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

Catalog # 309256 - Model 9256 2-Channel DB25 A/B Switch

    2-Channel DB25 A/B Switch
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Base Price:
$520.00
Catalog No: 309256
Model No: 9256 2-Channel DB25 A/B Switch
Feature:Supports the complete RS530 interface
Switch Type (Fiber, Ethernet, etc.):Serial
Positions:2 (e.g. A/B and Common)
Channels per Switch/Chassis:2
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, RS530, Rotary Switches
Model 9256 Dual Channel RS530 DB25 A/B Switch

  • Also applicable to RS232 Serial Data Interface, DB25 Parallel Printer Interface, and ANY DB25 Connector Interface (All 25 pins are switched).

Dual Channel RS530 DB25 A/B Switch

SPECIFICATIONS:

  • PORT CONNECTORS: (3) DB25 female connectors for each of two channels labeled "A", "B", and "COMMON".
  • FRONT PANEL CONTROL: (2) Rotary Switches on front panel, one knob per channel to switch each channel independently.
  • POWER: No power required. Manually operated.
  • DIMENSIONS: Rackmount 19.0" W x 1.75" H x 8.0" D. (48.3 x 4.4 x 20.3 cm)
  • WEIGHT: Approximatley, 4.5 lbx (2.0 kg)

DUAL CHANNEL RS530 DB25 A/B SWITCH APPLICATION, INDEPENDENT MANUAL CONTROL: The drawing illustrates two channels of independent switching via local controls. A COMMON device is connected to the DB25 COMMON port for each of two channels (Channel 1 and Channel 2). Both COMMON Devices, (COMMON Device 1 and COMMON Device 2), each has access to two other devices connected to the DB25 A and B ports of the Model 9256 unit.

Model 9256 Dual Channel RS530 DB25 A/B Switch Application.

FEATURES:

  • Each of two channels allows quick connection to any one of two devices from one COMMON device.
  • Independently switches each of two channels via two front-panel rotary switches.
  • High quality sealed switch with self-wiping low impedance contacts.
  • All 25 pins of the DB25 interface are switched via break-before-make rotary switch.
  • Supports the complete RS530 or ANY DB25 interface device.
  • Transparent to data speed and format.
  • Eliminates the need  to plug and unplug cables.
  • Attractive all metal black box packaging provides EMI/RFI shielding.
  • Chassis extrusions (front, rear, sides and ears) are 6063T6 Aluminum, black anodized.  The top and bottom covers are vinyl clad cold-rolled steel.
  • Rackmount configuration is standard.
  • Lifetime warranty against manufacturing defects.
  • For an example of similar switch with custom labeling, see Model 9257, Cat No 309257. 

Ask about our popular Model 900 EIA/TIA RS-530 Interface Analyzer.
Tri-State LED's display Red, Green & Off  to Indicate Signal Status.
Easy to use, for fault isolation.

Model 900 EIA/TIA RS-530 Interface Analyzer.

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. 

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Developer Tools

Database Activity Shipping Rates Performance Tracking Cache Storage Session Storage
0.3010174 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 - 0.0156673
2. 0 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =c0c56dc7-a868-4a5d-a0e8-1feacdd9e0ff
 0
3. 0.0311934 DBInterface.get_oSQL show StoredProcedure [dbo].[RecentlyViewedListLoadByEntityType] @UserID=c0c56dc7-a868-4a5d-a0e8-1feacdd9e0ff
@EntityType=product
@RowCount=5
@SiteID=1
 0
4. 0.0311934 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @PageUrl=/309256-9256-2-channel-db25-a-b-switch-623.html
@Type=PRODUCT
 0
5. 0.0468497 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=623
@SiteID=1
@UserID=c0c56dc7-a868-4a5d-a0e8-1feacdd9e0ff
 0.0156563
6. 0.0533745 DBInterface.GetDataT show StoredProcedure [dbo].[CategoryListByProductId] @ProductId=623
@SiteID=1
@ShowHidden=False
 0
7. 0.0533745 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @Type=CATEGORY
 0
8. 0.0533745 DBInterface.GetDataT show StoredProcedure [dbo].[DocumentLoadByProductKey] @ProductID=623
 0
9. 0.0533745 DBInterface.get_oSQL show StoredProcedure [dbo].[ImageLoadByProductKey] @ProductID=623
 0
10. 0.0690466 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=623
@SiteID=1
 0
11. 0.0846634 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=623
@SiteID=1
 0
12. 0.1002927 DBInterface.GetDataT show StoredProcedure [dbo].[Pricing_OutputPricing] @ItemCode=300900
 0.0156293
13. 0.1002927 DBInterface.GetDataT show StoredProcedure [dbo].[Pricing_OutputPricing] @ItemCode=309257
 0
14. 0.1002927 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=623
@SiteID=1
 0
15. 0.1160114 DBInterface.get_oSQL show StoredProcedure [dbo].[CL_procGetOtherProductsBought] @ProductID=623
@SiteID=1
 0
16. 0.1160114 DBInterface.get_oSQL show StoredProcedure [dbo].[AccessoryListLoadByProductKey] @ProductID=623
@ShowHidden=0
 0
17. 0.1317321 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=623
@SiteID=1
@UserID=c0c56dc7-a868-4a5d-a0e8-1feacdd9e0ff
@ShowHidden=0
 0.0157207
18. 0.1317321 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=623
@UserID=c0c56dc7-a868-4a5d-a0e8-1feacdd9e0ff
@SiteID=1
 0
19. 0.1471794 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =c0c56dc7-a868-4a5d-a0e8-1feacdd9e0ff
 0.0154473
20. 0.1471794 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=623
 0
21. 0.1471794 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=295
@SiteID=0
@ShowHidden=0
 0
22. 0.1537367 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=295
@UserID=
@SiteID=1
 0
23. 0.1537367 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=397
@SiteID=0
@ShowHidden=0
 0
24. 0.1693901 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=397
@UserID=
@SiteID=1
 0.0156534
25. 0.1693901 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=394
@SiteID=0
@ShowHidden=0
 0
26. 0.1693901 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=394
@UserID=
@SiteID=1
 0
27. 0.1693901 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=410
@SiteID=0
@ShowHidden=0
 0
28. 0.1693901 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=410
@UserID=
@SiteID=1
 0
29. 0.1850291 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=186
@SiteID=0
@ShowHidden=0
 0
30. 0.1850291 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=186
@UserID=
@SiteID=1
 0
31. 0.1850291 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesByProductId] @ProductId=623
 0
32. 0.1850291 DBInterface.GetDataT show StoredProcedure [dbo].[AttributesDistinctByProductID] @ProductId=623
 0
33. 0.1850291 DBInterface.GetDataT show StoredProcedure [dbo].[procGetAllCountryList] - 0
34. 0.1995695 DBInterface.GetDataT show StoredProcedure [dbo].[procGetCountryStatesList] @CountryCode=USA
 0.0145404
35. 0.1995695 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @PageUrl=/309256-9256-2-channel-db25-a-b-switch-623.html
@Type=PRODUCT
 0
36. 0.2152111 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=623
@SiteID=1
@UserID=c0c56dc7-a868-4a5d-a0e8-1feacdd9e0ff
 0.0156416
37. 0.2152111 DBInterface.GetDataT show StoredProcedure [dbo].[CategoryListByProductId] @ProductId=623
@SiteID=1
@ShowHidden=False
 0
38. 0.2240534 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @Type=CATEGORY
 0.0088423
39. 0.2240534 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=623
@SiteID=1
@UserID=c0c56dc7-a868-4a5d-a0e8-1feacdd9e0ff
@ShowHidden=0
 0
40. 0.2308483 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=623
 0
41. 0.2308483 DBInterface.GetDataT show StoredProcedure [dbo].[DocumentLoadByProductKey] @ProductID=623
 0
42. 0.2308483 DBInterface.get_oSQL show StoredProcedure [dbo].[ImageLoadByProductKey] @ProductID=623
 0
43. 0.2308483 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=623
@SiteID=1
 0
44. 0.2464709 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=623
@SiteID=1
 0
45. 0.2540788 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=623
@SiteID=1
@UserID=c0c56dc7-a868-4a5d-a0e8-1feacdd9e0ff
@ShowHidden=0
 0
46. 0.2697223 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=623
@UserID=c0c56dc7-a868-4a5d-a0e8-1feacdd9e0ff
@SiteID=1
 0.0156435
47. 0.2697223 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =c0c56dc7-a868-4a5d-a0e8-1feacdd9e0ff
 0
48. 0.2697223 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=623
 0
49. 0.2697223 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesByProductId] @ProductId=623
 0
50. 0.2697223 DBInterface.GetDataT show StoredProcedure [dbo].[AttributesDistinctByProductID] @ProductId=623
 0
51. 0.2697223 DBInterface.GetDataT show StoredProcedure [dbo].[Cart_LoadByUserID] @UserID=c0c56dc7-a868-4a5d-a0e8-1feacdd9e0ff
@SiteID=1
 0
Total DB Execution Time 0.1484421
Session Key Session Value
UserId c0c56dc7-a868-4a5d-a0e8-1feacdd9e0ff
IsDynamicallyGeneratedUserId True
AdminLastSitePage /309256-9256-2-channel-db25-a-b-switch-623.html
AdminLastPage /GetProduct.aspx?PageKey=%2f309256-9256-2-channel-db25-a-b-switch-623.html&unq=8/7/2026 1:59:06 AM
OrderNumber
Section Execution Time
DBInterface.vb 0
MasterPage.master 0.2853896
DeveloperTools.ascx 0.0156278
Load Time:0.3010174s  |  Database Hits: 51