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

Catalog # 305581 - Model 8581 DB9 2 x 3 Matrix Switch

    DB9 2 x 3 Matrix Switch
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Base Price:
$332.00
Catalog No: 305581
Model No: 8581
Switch Type (Fiber, Ethernet, etc.):Serial
Channels per Switch/Chassis:1
Chassis/Rack Configuration:Desktop
Connector/Port:DB9
Pins Switched:9
Local/Manual Control:Rotary Knob
Serial:X

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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

Model 8581 2 x 3 Manual Matrix Switch, Desktop

  • Ideal for sharing peripherals or backup data line. Easily switches two inputs to three outputs!

 Model 8581 2x3 DB9 Matrix Switch

The Model 8581 allows two devices labeled A and B to share a backup channel or a backup peripheral.  Its standard configuration is desktop.  This is considered to be a matrix switch that can be custom-modified to connect the two input ports A and B to the output ports 1, 2, and 3 in a variety of configurations.

There are six possible combinations between inputs and outputs. 
They are: (A-1, B-2) (A-1, B-3) (A-2, B-1) (A-2 B-3) (A-3, B-1) (A-3, B-2).

The three selected as standard for this model are: (A-1, B-3) (A-1, B-2) (A-3, B-2). 
Any three combinations are optionally available.

Features:

  • Allows quick access to a shared backup channel or a shared peripheral for either one of two input devices labeled A and B.
  • Manual operation via front-panel rotary switch.
  • All 9 pins of the DB9 interface are switched.
  • High quality sealed switch with self-wiping low impedance contacts.
  • Tranparent to data speed and format. 
  • Eliminates the need to plug and unplug cables.
  • Rugged aluminum packaging provides EMI/RFI shielding.
  • No external power is required.
  • Monitor port supplies switch position info via contact closure.
  • Improves computer network efficiency by allowing sharing of backup data line or peripherals.
  • Custom switch position labeling and custom wiring optionally available.
  • Custom length DB9 cables available for your switch installation.
  • Lifetime guarantee against manufacturing defects.
  • Municipalities, schools, government: On GSA Schedule!

Specifications:

  • PORT CONNECTORS ON REAR PANEL: 
    (2) DB9 male input ports, labeled A, B.
    (3) DB9 female output ports, labeled 1,2,3.
  • MONITOR PORT ON REAR PANEL:
    (1) RJ45 female switch status port, labeled MONITOR
  • FRONT PANEL CONTROL: (1) Three position rotary selector, labeled A, NORMAL, and B.  Custom labeling available.
  • POWER: No power required.  Manually operated.
  • DIMENSIONS: 8.0" W x 2.5" H x 8.0" D.
    (20.3 x 6.35 x 20.3 cm)
  • WEIGHT: Approximately 1.5 lbs. (0.7 Kg)

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

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 Data 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. 

APPLICATION: The drawing illustrates two sources connected to DB9 ports A and B. The two sources have access to three devices connected to the DB9 ports, 1, 2 and 3.  The backup channel is line 3 which is a shared resource between Source A and Source B. You can see the six combinations (A-1, B-2), (A-1, B-3), (A-2, B-1), (A-2, B-3) (A-3, B-2), (A-3, B-2) in the diagram below.

Application Diagram of Model 8581 2x3 DB9 Matrix Switch Network

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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Developer Tools

Database Activity Shipping Rates Performance Tracking Cache Storage Session Storage
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# Seconds Since First Hit Trace Command Type Command Text Parameters Execution Time
1. 0 DBInterface.GetDataT show Text SELECT TOP(1) '0' AS ArticleID, 0 As ID, Product.MetaTitle As PageTitle, Product.MetaDescription As show - 0.0314622
2. 0 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =242e3032-7a51-4bfb-89c2-4295d9fde5f3
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3. 0.0221807 DBInterface.get_oSQL show StoredProcedure [dbo].[RecentlyViewedListLoadByEntityType] @UserID=242e3032-7a51-4bfb-89c2-4295d9fde5f3
@EntityType=product
@RowCount=5
@SiteID=1
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4. 0.0221807 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @PageUrl=/305581-8581-db9-2-x-3-matrix-switch-240.html
@Type=PRODUCT
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5. 0.0378163 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=240
@SiteID=1
@UserID=242e3032-7a51-4bfb-89c2-4295d9fde5f3
 0.0156356
6. 0.0378163 DBInterface.GetDataT show StoredProcedure [dbo].[CategoryListByProductId] @ProductId=240
@SiteID=1
@ShowHidden=False
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7. 0.0378163 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @Type=CATEGORY
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8. 0.0378163 DBInterface.GetDataT show StoredProcedure [dbo].[DocumentLoadByProductKey] @ProductID=240
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9. 0.0378163 DBInterface.get_oSQL show StoredProcedure [dbo].[ImageLoadByProductKey] @ProductID=240
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10. 0.0378163 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=240
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11. 0.0378163 DBInterface.get_oSQL show StoredProcedure [dbo].[CL_procGetOtherProductsBought] @ProductID=240
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12. 0.0378163 DBInterface.get_oSQL show StoredProcedure [dbo].[AccessoryListLoadByProductKey] @ProductID=240
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13. 0.0378163 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=240
@SiteID=1
@UserID=242e3032-7a51-4bfb-89c2-4295d9fde5f3
@ShowHidden=0
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14. 0.0534358 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=240
@UserID=242e3032-7a51-4bfb-89c2-4295d9fde5f3
@SiteID=1
 0
15. 0.0534358 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =242e3032-7a51-4bfb-89c2-4295d9fde5f3
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16. 0.0534358 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=240
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17. 0.0534358 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=389
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18. 0.0534358 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=389
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@SiteID=1
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19. 0.0534358 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesByProductId] @ProductId=240
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20. 0.0690608 DBInterface.GetDataT show StoredProcedure [dbo].[AttributesDistinctByProductID] @ProductId=240
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21. 0.0690608 DBInterface.GetDataT show StoredProcedure [dbo].[procGetAllCountryList] - 0
22. 0.0690608 DBInterface.GetDataT show StoredProcedure [dbo].[procGetCountryStatesList] @CountryCode=USA
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23. 0.0690608 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @PageUrl=/305581-8581-db9-2-x-3-matrix-switch-240.html
@Type=PRODUCT
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24. 0.0846919 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=240
@SiteID=1
@UserID=242e3032-7a51-4bfb-89c2-4295d9fde5f3
 0.0156311
25. 0.0846919 DBInterface.GetDataT show StoredProcedure [dbo].[CategoryListByProductId] @ProductId=240
@SiteID=1
@ShowHidden=False
 0
26. 0.0846919 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @Type=CATEGORY
 0
27. 0.0846919 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=240
@SiteID=1
@UserID=242e3032-7a51-4bfb-89c2-4295d9fde5f3
@ShowHidden=0
 0
28. 0.0846919 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=240
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29. 0.0846919 DBInterface.GetDataT show StoredProcedure [dbo].[DocumentLoadByProductKey] @ProductID=240
 0
30. 0.0846919 DBInterface.get_oSQL show StoredProcedure [dbo].[ImageLoadByProductKey] @ProductID=240
 0
31. 0.1003225 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=240
@SiteID=1
 0.0156306
32. 0.1003225 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=240
@SiteID=1
@UserID=242e3032-7a51-4bfb-89c2-4295d9fde5f3
@ShowHidden=0
 0
33. 0.1068377 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=240
@UserID=242e3032-7a51-4bfb-89c2-4295d9fde5f3
@SiteID=1
 0.0065152
34. 0.1068377 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =242e3032-7a51-4bfb-89c2-4295d9fde5f3
 0
35. 0.1068377 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=240
 0
36. 0.1068377 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesByProductId] @ProductId=240
 0
37. 0.1068377 DBInterface.GetDataT show StoredProcedure [dbo].[AttributesDistinctByProductID] @ProductId=240
 0
38. 0.1068377 DBInterface.GetDataT show StoredProcedure [dbo].[Cart_LoadByUserID] @UserID=242e3032-7a51-4bfb-89c2-4295d9fde5f3
@SiteID=1
 0
Total DB Execution Time 0.1004997
Session Key Session Value
UserId 242e3032-7a51-4bfb-89c2-4295d9fde5f3
IsDynamicallyGeneratedUserId True
AdminLastSitePage /305581-8581-db9-2-x-3-matrix-switch-240.html
AdminLastPage /GetProduct.aspx?PageKey=%2f305581-8581-db9-2-x-3-matrix-switch-240.html&unq=9/21/2026 7:17:58 PM
OrderNumber
Section Execution Time
DBInterface.vb 0.621928
MasterPage.master 0.1382999
DeveloperTools.ascx 0
Load Time:0.1538481s  |  Database Hits: 38