and COMMON.
  • FRONT PANEL CONTROL: (1) Rotary Switch on front panel selects A or B.
  • POWER: No power required.  Manually Operated.
  • DIMENSIONS: 5.43" W x 7.74" D x 2.72" H.
    (13.8 x 7.0 x 19.7 cm).
  • WEIGHT: Approximately 1.1 lb. (0.5 Kg)

CAT3 RJ11/12 A/B APPLICATION: The drawing illustrates a computer connected to the COMMON port. The computer can share between two networks with a simple turn of the knob on the Model 8043. 

The Model 8043 CAT3 Manual Data Network Switch enables access to two Cat 3 networks. The Model 8043 RJ11/12 Cat 3 A/B switch allows the user to reroute data between two networks with a simple turn of a knob. Model 8043 supports all 6 pins of the RJ11/12 interface. No need to plug and unplug cables thereby eliminating connector wear.


  • Allows access to two RJ11/12 Cat3 networks from one computer or workstation.
  • Manual operation via front-panel rotary switch.
  • High quality sealed switch with self-wiping low impedance contacts.
  • Transparent to data speed and format.
  • All 6 pins of the RJ11/12 interface are switched via break-before-make rotary switch. 
  • Eliminates the need to plug and unplug cables.
  • No external power required.
  • Attractive anodized black box packaging provides EMI/RFI shielding. 
  • Improves computer network efficiency by allowing sharing of peripherals.
  • Custom length RJ11/12 patchcords available for your switch installation.
  • Lifetime warranty against manufacturing defects.

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 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 Manual Data Network Switches are available for export.

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