4E1 PDH Fiber Multiplexer(Desktop)

Short Description:

This device provides 1-4* E1 interface , Standard 2 wire telephone as engineering order-wire (optional). It is very flexible. It has alarm function. The work is reliable, stable, and low power consumption, high integration, small size.


Overview

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Features
*Based on self -copyright IC
*Modular wide dynamic optical detector
*Uses standard 2 wire telephone (non-telephone handles) set as engineering order-wire hotline(optional)
*E1 interface comply with G.703, adopts digital clock recovery and smooth phase-lock technology
*When optical signal lost, it can detect the remote device is power off or fiber is disconnected, and indicates alarm by LED
*The local device can view the remote device working condition
*Provide command the remote interface Loop Back, ease line maintenance
*The transmission distance is up to 2-120Km without interruption
*AC 220V, DC-48V, DC+24V can be optional
*DC-48V/DC+24V power supply with automatic polarity detection function, when installed without distinction between positive and negative

 

Parameters

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: 2048Kbps±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

*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)


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