Fiber Optic Multimode to
Single Mode Converter

 Converts Multimode to Single Mode fiber  and Single Mode to Multi mode fiber
will do DS3 conversion and a Five year warranty optional VDC power 12, 24, 48 125VDC
Two-way Single Fiber Communication (optional)

The TC3005 "MAXI" Multi-mode-to-Single-Mode Fiber Optic Converter converts multimode formats to single mode formats, or vice versa, for data transmission up to 200 Mbps.

"MAXI" Fiber Optic Mode Converter/Repeater
(Model TC3005)

  • Converts Single Mode to Multimode
  • Converts Multimode to Single Mode
  • Five year warranty
  • Data Rates up to 200 Mbps
  • Distances up to 100km
  • Local & Remote Loop-back 
  • Local Dry Contact Alarm Relay
  • Test Signal Generator
  • 8 Diagnostic LED Indicators
  • Built-In Audible Alarm Buzzer
  • Built-In Redundant Power Supply
  • Standalone or Rack-mount (Interchangeable)
  • Two-way Single Fiber Communication
    (optional see model
    Model TC3007)

TC3005S Standalone Unit

3 X TC3005R (Housed in TCRM192)

see other converters

The TC3005 "MAXI" Multimode-to-Single Mode Fiber Optic Converter converts multimode formats to single mode formats, or vice versa. Transmission distances to more than 100km are possible with the Laser 1550nm option (34dB loss budget). The MAXI will convert or repeat all popular wavelengths 850/1300nm Multimode or 1300/155nm Single Mode. It is compatible with all popular communication technologies including Ethernet, Token Ring, TAXI, OC1/OC3, ATM, FDDI and SONET. The MAXI provides users with several key features including Local & Remote Loop-back, a Test Signal Generator, Dry Contact Relay Alarm, Audible Alarm Buzzer, Power Redundancy, and standalone or rack-

The Test Signal Generator and Dry Contact Alarm are particularly beneficial. The Signal Generator (160 Mbps) helps technicians conduct various installation tests including fiber link verifications. The Dry Contact Alarm Relay, which includes an audible alarm buzzer, identifies Optical Signal Loss on either the multimode or single mode ends.

Power redundancy is load sharing and switches over automatically in the event of a failure. Power can be either 12VDC (standard), 24VDC, -48VDC, or 115/230VAC with an external power cube. Standalone versions are modular, i.e. used either in a standalone case or in a rack-mount  assembly. Standard connectors are ST or FC type.

Four DIP switches and eight LED indicators are provided to help installation and troubleshooting. A hardened temperature version (-20o to 70oC), Model TC3005T, is also available.


The MAXI Mode Converter is used to convert multimode to single mode, or vice versa, in a variety of LAN and Telephony communication environments including PABX, Ethernet, Token Ring, FDDI, ATM & SONET (OC1 & OC3).  This conversion is done to cross-connect different fiber types, regenerate optical signals and/or extend transmission distances.

see manual

Technical Specifications    

Data Rates
Up to 200 Mbps
Transmitter ELED, ELED, LASER*
Receiver PIN Diode
Wavelength 850nm, 1300nm Multimode
1300nm, 1550nm Single Mode
Fiber Optic Connectors ST, FC or SC
Loss Budgets*
LED Multimode @ 850/1300nm: 16dB
ELED Single Mode @ 1300nm: 16dB
LASER Single Mode @ 1300nm: 25dB
High Power LASER Single Mode @ 1300/1550nm: 34dB
Bit Error Rate 1 in 1010 or better

* Contact us for higher requirements
Visual Indicators
System PWR A, PWR B, VccA, VccB
Optical Signal Status MM RX, MM TX, SM RX, SM TX
Dry Contact Normal Open
Standard 12VDC @ 700mA (max)
Optional 24VDC, -48VDC, 125VDC
or 115/230VAC (with external power cube)
Operating -10 to 50C
Hi-Temp (optional) -20 to 70C
Storage -40 to 90C
Humidity 95% non-condensing
Physical (Standalone/Wallmount Unit)
Height (3.53 cm) 1.4"
Width (18.14 cm) 7.1"
Depth (16.57 cm) 6.5"
Weight (512 gm) 1.5 lbs.


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