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

304159 - 4159 Hi Speed Rugged ST Fiber-to-RS485/422/232 Converter

    ST Fiber-to-RS485/422/232 Converter
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Base Price:
$433.00
Catalog No: 304159
Model No: 4159
Chassis/Rack Configuration:Board
Connector/Port:ST/DB9
Convert To:RS232/422/485
Convert From:Fiber
Fiber Size:50/125, 62.5/125, 100/140
Speed:RS232: 0 to 1.5 Mbps. RS422/485: 0 to 5 Mbps
Wavelength Nano:820nm/850nm, multimode

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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

Interface Converters, Glass Fiber to Copper Interface
Model 4159 Very High Speed Ruggedized ST Fiber to RS485 / RS422 / RS232 Interface Converter, Board Configuration

  • Four popular configurations, Fiber-to-Copper Media Converters.

Model 4159 ST Fiber-to-RS485/422/232 Copper media Converter Board

The Model 4159 Board Unit Glass Fiber to Copper converter is a very high speed ruggedized, protocol independent ST Fiber to RS485/422/232 interface converter.
Typical operating speeds are as follows: 

  • Up to 1.5 Mbps for RS232 to fiber conversion,
  • Up to 5 Mbps for RS485/422 to fiber conversion.

The Model 4159 Glass Fiber to Copper Interface Converter is designed to operate from -40°C to 85°C. Model 4159 is a member of Electro Standards Laboratories' (ESL) rugged community of glass fiber-to-copper media converters. 

The Model 4159 features protection circuitry on all receivers and transmitters for both RS232 and RS485/422 interfaces.  Model 4159/4159CC with front mounted threaded brackets for rack mounting in embedded applications. Model 4159CC is a Conformal Coated Printed Circuit Board (PCB) for military and harsh environments.

The converter is available as a desktop package (Model 4149) with optional DIN rail mounting hardware (Model 4149-DIN). 

The unit's power input is protected from transients and features 3kVDC isolation to prevent system ground loops. Model 4159 can be powered from a wide input range of 10VDC-36VDC, with modules also available for other voltage ranges such as 4.5VDC-9VDC and 19VDC-72VDC. 

Other features include user-selectable fiber polarity, TX, TX and Power indicator LEDs. There are also dual DB9 power connectors (M4159/4159CC only) for convenience in bused power applications.

Three functions in one unit:
ST Fiber to RS485 Converter
ST Fiber to RS422 Converter
ST Fiber to RS232 Converter

Block diagram for Model 4149/4149-DIN/4159/4159CC Glass ST Fiber to Copper RS485/422/232 Interface Converter:

High Speed Rugged ST Fiber to RS485/422/232 Converter block Diagram, Model 4149

 SPECIFCATIONS:

  •  Glass ST Fiber Interface:
    • Connectors: Fiber Optic ST
    • TX Power: -12.5 dBm
    • RX Sensitivity: -27.5 dBm
    • Optical Budget: 15 dB
    • Max. Link Distance with 62.5/125µm fiber:
      • 5.35 km at up to 5 Mbps, 25°C
      • 3.75 km at up to 5 Mbps, -40°C to 85°C
    • Wavelength: 820 nm/850 nm, multimode
    • Fiber Size: 50/125 µm, 62.5/125 µm, 100/140 µm.
  • Fiber Polarity:
    • Logical 1 = Light ON/OFF: User Selectable
  • Copper Interface:
    • Connectors: DB9, Female.
    • Type: RS485, RS422, RS232
    • Terminations: RS485/422 120 Ohm insertable.
  • Bit Rate (nom.):
    • RS232: 0 to 1.5 Mbps.
    • RS485/422: 0 to 5 Mbps.
  • Indicators:
    • LEDs:TXD, RXD, PWR.
  • Power:
    • Input Power:
      • 10VDC-36VDC std,
      • 4.5VDC-9VDC,
      • 19VDC-72VDC,
      • Others at 1.5W.
    • Isolation: 3 kVDC.
    • Connectors: Dual DB9F for Power Daisy Chaining (Board Only, Model 4159, Cat. No. 304159), DC Power Jack (Desktop Unit, Model 4149, Cat. No. 304149)
  • Operating Environment:
    • -40°C to 85°C.
  • Model 4159/4159CC Mechanical (Board Only, Model 4159/4159CC, Cat. No. 304159/304159CC)
    • Size: 3.9" x 3.9" x 0.63"
    • Weight: 3.5 oz. (99g)
    • Mounting: Mounting Holes, Right Angle Brackets
  • Model 4149 Mechanical (Desktop Unit, Model 4149, Cat. No. 304149)
    • Size: 5" x 4.25" x 1.4"
    • Weight: 10.1 oz. (286g)  
  • Model 4149-DIN Mechanical (DIN Rail Mounted Unit, Model 4149-DIN, Cat No 304149-DIN)
    • Size: 5" x 4.25" x 1.4"
    • Weight: 10.1 oz. (286g)
    • Mounting: 2 Threaded Holes Std. DIN rail.
    • DIN Rail Bracket Size: 2.84" x 1.24" x 0.16"
    • DIN Rail Bracket Weight: 0.9 oz (25.5g)

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.

Model 4149/4149-DIN/4159/4159CC 
Point-to-Point Isolated PC RS485/422/232 Communications Application: Copper Interface to Glass ST Fiber to Copper Interface Conversion
A PC is connected to the DB9 Copper interface of the Model 4149. The Glass ST Fiber port of the Model 4149 is connected to a second Model 4149 Glass ST Fiber port. The second Model 4149 DB9 port is connected to another computer via the DB9 port connector.

Model 4149 Glass Fiber-to-RS485/422/232 Copper Interface Converter via ST Fiber Link and DB9 Port

Model 4149/4149-DIN/4159/4159CC 
Isolated PC RS485/422/232 Communications to Fiber Serial interface / Network Application: Copper Interface to Glass ST Fiber Conversion
 A PC is connected to the DB9 Copper interface of the Model 4149. The Glass ST Fiber port of the Model 4149 is connected to a Fiber Serial Interface / Network up to 5 Mbps.

Model 4149 Isolated PC RS485/422/232 communications to fiber serial interface/network

Model 4165/4165-DIN/4166 to Model 4149/4149-DIN/4159/4159CC 
Isolated PC USB to RS232/RS485 Communications Serial Interface / Network Application: Copper Interface to Glass ST Fiber to Copper Interface Conversion
 A PC is connected to the USB Copper interface of the Model 4165. The Glass ST Fiber port of the Model 4165 is connected to the Model 4149 Glass ST Fiber port. The Model 4149 DB9 port is connected to a Serial Interface / Network up to 3 Mbps.

Model 4165/4165-DIN/4166 to Model 4149/4149-DIN/4159/4159CC Isolated PC USB to RS232/RS485 communications serial interface/network.

 All data switches, fiber optic interface converters, 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 of Fiber Optic Converters online are subject to change and verification.
All ESL Fiber to RS485 Converters, Fiber to RS422 Converters, and Fiber to RS232 Converters are available for export.  

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Developer Tools

Database Activity Shipping Rates Performance Tracking Cache Storage Session Storage
0.4239924 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 - 0.0154769
2. 0 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =5c57cfe2-9536-47d5-8873-f40f054641d3
 0
3. 0.0312566 DBInterface.get_oSQL show StoredProcedure [dbo].[RecentlyViewedListLoadByEntityType] @UserID=5c57cfe2-9536-47d5-8873-f40f054641d3
@EntityType=product
@RowCount=5
@SiteID=1
 0
4. 0.0312566 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @PageUrl=/304159-4159-hi-speed-rugged-st-fiber-to-rs485-422-232-converter-116.html
@Type=PRODUCT
 0
5. 0.0535563 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=116
@SiteID=1
@UserID=5c57cfe2-9536-47d5-8873-f40f054641d3
 0.0222997
6. 0.0535563 DBInterface.GetDataT show StoredProcedure [dbo].[CategoryListByProductId] @ProductId=116
@SiteID=1
@ShowHidden=False
 0
7. 0.0692099 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @Type=CATEGORY
 0.0156536
8. 0.0692099 DBInterface.GetDataT show StoredProcedure [dbo].[DocumentLoadByProductKey] @ProductID=116
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9. 0.0692099 DBInterface.get_oSQL show StoredProcedure [dbo].[ImageLoadByProductKey] @ProductID=116
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10. 0.084837 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=116
@SiteID=1
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11. 0.1160944 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=116
@SiteID=1
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12. 0.1538619 DBInterface.GetDataT show StoredProcedure [dbo].[Pricing_OutputPricing] @ItemCode=304149
 0.0065115
13. 0.1538619 DBInterface.GetDataT show StoredProcedure [dbo].[Pricing_OutputPricing] @ItemCode=304149-DIN
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14. 0.1538619 DBInterface.GetDataT show StoredProcedure [dbo].[Pricing_OutputPricing] @ItemCode=304159
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15. 0.1538619 DBInterface.GetDataT show StoredProcedure [dbo].[Pricing_OutputPricing] @ItemCode=304165
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16. 0.1695075 DBInterface.GetDataT show StoredProcedure [dbo].[Pricing_OutputPricing] @ItemCode=304165-DIN
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17. 0.1695075 DBInterface.GetDataT show StoredProcedure [dbo].[Pricing_OutputPricing] @ItemCode=304166
 0
18. 0.1851303 DBInterface.GetDataT show StoredProcedure [dbo].[Pricing_OutputPricing] @ItemCode=304172
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19. 0.1851303 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=116
@SiteID=1
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20. 0.2163869 DBInterface.get_oSQL show StoredProcedure [dbo].[CL_procGetOtherProductsBought] @ProductID=116
@SiteID=1
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21. 0.2163869 DBInterface.get_oSQL show StoredProcedure [dbo].[AccessoryListLoadByProductKey] @ProductID=116
@ShowHidden=0
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22. 0.2163869 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=116
@SiteID=1
@UserID=5c57cfe2-9536-47d5-8873-f40f054641d3
@ShowHidden=0
 0
23. 0.2320202 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=116
@UserID=5c57cfe2-9536-47d5-8873-f40f054641d3
@SiteID=1
 0.0156333
24. 0.2320202 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =5c57cfe2-9536-47d5-8873-f40f054641d3
 0
25. 0.2320202 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=116
 0
26. 0.2320202 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesByProductId] @ProductId=116
 0
27. 0.2320202 DBInterface.GetDataT show StoredProcedure [dbo].[AttributesDistinctByProductID] @ProductId=116
 0
28. 0.2320202 DBInterface.GetDataT show StoredProcedure [dbo].[procGetAllCountryList] - 0
29. 0.2320202 DBInterface.GetDataT show StoredProcedure [dbo].[procGetCountryStatesList] @CountryCode=USA
 0
30. 0.2476443 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @PageUrl=/304159-4159-hi-speed-rugged-st-fiber-to-rs485-422-232-converter-116.html
@Type=PRODUCT
 0.0156241
31. 0.2611629 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductLoadByPrimaryKey] @ProductID=116
@SiteID=1
@UserID=5c57cfe2-9536-47d5-8873-f40f054641d3
 0.0135186
32. 0.2768142 DBInterface.GetDataT show StoredProcedure [dbo].[CategoryListByProductId] @ProductId=116
@SiteID=1
@ShowHidden=False
 0.0156513
33. 0.2768142 DBInterface.GetDataT show StoredProcedure [dbo].[PageUrlLoadByPrimaryKey] @Type=CATEGORY
 0
34. 0.2768142 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=116
@SiteID=1
@UserID=5c57cfe2-9536-47d5-8873-f40f054641d3
@ShowHidden=0
 0
35. 0.2925162 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=116
 0
36. 0.3080666 DBInterface.GetDataT show StoredProcedure [dbo].[DocumentLoadByProductKey] @ProductID=116
 0.0155504
37. 0.3080666 DBInterface.get_oSQL show StoredProcedure [dbo].[ImageLoadByProductKey] @ProductID=116
 0
38. 0.3080666 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=116
@SiteID=1
 0
39. 0.3549521 DBInterface.get_oSQL show StoredProcedure [dbo].[ProductRelationshipListByProductID] @ProductID=116
@SiteID=1
 0
40. 0.3928377 DBInterface.get_oSQL show StoredProcedure [dbo].[SKUListLoadByProductKey] @ProductID=116
@SiteID=1
@UserID=5c57cfe2-9536-47d5-8873-f40f054641d3
@ShowHidden=0
 0
41. 0.4085155 DBInterface.get_oSQL show StoredProcedure [dbo].[PriceListBySkuId] @SkuList=116
@UserID=5c57cfe2-9536-47d5-8873-f40f054641d3
@SiteID=1
 0.0156778
42. 0.4085155 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =5c57cfe2-9536-47d5-8873-f40f054641d3
 0
43. 0.4085155 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesBySkuId] @SkuId=116
 0
44. 0.4085155 DBInterface.GetDataT show StoredProcedure [dbo].[getProductAttributesByProductId] @ProductId=116
 0
45. 0.4085155 DBInterface.GetDataT show StoredProcedure [dbo].[AttributesDistinctByProductID] @ProductId=116
 0
46. 0.4085155 DBInterface.GetDataT show StoredProcedure [dbo].[Cart_LoadByUserID] @UserID=5c57cfe2-9536-47d5-8873-f40f054641d3
@SiteID=1
 0
Total DB Execution Time 0.1828656
Session Key Session Value
UserId 5c57cfe2-9536-47d5-8873-f40f054641d3
IsDynamicallyGeneratedUserId True
AdminLastSitePage /304159-4159-hi-speed-rugged-st-fiber-to-rs485-422-232-converter-116.html
AdminLastPage /GetProduct.aspx?PageKey=%2f304159-4159-hi-speed-rugged-st-fiber-to-rs485-422-232-converter-116.html&unq=8/7/2026 2:01:24 AM
OrderNumber
Section Execution Time
DBInterface.vb 0
MasterPage.master 0.4239924
DeveloperTools.ascx 0
Load Time:0.4239924s  |  Database Hits: 46