4 Channel Single-Mode Fiber Industrial class Junction Box

# Key Highlights
  • Split 100G/40G to 4x25G or 4x10G
  • Single Multi-Mode Fiber (1310nm)
  • Outdoor ODVA MPO/MTP to 4xDual LC connectors
  • A side connect to 100G-QSFP28-2 or 40G-QSFP-11
  • B side connect to 25G-SFP28-10I or 10G-SFP-10I
  • IP65 Water, Dust resistant
  • Telecom Pole or Wall installation
  • Small size and light weight
  • Low Insertion Loss: ≤ 0.8 dB
  • Industrial Temperature: -45°C – +85°C
  • Fully passive (No Power Supply or Cooling)
  • Zero configuration or maintenance
  • Protocol & Data Rate neutral
  • MTBF: 100+ Years
  • 5 Year Warranty
# Pricing & Ordering


Standard recommended retail price without VAT.

Lead Time: 4-6 Weeks in EU Countries
# Quality Assurance

Because of our comprehensive Testing Program, we are confident on quality of our products. Such approach empower us to cover all our products with:

# Front Panel

MSU-S4I Front Panel

# Key Technical Data
Product Type:

Single-Mode Fiber Junction Box

Number of Data Streams:


Operating Wavelengths:

1310 nm

Insertation Loss (Passband):

0.8 dB


ODVA Connector with MPO/MTP-12 Male, ODVA Connectors with LC Adapters for use with ODVA Connectors and TIA/EIA 604-10 compliant LC UPC Connectors

Operating Temperature:

-40~+85 (°C)

Storage Temperature:

-40~+85 (°C)

Protection Class:

IP65 – Water, Dust resistant


CE, IP65, RoHS

# Product Documentation
# Product Description

  MSU-S4I is an 12-Core MPO to 4 x Double LC PSM4 (Parallel Single Mode 4-channel) Fiber Optical Junction Box. Unit has a 12-Core MPO/MTP Male connector and the unit splits MPO/MTP signal into 4x Double LC ports. Typical use case for MSU-S4I Optical Junction Box is to split 100G/40G PSM4 signal into 4x25G or 4x10G 1310nm signals, for example when using 100G-QSFP28-2 or 40G-QSFP-11 PSM4 optical modules in the main site and 25G-SFP28-10I or 10G-SFP-10I on the far end site. MSU-S4I unit is for harsh outdoor environments supporting IP65 water, dust resistance, -40 to 85C industrial temperature, telecom pole or wall installation options and comes with ODVA MPO/MTP and Double LC connectors for easy fiber connection. Unit is small in size, light in weight, is simple to install, requires zero configuration or maintenance and is fully passive – no power supply or cooling required. MSU-S4I added Insertion Loss to the connection is ≤0.8 dB.

    Typical use case for MSU-S4I Optical Junction Box is 5G/4G Mobile Fronthaul Network Baseband Unit (BBU) and Remote Radio Head (RRH) interconnection (CPRI/eCPRI protocol), Enterprise Network 100G/40G to 4x25G/10G Ethernet links or Datacenter Fiber Channel connections. For further information you are welcome to Contact Us!