China wholesale 1+1 Fiber Back-Up Pdh - 4E1 PDH Fiber Multiplexer JHA-CPE4m – JHA

4E1 PDH Fiber Multiplexer JHA-CPE4m

Overview

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.

Product Photo

Front Panel

75 ohm Back Panel

120 ohm Back Panel

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)

Specifications

Application

75 ohm 4*E1 PDH

120 ohm 4*E1 PDH