Optical Equipment

4E1 Multiplexer

4E1+100M PDH Multiplexer

4E1 PDH Multiplexer can multiplex 4 E1 and 2 optional port Ethernet (10/100Mbps line speed) signals in one fiber channel to transmit. It is suitable for low capacity, point-to-point application of remote transmission. The circuit part of the equipment is fully digitized. The whole equipment is reliable, stable, easy to install and maintain. It has good temperature and voltage characteristics, complete alarm functions, one RS232 asynchronous interface and remote loop back functions(from software). At the same time, it can be managed from management software Fi-View-MP

Product Datasheet
Resources (firmware, documents etc...)


  • Provide up to 4E1 channels and 2 optional port 10/100Mbps Ethernet channel
  • Fiber port bit rate: 150Mbps, up to 120Km distance without repeater
  • E1 Line code: HDB3, compliant to G.703, G.823 and G.742.
  • E1 channel support both 75ohm & 120ohm impedance
  • Ethernet port support 10/100Mbps auto-detection, Full/Half Duplex auto-negotiation
  • Ethernet port can transmit VLAN tag
  • Complete alarm functions
  • Provide an RS232 asynchronous interface
  • Support the local/remote E1 loop back
  • Remote loop back provided by software and hardware
  • Provide RS232 port for management, GUI interface
  • Stand alone,220VAC or -48VDC power supply optional


Optical Port

  • Port number: 1
  • Bit rate: 150Mb/s+/-50ppm
  • Wavelength: 1310nm, 1550nm
  • Distance: 0 - 120Km
  • Connector: FC/PC

E1 Port

  • Port number: 4
  • Bit rate: 2.048Mbps(+/-100ppm)
  • Impedance: 75ohm or 120ohm
  • Line Code: HDB3, compliance with ITU-T G.703

Ethernet Port

  • Port number: 2 optional
  • Speed: 10/100Mbps line speed
  • Duplex: Half/Full auto-negotiate
  • Frame Size: 64 - 1536 bytes
  • MAC address: 1k
  • MAC aging time: 5mins

Power Supply

  • Input voltage: When -48V, -40V~ -60V (DC) is allowed & When ~220V, -175V ~ ~264V (AC) is allowed.
  • Overall power: 5W

Operating Environment

  • Temperature: 0°C--45°C
  • Humidity: 95% no condense
  • Standalone Size: 483mm(L)×44.45mm(W)×200mm(H)
  • Weight: 2kg