A pair of 10/100/1000M Gigabit Ethernet Media Converter, Single mode, Single fiber, RJ45 to SC, 20KM #A7S2-33-1GX1GT-SC20A/A7S2-33-1GX1GT-SC20B

A pair of 10/100/1000M Gigabit Ethernet Media Converter, Single mode, Single fiber, RJ45 to SC, 20KM #A7S2-33-1GX1GT-SC20A/A7S2-33-1GX1GT-SC20B


HF P/N: A7S2-33-1GX1GT-SC20A/A7S2-33-1GX1GT-SC20B

Shipping Cost: Free Shipping on orders over USD $300

Availability: in stock


A pair of 10/100/1000M Gigabit Ethernet Media Converter, Single mode, Single fiber, RJ45 to SC, 20KM #A7S2-33-1GX1GT-SC20A/A7S2-33-1GX1GT-SC20B


HF P/N: A7S2-33-1GX1GT-SC20A/A7S2-33-1GX1GT-SC20B

Shipping Cost: Free Shipping on orders overUSD $300

Availability: in stock


A pair of 10/100/1000M Gigabit Ethernet Media Converter, Single mode, Single fiber, RJ45 to SC, 20KM

Cisco 10GBASE-LR SFP+ Optical Transceiver Connectivity Solutions
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Hifiber's A7S2-33-1GX1GT-SC20A/A7S2-33-1GX1GT-SC20B are used to expanding existing Gigabit Ethernet networks. The easy implementation and expansion of 1000Base-TX/FX networks can be further assured with this converter.

Main Features

  • Optical Port: 1.25Gbps, Single SC fiber, support Gigabit Ethernet
  • RJ45 Port: UTP CAT5 10M/100M/1000M, Full Duplex or Half Duplex; Supports MDI/MDI-X auto crossover
  • Complies with IEEE 802.3, IEEE 802.3u, IEEE802.3z, IEEE802.3ab, IEEE 802.3x
  • Auto negotiation function allows UTP port to auto select 10M, 100M or 1000M
  • Extends distance up to 20km (single mode fiber)
  • Status LED's for TX, FX LINK/ACT, POWER, FDX to easily monitor network status
  • 1Mbit RAM for data buffer
  • Supports jumbo frame size 9K bytes
  • Supports working temperature range from 0°C to 60°C
  • FCC Class A & CE approved


  • 1x Ethernet port (RJ45) 10/100/1000Base-Tx
  • 1x Optical port (1x9) 1000Base-Fx

Optical Port

  • 1550nm/1310nm Single mode
  • Transfer Distance: up to 20km
  • Connectors: SC connector
  • Fiber core: 8.3um, 8.7um, 9um and 10um on single mode fiber

Ethernet Port

  • Standard: IEEE 802.3, IEEE 802.3u, IEEE802.3z, IEEE802.3ab, IEEE 802.3x
  • Available speed: auto-detective 10/100/1000Mbps Full-Duplex and Half-Duplex auto-negotiation
  • Connectors: RJ-45 Connector; MDI/MDI-X connection auto-sensing

Ethernet Port

  • Standard: IEEE 802.3, IEEE 802.3u, IEEE802.3z, IEEE802.3ab, IEEE 802.3x
  • Available speed: auto-detective 10/100/1000Mbps Full-Duplex and Half-Duplex auto-negotiation
  • Connectors: RJ-45 Connector; MDI/MDI-X connection auto-sensing

LED Indicators

FX, TX, Link/Act(Left/Right), FDX, PWR

  • FX: Light on when fiber speed is 1000Mbps, else light off;
  • TX: Light on when TP speed is 1000Mbps, else light off;
  • Link/ACT: Left side is indicate for fiber port link/act and right side for TP, light flashing when data transmitting and receiving;
  • FDX: Light on when TP full-duplex mode is active, light off when TP half-duplex mode is active;
  • PWR: Light on when DC power on, else light off;LED indicatorLED indicator

Power Requirement

  • Input voltage: 5VDC
  • Power dissipation: ≤3 watts

Environmental Limits

  • Operating Temperature: 0°C to 60°C
  • Storage Temperature: -20°C to 70°C
  • Operating Humidity: 10% to 90% RH
  • Storage Humidity: 5% to 90% RH

Physical Characteristics

  • Housing: Metal enclosure
  • Dimensions: 93 x 71 x 27mm(D x W x H)
  • Weight: 0.5kg


Form Type
RJ45 to SC
Temp. Range
0 to 70°C (32 to 158°F)
Warranty & Service

Warranty & Service

Warranty Service Pack1*:     All HiFiber's products share 1-year standard warranty.
Warranty Service Pack2*:     Enhanced Item (Apply to Online order at HiFiber.com)

DAC Cables (Passive)
3-Year Warranty
DAC Cables (Active)
3-Year Warranty
AOC Cable
3-Year Warranty
Fiber Optic Transceivers
3-Year Warranty
Switch, Convertors
1-Year Warranty
1-Year Warranty
Optical System
1-Year Warranty
Patch Cords
3-Year Warranty
Power Adapter
0.5-Year Warranty
Consumer cable

* Remark:
  1. This warranty right only lies in the initial purchaser of HiFiber.com products and is not transferrable.
  2. This warranty right do not apply to special-offer products. For special-offer products, we will remark the warranty period under the product.
  3. The warranty clause does not include any product damage caused by improper installation, accident hazards, natural disasters, abuse, misuse, low power or over-voltage, incorrect operation, poor/ bad environmental conditions and any unauthorized disassembly, repair or modification.
  4. The warranty clause does not apply to products with modified internal electronic information, EEPROM information, etc.  Unauth
  5. The warranty clause does not include system problems caused by third-party software, upgraded software or upgraded IOS of the connecting devices.
* Exemption Clause:
  1. The information above is the complete warranty provisions for HiFiber.com products, which is the only effective warranty promise and will replace all written or verbal warranty commitments. Other warranties out of this clause, including decrees in other countries, provinces or locations and any indicative warranty clauses that is nonaggressive, merchantable or suited for some specific purposes, will not be recognized by HiFiber.com.
  2. HiFiber.com has not authorized its products to be used in those critical parts that is related to device life, or other applications in which product failure or mal-function may cause injury or death. If HiFiber.com products are used in military equipments, traffic control equipments, disaster prevention systems or medical equipments, HiFiber.com will not assume any liability for any possible casualties or property loss.
  3. HiFiber.com warranty responsibility only confines to maintenance, replacement and interest-free refund services. Any voilation of the warranty clause or law will be compensated only by maintenance, replacement or interest-free refund. To the maximum extent of law permission, HiFiber.com will not be held the responsibility to its customers or end users for any damage, expenses, loss of data, loss of income, loss of savings, loss of profits and any unavoidable or indirect damage resulted from the purchase, use or incapable function of HiFiber.com's product

15-Day money back Guarantee:

15-Day money back guarantee applies to all products sold by HiFiber.com provided that the items are new, undamaged, unmodified and in good resalable condition. If you are not satisfied with the product, you can apply return within 15 days.
All freight charges, transaction costs (bank charge or Paypal cost, etc) are the responsibility of the customer.

Returns are not acceptable if:
  1. The products are proved to have been abused, misused, replaced, repaired, or modified.
  2. After 15 days of delivery, returns are not acceptable. If the items are still under warranty period, customer could ask for repair or replacement. 
  3. No Return agreement was reached with a HiFiber.com sales representative before Returns.
  4. Return process is not done based on HiFiber.com Return instructions.


About Us

HiFiber.com is a leading supplier of fiber connectivity network solutions for Data Center and HPC. The main products include compatible module, direct-attach cable(DAC), active optical cable(AOC), Jump Cable, CWDM/DWDM system, network integrated card(NIC), etc. HiFiber.com is with the goal of providing quality guaranteed and cost effective products for customers all around the world.

HiFiber.com features a huge inventory of over US $1.0 million buffer stock that ready to shipped out in the same day of customers' purchase(in most cases) with no minimum orders or restocking fees.

What makes HiFiber.com completely different is the lifetime technical support. That's right, call anytime during business hours and get the help you need whether you made your purchase last week, last month, or last year! Our products are compliant with CE, RoHS, FCC, ISO9001, ISO14001 etc. and all products are environmentally friendly.

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