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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: FCTEL
  • Model Number: FC-OP4
  • Name: 4e1 pdh multiplexer , fiber to 4e1 mux
  • wavelength: 1310/1550nm
  • connector: SC,FC
  • E1: 75ohm(BNC) or 120ohm(RJ45)
  • Ethernet: Fast speed 10/100/1000Mbps,rj45
  • data: rs232,rs422,rs485
  • transmission distance: 20km,40km,60km,80km,100km
  • managed: console,snmp,web,telnet
  • Power: AC220v,DC48V
  • size: 19"inch

Packaging & Delivery

Packaging Details Name : 4e1 pdh multiplexer
package : standard export carton package
Delivery Time 3days


High quality 4E1 over fiber modem , 4E1 pdh multiplexer



FC-OP4 provide 1~4 E1 over one multi-mode or single-mode optical fiber.For high speed and secure of telecommunication, we developped multi-service series,can be customized gigabit Ethernet,series data (rs232-422-485),EM2/4wire audio,1+1 optic fiber protection,hot-line service,snmp.1u or 4/6u rack .These fiber optic transmitter and fiber optic receiver are typical used in point to point applications with Access control system, communication center interconnect,Intelligent transportation system(ITS),Highway and Free data transmission.


FC-OP4 is 4e1 fiber converter with FXS to FXS hotline service , 75ohm BNC connector , single core fiber  and AC+DC power ,19inch rack . 



  1. provide 4E1 over fiber , 75ohm or 120ohm 
  2. E1 interface comply with G.703, adopts digital clock recovery and smooth phase-lock technology
  3. 1Channel PCM digital business phone ,FXS to FXS hotline service
  4. Two fiber two direction and single fiber two direction , provide the 1+1 fiber back up
  5. When optical lose signal, it can detect the remote device is power off or fiber is disconnected, and indicates alarm by LED
  6. The local device can view the remote device working condition
  7. Provide command the remote interface Loop Back, ease line maintenance
  8. The transmission distance is up to 2-120Km without interruption
  9. AC 220V, DC-48V, DC24V ,optional power 1+1 redundancy to ensure stable system
  10. Optical optional by customer's requirement

Technical Parameters


Optical portMulti-mode50/125um,62.5/125um
Max transmission distance:5KM 62.5/125um single mode fiber,attenuation(3dbm/km)
Wave length:820nm
Transmitting power:-12dBm(Min)-9dB(Max)
Receiver sensitiveity:-28dBm(Min)
Link budget:16dBm
single-mode8/125um, 9/125um
Maximum transmission distance: 40Km
Transmission distance: 40KM@9/125um
Wave Length: 1310nm
Transmitting power: -9dBm (Min) ~-8dBm (Max)
Receiver sensitivity: -27dBm (Min)
Link budget: 18dBm
E1interface (10M/100M)Interface Standard:Comply with protocol G.703
Interface rate:n*64Kbps±50ppm;Interface Code:  HDB3;
E1 Impedance:  75Ω (unbalance), 120Ω (balance);
Jitter tolerance:  In accord with protocol G.742 and G.823
Allowed Attenuation:   0~6dBm
Ethernet interfaceInterface rate:10/100 Mbps,half/full duplex auto-negotiation
Interface standard:Compatible with Ieee802.3,IEEE802.1Q9(VLAN)
MAC Address Capability:4096
Connector:RJ45,support Auto-MDIX
FXS portRing voltage:75V
Ring frequency:25HZ
Two-line impedance:600 ohm(pick up)
Return loss:40dB
FXO Switch portRing voltage:35V
Ring frequency:17HZ-60HZ
Two-line impedance:600 ohm(pick up)
Return loss:40dB
EM 2/4 LineAD:odB
Two/Four-line impedance:600 ohm
Return loss:20dB
Powerpower supply:AC180V-260v;DC-48V;DC+24V
Dimensionproduct size:19inch 1U 485X138X44mm(WXDXH)
Simple packaging :522X198X82mm(WXDXH)
Piece Weight :2.5 KG 
Working environmentworking temperature:-10°C ~ 50°C
Working Humidity:5%~95 % (no condensation)
Storage temperature:-40°C ~ 80°C
Storage Humidity:5%~95 % (no condensation)


Networking Application:




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China (Mainland) | Manufacturer, Trading Company
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