4E1/T1 +3x FE Fibre Multiplexer





  • 4x E1 + Fast Ethernet  fibre PDH multiplexer.
  • Allows the flexible use of Multimode or Single mode lines and enables support for different wavelengths and distances.
  • Optional AC and DC power supplies for redundant operation.
  • Supports Digital Diagnostics Monitoring Interface (DDMI)


The FMUX04E is a fixed platform for 4x E1 + Fast Ethernet multi-service over fibre PDH multiplexer. It provides transparent E1 transmission and 100Mbps Fast Ethernet simultaneously. The fibre optic line is based on SFP technology which allows for the use of Multimode or Single mode fibre and enables support for different wavelengths and distances. Bi-directional SFPs may also be used to maximize the utilization of fibre optic lines and reduce line costs. The multiplexer can be equipped with optional AC and DC power supplies for redundant operation. With SNMP  and Web-based management in the FMUX04E the administrator can monitor, configure, and control the activity remotely.

FMUX E1 over fibre

Data Sheet


Item Description

Framing: Unframed (transparent)
Bit Rate: E1:2.048 Mb/s , T1: 1.544Mb/s
Line Code: E1:AMI/HDB3, T1: AMI/B8ZS
Line Impedance:
E1: Unbalanced 75 ohms (BNC)
E1: Balanced 120 ohms (RJ-45)
T1: Balanced 120 ohms (RJ-45)
Receiver sensitivity: Short haul
Jitter Performance: According to ITU-T G.823
Standard: ITU-T G.644, G.703, G.704, G.706 and G.732
Interface Connectors: RJ-45, BNC
Test Loops: LLB (Local Loop Back)
RLB (Remote Loop Back)
RRLB (Request Remote Loop Back)

Optical Interface

Bandwidth in optical Line: 155 Mbps
Optical Connector: LC (SFP module)
Distance: 20/40/80 Km
Optical Wavelength:
1310nm, 1550nm,
WDM Tx1310/Rx1550nm (Type A),
WDM Tx1550/Rx1310nm (Type B)


Interface Type: 10/100Base-TX
Connector: 3x RJ-45
Standard: IEEE 802.3, 802.3u
Duplex modes: full/half


FX1 Link, FX2 link , E1/T1 Mode/Link/Loopback test,
Order wire phone indicator , LAN Link/Speed

Power Input

AC : 100~240VAC, DC : 18-75 VDC


248 x 215 x 43mm (D x W x H)


0 ~ 50°C (Operating)


-10 ~ 20°C (Storage)


10 ~ 90% non-condensing


CE, FCC, RoHS compliant


75,000 hrs

Ordering Information

Order Code Description
CT-FMUX04E-AC Standalone FOM with built-in AC Power. Optional SNMP
CT-FMUX04E-DC Standalone FOM with built-in DC Power. Optional SNMP
CT-FMUX04E-AD Standalone FOM with built-in (AC+DC) Power. Optional SNMP
CT-FMUX04E-SNMP SNMP management card, provides web, telnet, SNMP

More Information