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

Catalog # 305428 - Model 4428 DB9 A/B Network Switch

    DB9 A/B Network Switch
Click image to enlarge
Base Price:
$445.00
Catalog No: 305428
Model No: 4428
Feature:Remotely Controllable
Trigger Char.:ASCII
Switch Type (Fiber, Ethernet, etc.):Serial
Positions:2 (e.g. A/B and Common)
Channels per Switch/Chassis:1
Chassis/Rack Configuration:Desktop
Connector/Port:DB9
Pins Switched:9
Remote Control Type:RS232 Serial
Remote Control Port:DB9
Local/Manual Control:Pushbutton

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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.

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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


Path Way® Remotely Controllable Network Switch, DB9
Model 4428 DB9 A/B Data Switch with Serial Remote Control

  • Switch ANY DB9 interface device to share or backup.

PathWay Model 4428 DB9 A/B Switch with Serial Remote Control

 SPECIFICATIONS:

  • PORT CONNECTORS: (3) DB9 (F) connectors labeled A, B, and COMMON.
  • FRONT PANEL CONTROL: (1) Manual pushbutton allows local switching.
  • DISPLAY: (2) Front panel LED's display switch position and power status.
  • REMOTE CONTROL: (1) DB9 Female connector on rear panel accepts ASCII RS232 Serial Data at standard baud rates from 300 to 19200 for Remote Control operation.
  • POWER: UL approved 100VAC/240VAC, 50Hz/60Hz wall mount power module supplies 12 VDC, 500mA to the unit.  Has 2-prong, US, non-polarized plug.
  • DIMENSIONS: Desktop 8.15" W x 2.38" H x 7.27" D (20.8 x 6.1 x 18.5 cm). 
  • WEIGHT:  Approximately 1.7 lbs (0.8 Kg)

APPLICABLE TO ANY DB9 INTERFACE DEVICE TO SHARE OR BACKUP: The drawing illustrates a COMMON device connected to the DB9 COMMON port sharing between two devices connected to the DB9 A and B ports, respectively. The DB9 REMOTE port accepts ASCII RS232 Serial data so the user can control and monitor the switch off-site. 

Model 4428 DB9 A/B Network Switch Application with Serial Remote Control

  FEATURES:

  • Allows access to two DB9 devices from one COMMON DB9 device.
  • All (9) pins of the DB9 interface are switched via break-before-make electromechanical relays.
  • Eliminates the need to plug and unplug cables.
  • The switch ports are transparent to all data.
  • Local control via front-panel pushbutton.
  • The REMOTE port accepts RS232 Serial Data ASCII commands that allow the user to control the switch position, lockout front panel operations and obtain switch status.
  • The REMOTE port features Autobaud Detection Mode that supports standard baud rates from 300 to 19200.
  • Front-panel LED's display switch position and power status.
  • The unit maintains last set position on power loss and continues to pass data.
  • Attractive anodized black box packaging provides EMI/RFI shielding.
  • Custom length DB9 cables available for your switch installation.
  • For a dual channel version of this switch, see Model 4429. 

The PathWay® Model 4428 Single Channel DB9 A/B Switch with RS232 Remote allows the user the capability of sharing a single port interface device connected to the COMMON port among two other devices connected to the A and B ports, with remote access functionality. The Model 4428 is packaged in a slim desktop style enclosure.

The switch may be controlled locally by manually operating the front panel pushbutton or remotely from the DB9 female serial interface Remote port located on the rear of the unit. The Remote port features an Autobaud Detection Mode that can be used to select standard baud rates from 300 to 19200.  The front panel LED display indicates the switch position and unit power status.

Option: Wide Range Power Supply: (Cat No. 517277) CE, RoHS, and UL listed table mount power module, 100VAC/240VAC, 50/60Hz for use in place of the standard power module that is included with the unit.  Has IEC 60320 C14 inlet.  Ideal for international applications.

 PathWay® is a registered trademark of Electro Standards Laboratories. 

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 products are availabe for export.

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Developer Tools

Database Activity Shipping Rates Performance Tracking Cache Storage Session Storage
2.5064957 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
2. 0 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =f34c2e01-4340-43e8-9ea3-b4043d3b4e36
 0
3. 0.0773608 DBInterface.get_oSQL show StoredProcedure [dbo].[RecentlyViewedListLoadByEntityType] @UserID=f34c2e01-4340-43e8-9ea3-b4043d3b4e36
@EntityType=product
@RowCount=5
@SiteID=1
 0.0306537
4. 0.0929902 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @PageUrl=/305428-4428-db9-a-b-network-switch-217.html
@Type=PRODUCT
 0
5. 0.0929902 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=217
@SiteID=1
@UserID=f34c2e01-4340-43e8-9ea3-b4043d3b4e36
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6. 0.1086202 DBInterface.GetDataT show StoredProcedure [dbo].[CategoryListByProductId] @ProductId=217
@SiteID=1
@ShowHidden=False
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7. 0.1086202 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @Type=CATEGORY
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8. 0.1086202 DBInterface.GetDataT show StoredProcedure [dbo].[DocumentLoadByProductKey] @ProductID=217
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9. 0.1086202 DBInterface.get_oSQL show StoredProcedure [dbo].[ImageLoadByProductKey] @ProductID=217
 0
10. 0.2706543 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=217
@SiteID=1
 0.1463996
11. 0.2863215 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=217
@SiteID=1
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12. 0.3019615 DBInterface.GetDataT show StoredProcedure [dbo].[Pricing_OutputPricing] @ItemCode=304429
 0
13. 0.3175712 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=217
@SiteID=1
 0.0156097
14. 0.3175712 DBInterface.get_oSQL show StoredProcedure [dbo].[CL_procGetOtherProductsBought] @ProductID=217
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15. 0.3332009 DBInterface.get_oSQL show StoredProcedure [dbo].[AccessoryListLoadByProductKey] @ProductID=217
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16. 0.3332009 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=217
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@ShowHidden=0
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17. 0.3332009 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=217
@UserID=f34c2e01-4340-43e8-9ea3-b4043d3b4e36
@SiteID=1
 0
18. 0.3332009 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =f34c2e01-4340-43e8-9ea3-b4043d3b4e36
 0
19. 0.3332009 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=217
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20. 0.3332009 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=57
@SiteID=0
@ShowHidden=0
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21. 0.3488296 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=57
@UserID=
@SiteID=1
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22. 0.3488296 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=182
@SiteID=0
@ShowHidden=0
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23. 0.3644533 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=182
@UserID=
@SiteID=1
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24. 0.3644533 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=428
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@ShowHidden=0
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25. 0.3709696 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=428
@UserID=
@SiteID=1
 0.0065163
26. 0.3709696 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=607
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 0
27. 0.3709696 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=607
@UserID=
@SiteID=1
 0
28. 0.3709696 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=294
@SiteID=0
@ShowHidden=0
 0
29. 0.3866139 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=294
@UserID=
@SiteID=1
 0.0156443
30. 0.3866139 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesByProductId] @ProductId=217
 0
31. 0.3866139 DBInterface.GetDataT show StoredProcedure [dbo].[AttributesDistinctByProductID] @ProductId=217
 0
32. 0.3866139 DBInterface.GetDataT show StoredProcedure [dbo].[procGetAllCountryList] - 0
33. 0.3866139 DBInterface.GetDataT show StoredProcedure [dbo].[procGetCountryStatesList] @CountryCode=USA
 0
34. 0.3866139 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @PageUrl=/305428-4428-db9-a-b-network-switch-217.html
@Type=PRODUCT
 0
35. 0.4022408 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=217
@SiteID=1
@UserID=f34c2e01-4340-43e8-9ea3-b4043d3b4e36
 0.0156269
36. 0.4022408 DBInterface.GetDataT show StoredProcedure [dbo].[CategoryListByProductId] @ProductId=217
@SiteID=1
@ShowHidden=False
 0
37. 0.4022408 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @Type=CATEGORY
 0
38. 0.4022408 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=217
@SiteID=1
@UserID=f34c2e01-4340-43e8-9ea3-b4043d3b4e36
@ShowHidden=0
 0
39. 0.4022408 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=217
 0
40. 0.4179744 DBInterface.GetDataT show StoredProcedure [dbo].[DocumentLoadByProductKey] @ProductID=217
 0.0157336
41. 0.4179744 DBInterface.get_oSQL show StoredProcedure [dbo].[ImageLoadByProductKey] @ProductID=217
 0
42. 0.4179744 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=217
@SiteID=1
 0
43. 0.4335001 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=217
@SiteID=1
 0.0155257
44. 0.4335001 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=217
@SiteID=1
@UserID=f34c2e01-4340-43e8-9ea3-b4043d3b4e36
@ShowHidden=0
 0
45. 0.4335001 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=217
@UserID=f34c2e01-4340-43e8-9ea3-b4043d3b4e36
@SiteID=1
 0
46. 0.4491275 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =f34c2e01-4340-43e8-9ea3-b4043d3b4e36
 0.0156274
47. 0.4491275 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=217
 0
48. 0.4491275 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesByProductId] @ProductId=217
 0
49. 0.4491275 DBInterface.GetDataT show StoredProcedure [dbo].[AttributesDistinctByProductID] @ProductId=217
 0
50. 0.4491275 DBInterface.GetDataT show StoredProcedure [dbo].[Cart_LoadByUserID] @UserID=f34c2e01-4340-43e8-9ea3-b4043d3b4e36
@SiteID=1
 0
Total DB Execution Time 0.2929609
Session Key Session Value
UserId f34c2e01-4340-43e8-9ea3-b4043d3b4e36
IsDynamicallyGeneratedUserId True
AdminLastSitePage /305428-4428-db9-a-b-network-switch-217.html
AdminLastPage /GetProduct.aspx?PageKey=%2f305428-4428-db9-a-b-network-switch-217.html&unq=8/7/2026 1:58:50 AM
OrderNumber
Section Execution Time
DBInterface.vb 0
MasterPage.master 0.4649333
DeveloperTools.ascx 0
Load Time:2.5064957s  |  Database Hits: 50