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EtherCom

EtherCom EFM12N-T TX to FX Fast Ethernet Media Converter ST Fiber 100Mbps

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SKU:
18809
MPN:
EFM12N-T
Condition:
Used
Availability:
Usually ships within 1-2 business days.
Weight:
3.00 LBS
Shipping:
Calculated at Checkout
  • EtherCom EFM12N-T Fast Ethernet media converter with included Hon-Kwang power adapter — front and top view
  • EtherCom EFM12N-T front panel showing RJ-45 MDI/MDIX port, dual ST fiber connectors, and LED status indicators
  • Hon-Kwang D12-10-1000 power adapter label showing 120V 60Hz input and 12VDC 1000mA output
  • EtherCom EFM12N-T bottom label showing model number, serial number, IEEE 802.3 compliance, CE mark, and Made in USA
$25.00
Was: $50.00
Current Stock: 1

Sold Out

Description

EtherCom EFM12N-T TX to FX Fast Ethernet Media Converter ST Fiber 100Mbps

Fast Ethernet media converter that bridges copper (RJ-45) and fiber optic (ST) connections at 100 Mbps. Converts 100Base-TX twisted-pair signals to 100Base-FX fiber signals for network extension over longer distances.

Specifications & What's Included

  • 100 Mbps Fast Ethernet conversion (100Base-TX to 100Base-FX)
  • RJ-45 copper connector (MDI/MDIX) and dual ST fiber connectors (TX/RX)
  • Full or Half Duplex operation (manual configuration required)
  • LED indicators: TX Rx, FX Rx, ERR, LK, PWR
  • External 12VDC 1000mA power supply (Hon-Kwang D12-10-1000 included)
  • Desktop/wall-mount form factor
  • IEEE 802.3 compliant

Applications

Media converters of this type were commonly deployed in enterprise networks and telecom installations to extend Ethernet over fiber runs when copper cabling was impractical. Used in campus networks, industrial facilities, and data center backbone connections where distance or electromagnetic interference required fiber optic links. Compatible with standard 100Base-TX and 100Base-FX network equipment and systems running IEEE 802.3 Fast Ethernet protocols.

Condition: Used
This EtherCom EFM12N-T Fast Ethernet Media Converter has been inspected and is in good condition. The unit shows normal light wear consistent with prior use. Both the converter and the included Hon-Kwang power adapter appear clean and intact. The ST fiber ports, RJ-45 port, and LED indicators all look undamaged. Please view our photo set and contact us if you have any questions.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
EtherCom
Model:
EFM12N-T
MPN:
EFM12N-T
Type:
Fast Ethernet Media Converter
SKU:
18809
Condition:
Used – Inspected and Tested
Seller Notes:
Includes Hon-Kwang D12-10-1000 power adapter (12VDC 1000mA)
Country/Region of Manufacture:
United States
Standards:
IEEE 802.3, CISPR22, IEC801-2, IEC801-3, IEC801-4
Network Speed:
100 Mbps (Fast Ethernet)
WAN / LAN Interface:
100Base-TX (RJ-45) to 100Base-FX (ST Fiber)
Fiber Connector Type:
ST (dual — TX and RX)
Copper Connector Type:
RJ-45 (MDI/MDIX)
Auto-Negotiation:
No — manual duplex configuration required
Duplex Mode:
Full Duplex (FDX) or Half Duplex (HDX)
LED Indicators:
TX Rx, FX Rx, ERR, LK, PWR
Power Supply:
External — 12VDC 1000mA
Power Adapter Input:
120V 60Hz 25W
Power Adapter Model:
Hon-Kwang D12-10-1000
Form Factor:
Desktop / Wall-mount
Compatible With:
100Base-TX and 100Base-FX IEEE 802.3 networks
Condition Notes:
EtherCom EFM12N-T Fast Ethernet Media Converter. Inspected and in good condition with normal light wear. Includes Hon-Kwang 12VDC power adapter. Please contact us with any questions.
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Allied Telesyn AT-MC101 Fast Ethernet Media Converter — front/top angled view showing ST fiber ports and RJ-45 port with paint wear on top Allied Telesyn AT-MC101 front panel showing 100Base-FX ST fiber ports, PWR LED, 100Base-TX RJ-45 port, REC/LNK indicators, and MDI/MDIX switch
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Allied Telesyn AT-MC101 Fast Ethernet Media Converter 100Base-TX to FX ST

Allied Telesyn

$20.00
Was: $60.00
Allied Telesyn AT-MC101 Fast Ethernet Media Converter 100Base-TX to FX STThis media converter bridges copper and fiber connections, converting between 100Base-TX (RJ-45) and 100Base-FX (ST)...
16800
SKU:
16800
Availability:
Usually ships within 1–2 business days.
Weight:
6.00 LBS
Brand:
Allied Telesyn
Model:
AT-MC101
MPN:
AT-MC101
Type:
Fast Ethernet Media Converter
SKU:
16800
Condition:
Used – Inspected
Country/Region of Manufacture:
Singapore
Form Factor:
Desktop / Standalone
Power Requirements:
12VDC, 500mA Max
Standards:
IEEE 802.3, UL Listed (5T48), CSA (LR105666)
Interface (Copper):
100Base-TX, RJ-45
Interface (Fiber):
100Base-FX, ST connector
Duplex:
Half & Full Duplex
MDI/MDI-X:
Yes — MDI/MDI-X switchable
802.1Q VLAN:
Transparent to 802.1Q packets
Rackmount Compatible:
Yes — via AT-MCR12, TRAY4, or TRAY1 chassis
Number of Ports:
2 (1x RJ-45, 1x ST fiber)
Seller Notes:
Unit only — no power supply included; requires 12VDC/500mA adapter
Compatible With:
AT-MCR12, TRAY4, TRAY1 rackmount chassis
FCC:
Part 15 Class II Equipment
Condition Notes:
Allied Telesyn AT-MC101 Fast Ethernet Media Converter. Inspected and in good used condition. Paint wear on top surface; ST and RJ-45 ports intact. No power supply included — requires 12VDC/500mA adapter.