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

Catalog # 309451 - Model 9451 DB25 A/B/C Switch

    DB25 A/B/C Switch
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Base Price:
$455.00
Catalog No: 309451
Model No: 9451
Switch Type (Fiber, Ethernet, etc.):Serial
Positions:3
Channels per Switch/Chassis:1
Chassis/Rack Configuration:Rackmount
Connector/Port:DB25
Pins Switched:25
Local/Manual Control:Rotary Knob

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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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Overview

DB25 Manual Network Switches, 3-Positions, Rotary Switches
Model 9451 DB25 A/B/C Switch, Manual Operation, Rackmount 

  • Provides reliable network backup for mission critical systems. 

Model 9451 DB25 A/B/C manual network switch is manually operated and requires no power.

SPECIFICATIONS:

  • PORT CONNECTORS:  (4) DB25 female connectors labeled A, B, C and Common.
  • FRONT PANEL CONTROLS:  (1) Rotary Switch on front panel selects A, B, C.
  • LIFE: 10,000 cycles at the rate of 20-25 cycles/minute and no load.
  • OPERATING & STORAGE TEMP: -10° C TO 60° C. 
  • POWER:  Manually operated.  No power required.
  • DIMENSIONS:  Rackmount 19.0"W x 1.75"H x 8.75"D. (48.3 x 4.5 x 22.3 cm)
  • WEIGHT: Approximately 4.4 lbs. (2.0 kg.)

DB25 MANUAL NETWORK APPLICATION: The drawing illustrates a COMMON device or network connected to the DB25 COM port accessing any one of the DB25 devices or networks connected to DB25 ports A, B, and C for the Model 9451.

Model 9451 application drawing illustrates an A/B/C switch with DB25 connectors.

 FEATURES:

  • Allows quick connection to any one of three DB25 devices or networks from one COMMON device or network.
  • Manual operation via front panel rotary switch.
  • High reliability sealed switch with self-wiping low impedance contacts.
  • Transparent to data speed and format.
  • All 25 pins of the DB25 interface are switched via break-before-make rotary switch.
  • Eliminates the need to plug and unplug cables.
  • No external power required.
  • Attractive all metal black box packaging provides EMI/RFI shielding.
  • Custom length DB25 cables available for your switch installation.
  • Lifetime warranty against manufacturing defects.
  • Electro Standards manufactures a wide range of RS232 network switches.

The Model 9451 allows the user to access three DB25 devices connected to its A, B and C ports with one DB25 device connected to its Common port.  The unit is manually operated requiring no power. Port selection is quick and easy via front panel rotary switch.

The Model 9451 is enclosed in a 1U, full rack size, all metal black chassis designed to provide EMI/RFI shielding and fit in a standard 19" rack. 

Ask about our popular Model 700 RS-232 Breakout Box.
Tri-State LED's monitor the data interface for fault isolation.

Model 700 RS-232 Breakout Box with Tri-State LED's.

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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Developer Tools

Database Activity Shipping Rates Performance Tracking Cache Storage Session Storage
2.0521847 seconds
# 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 - 0.015516
2. 0 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =b2bd6478-1096-470f-a9a4-47367f5387ee
 0
3. 0.0312448 DBInterface.get_oSQL show StoredProcedure [dbo].[RecentlyViewedListLoadByEntityType] @UserID=b2bd6478-1096-470f-a9a4-47367f5387ee
@EntityType=product
@RowCount=5
@SiteID=1
 0
4. 0.1002977 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @PageUrl=/309451-9451-db25-a-b-c-switch-630.html
@Type=PRODUCT
 0
5. 0.2006758 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
@UserID=b2bd6478-1096-470f-a9a4-47367f5387ee
 0.1003781
6. 0.2006758 DBInterface.GetDataT show StoredProcedure [dbo].[CategoryListByProductId] @ProductId=630
@SiteID=1
@ShowHidden=False
 0
7. 0.2006758 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @Type=CATEGORY
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8. 0.2163007 DBInterface.GetDataT show StoredProcedure [dbo].[DocumentLoadByProductKey] @ProductID=630
 0
9. 0.2163007 DBInterface.get_oSQL show StoredProcedure [dbo].[ImageLoadByProductKey] @ProductID=630
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10. 0.2319273 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=630
@SiteID=1
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11. 0.2319273 DBInterface.get_oSQL show StoredProcedure [dbo].[CL_procGetOtherProductsBought] @ProductID=630
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12. 0.2475623 DBInterface.get_oSQL show StoredProcedure [dbo].[AccessoryListLoadByProductKey] @ProductID=630
@ShowHidden=0
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13. 0.301016 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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14. 0.301016 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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15. 0.301016 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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16. 0.3166582 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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17. 0.3166582 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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18. 0.3166582 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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19. 0.3166582 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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20. 0.3166582 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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21. 0.3166582 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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22. 0.3166582 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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23. 0.3322677 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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24. 0.3322677 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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25. 0.3322677 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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26. 0.3479175 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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27. 0.3479175 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
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28. 0.3544418 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=630
@SiteID=1
@UserID=b2bd6478-1096-470f-a9a4-47367f5387ee
@ShowHidden=0
 0
29. 0.3700998 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=632
@UserID=b2bd6478-1096-470f-a9a4-47367f5387ee
@SiteID=1
 0
30. 0.3700998 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =b2bd6478-1096-470f-a9a4-47367f5387ee
 0
31. 0.3700998 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=632
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32. 0.3700998 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=917
@SiteID=0
@ShowHidden=0
 0
33. 0.3857401 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=919
@UserID=
@SiteID=1
 0
34. 0.3857401 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=265
@SiteID=0
@ShowHidden=0
 0
35. 0.4014133 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=265
@UserID=
@SiteID=1
 0.0156732
36. 0.4014133 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=610
@SiteID=0
@ShowHidden=0
 0
37. 0.4014133 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=610
@UserID=
@SiteID=1
 0
38. 0.4014133 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=76
@SiteID=0
@ShowHidden=0
 0
39. 0.4169796 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=76
@UserID=
@SiteID=1
 0.0155663
40. 0.4169796 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=409
@SiteID=0
@ShowHidden=0
 0
41. 0.4169796 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=409
@UserID=
@SiteID=1
 0
42. 0.4169796 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesByProductId] @ProductId=630
 0
43. 0.4326503 DBInterface.GetDataT show StoredProcedure [dbo].[AttributesDistinctByProductID] @ProductId=630
 0.0156707
44. 0.4326503 DBInterface.GetDataT show StoredProcedure [dbo].[procGetAllCountryList] - 0
45. 0.4326503 DBInterface.GetDataT show StoredProcedure [dbo].[procGetCountryStatesList] @CountryCode=USA
 0
46. 0.4326503 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @PageUrl=/309451-9451-db25-a-b-c-switch-630.html
@Type=PRODUCT
 0
47. 0.4482561 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=630
@SiteID=1
@UserID=b2bd6478-1096-470f-a9a4-47367f5387ee
 0.0156058
48. 0.4547921 DBInterface.GetDataT show StoredProcedure [dbo].[CategoryListByProductId] @ProductId=630
@SiteID=1
@ShowHidden=False
 0
49. 0.4547921 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @Type=CATEGORY
 0
50. 0.4547921 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=630
@SiteID=1
@UserID=b2bd6478-1096-470f-a9a4-47367f5387ee
@ShowHidden=0
 0
51. 0.4547921 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=632
 0
52. 0.4547921 DBInterface.GetDataT show StoredProcedure [dbo].[DocumentLoadByProductKey] @ProductID=630
 0
53. 0.4547921 DBInterface.get_oSQL show StoredProcedure [dbo].[ImageLoadByProductKey] @ProductID=630
 0
54. 0.4704567 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=630
@SiteID=1
 0
55. 0.4704567 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=630
@SiteID=1
@UserID=b2bd6478-1096-470f-a9a4-47367f5387ee
@ShowHidden=0
 0
56. 0.4704567 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=632
@UserID=b2bd6478-1096-470f-a9a4-47367f5387ee
@SiteID=1
 0
57. 0.4704567 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =b2bd6478-1096-470f-a9a4-47367f5387ee
 0
58. 0.4704567 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=632
 0
59. 0.4860882 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesByProductId] @ProductId=630
 0.0156315
60. 0.4860882 DBInterface.GetDataT show StoredProcedure [dbo].[AttributesDistinctByProductID] @ProductId=630
 0
61. 0.4860882 DBInterface.GetDataT show StoredProcedure [dbo].[Cart_LoadByUserID] @UserID=b2bd6478-1096-470f-a9a4-47367f5387ee
@SiteID=1
 0
Total DB Execution Time 0.2096766
Session Key Session Value
UserId b2bd6478-1096-470f-a9a4-47367f5387ee
IsDynamicallyGeneratedUserId True
AdminLastSitePage /309451-9451-db25-a-b-c-switch-630.html
AdminLastPage /GetProduct.aspx?PageKey=%2f309451-9451-db25-a-b-c-switch-630.html&unq=8/7/2026 1:58:26 AM
OrderNumber
Section Execution Time
DBInterface.vb 0
MasterPage.master 0.5016042
DeveloperTools.ascx 0
Load Time:2.0521847s  |  Database Hits: 61