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Compact metal box with ST duplex and RJ45 ports, status LEDs, power input

STARTECH

STARTECH MCM110ST2 10/100 Multi Mode Fiber Copper Fast Ethernet Media Converter ST 2 km

SKU CH-HW23-ZQJQA MPN MCM110ST2

Converts 10/100 Mbps Ethernet to multi-mode fibre over 2 km with ST duplex and RJ-45 ports

  • Device TypeConverter
  • StandardsIEEE 802.3 10BASE-T IEEE 802.3u 100BASE-FX IEEE 802.3u 100BA
  • Wavelength1310nm
  • Fiber CableMulti-mode Optical Fiber
  • Ports1 x Fiber Optic ST Duplex Female 1 x RJ-45 Female
  • Max Distance2 km (1.2 mi)

Type Multi Mode ST - 10/100 Mbps

  • Extend network reach up to 2 km over multi-mode fiber
  • Connect copper and fiber with 10/100 Mbps Fast Ethernet media conversion
  • Monitor link status instantly via LED indicators for Ethernet and fiber activity
  • Integrate with existing 3COM, Cisco, Lucent and Nortel network equipment
  • Operate reliably from 0 to 50 °C with included AC power adapter

Converter for 10/100 Mbps Links

The StarTech MCM110ST2 converts a 10/100 Mbps copper Ethernet link to multi-mode fibre using an ST duplex connector. It extends the connection up to 1.2 miles at 1310 nm wavelength. Network administrators use it to bridge buildings or floors where copper reach is insufficient. The unit supports full or half-duplex operation and passes IEEE 802.1q VLAN tags transparently.

Thermals Noise and Power

The converter draws 2.4 watts from the included 115 V AC adapter that supplies 12 V DC at 0.2 A. It operates silently with no moving parts in environments from 32 to 122 degrees Fahrenheit. Storage tolerance stretches from 14 to 158 degrees Fahrenheit. LED indicators show Ethernet link, fibre link, activity and far-end fault status for quick diagnostics.

Two Kilometre Multi-Mode Reach

The decisive specification is the 2 km maximum distance over multi-mode fibre. Buyers needing longer spans or single-mode fibre must choose a different converter. The ST duplex port and 10/100 Mbps rate fix the use case to legacy Fast Ethernet links. No gigabit or 10 gigabit throughput is supported.

Highlights

  • Extend network reach up to 2 km over multi-mode fiber
  • Connect copper and fiber with 10/100 Mbps Fast Ethernet media conversion
  • Monitor link status instantly via LED indicators for Ethernet and fiber activity
  • Integrate with existing 3COM, Cisco, Lucent and Nortel network equipment
  • Operate reliably from 0 to 50 °C with included AC power adapter

Specifications

BrandStarTech.com
ModelMCM110ST2
Device TypeConverter
StandardsIEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-FX
IEEE 802.3u 100BASE-TX
Wavelength1310nm
Fiber CableMulti-mode Optical Fiber
Ports1 x Fiber Optic ST Duplex Female
1 x RJ-45 Female
Max Distance2 km (1.2 mi)
Transfer Rate10/100 Mbps
LEDs1 x Ethernet Link & Activity (ON x Fiber Link ok, Blinking x Activity on Fiber Link)
1 x FEF [Far End Fault](On x Fault Detected, Off x No Fault
1 x Fiber Link & Activity (On x Fiber Link ok, Blinking x Activity on Fiber Link)
1 x Full ( Full duplex / Half duplex)
1 x Power
1 x Speed (10 or 100 Mbps)
Power AdapterCenter Tip Polarity: Positive
Input Voltage: 115V AC
Output Current: 0.2A
Output Voltage: 12 DC
Plug Type: M
Power Consumption (In Watts): 2.4
Power Source: AC Adapter Included
TemperatureOperating Temperature: 0 ~ 50 degree Celsius (32 ~ 122 degree Fahrenheit)
Storage Temperature: -10 ~ 70 degree Celsius (14 ~ 158 degree Fahrenheit)
FeatureSupports a maximum multi mode fiber optic cable distance of 2 km
Supports full or half-duplex operation
Compatible with 3COM, Cisco, Lucent and Nortel networks
Supports Link Fault Pass through (LFP)
Supports IEEE 802.3 10Base-T, 802.3u 100Base-TX and 100Base-FX industry standards
Supports IEEE 802.1q Tag VLAN pass thru
Supports Q in Q double tagged frame transparent
LED Indicators for simple Ethernet / Fiber network link monitoring
Support flow control (Pause)
Dimensions0.80" x 3.70" x 3.00"
Weight0.18 lb.
Package Contents1 x Media Converter
1 x Power Adapter
1 x Instruction Manual
Shipping weight0.28 kg
Package size180 × 155 × 74 mm

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Questions about this item

How do I connect the RJ-45 and ST duplex ports on the MCM110ST2, and what step is often missed?

Connect the RJ-45 to the copper switch and the ST duplex to multi-mode fiber; the step often missed is setting both ends to the same duplex mode — full or half — so the link negotiates correctly.

What component will need replacement first during long-term operation?

The external 115 V AC adapter rated at 12 V DC and 0.2 A is the only field-replaceable part; the converter itself has no moving parts or user-serviceable modules.

At what temperature does the MCM110ST2 hit its operating limit first?

The specified operating ceiling is 50 °C (122 °F); sustained ambient heat above this level will cause the unit to exceed its rated thermal limit before any other constraint appears.

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