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32Voice+4E1+4FE(physical isolation)+4RS232 Fiber Multiplexer

View : 254
Type : multi service over fiber mux
Description :

This device provides 32-channel telephone, 4-channel E1 interface, 4-channel physically isolated Fast Ethernet interface (independent bandwidth per line speed 100M), and 4 expansion interfaces.


This device provides 32 channel telephone,  4 channel E1 interfaces, 4 channel physically isolated Fast Ethernet interfaces (independent bandwidth per line speed 100M), and 4 expansion interfaces. 4 Ethernet interfaces are switch interfaces that can support VLAN. 4 expansion interface can be used as the transmission channel of RS232/RS485/RS422 asynchronous data, voice signal, 2/4 line E&M audio signal, switch signal, and Ethernet signal (Bandwidth 2M). SNMP or Console Management is optional, and it is very flexible.


32-channel fiber optical telephone converter with 4fe 32-channel fiber optical telephone converter with 4fe


Based on self-copyright IC

E1 interface complies with G.703, adopts digital clock recovery and smooth phase-lock technology Voice port supports FXO and FXS port,

Support FXO/FXS, EM2/4 audio, Magnet Telephone Interface, FXO port docking with program-controlled switchboard, FXS port connected to the user’s telephone;

1~32channel Voice access, supports caller ID feature and reverse polarity billing functions

Support various sites’ mutual number allocation function

It provide 4 expansion interface, you can extend 1~4Channel asynchronous data, such as RS232/RS485/RS422/Manchester code;1~4Channel voice, 1~8Channel switch or two/four line audio and so on

Ethernet 10/100M, full/half duplex fully adaptive, independent bandwidth per line speed 100M, the total bandwidth can be bidirectional 4 * 100M;

Ethernet interface can support AUTO-MDIX (crossed line and straightly connected line self-adaptable)

Telephone interface with lightning protection, lightning reached IEC61000-4-5 Short circuit current wave 8/20μs,the peak output voltage 6KV open standards

The transmission distance is up to 2-120Km without interruption

AC 220V, DC-48V, DC24V can be optional


● Fiber

Multi-mode Fiber

50/125um, 62.5/125um,

Maximum transmission distance: 5Km @ 62.5/125um single mode fiber,attenuation (3dbm/km)

Wave Length: 820nm

Transmitting power: -12dBm (Min) ~-9dBm (Max)

Receiver sensitivity: -28dBm (Min)

Link budget: 16dBm

Single-mode Fiber

8/125um, 9/125um

Maximum transmission distance: 40Km

Transmission distance: 40Km @ 9 / 125um single mode fiber, attenuation (0.35dbm/km)

Wave Length: 1310nm

Transmitting power: -9dBm (Min) ~-8dBm (Max)

Receiver sensitivity: -27dBm (Min)

Link budget: 18dBm


  • E1 Interface

  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 Interface(10/100M)

Interface rate: 10/100 Mbps, half/full duplex auto-negotiation

Interface Standard: Compatible with IEEE 802.3, IEEE 802.1Q (VLAN)

MAC Address Capability: 4096

Connector: RJ45, support Auto-MDIX


FXS Phone Interface

Ring voltage: 75V

Ring frequency: 25HZ

Two-line Impedance: 600 Ohm (pick up)

Return loss: 40dB


FXO Switch Interface

Ring detect voltage: 35V

Ring detection frequency: 17HZ-60HZ

Two-line Impedance: 600 Ohm (pick up)

Return loss: 40 dB


EM 2/4 Line

AD: 0dB

DA: -3.5dB

Two/Four-line Impedance: 600 Ohm

Return loss: 20 dB


Working Environment

Working temperature: -10°C ~ 50°C

Working Humidity: 5%~95 % (no condensation)

Storage temperature: -40°C ~ 80°C

Storage Humidity: 5%~95 % (no condensation)




Functional Description

32 * telephone,4E1,4 * Ethernet physical isolation(Total Bandwidth 400M),Console or SNMP,Support 6U rackmount,One or Two Fiber interface,4*RS232/422/485


Power supply: AC180V ~ 260V;DC –48V;DC +24V

Power consumption: ≤10W


485X138X45mm(WXDXH) 19 1U




application of 32-channel fiber optical telephone converter with 4fe

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