4E1 PDH Fiber Multiplexer(Desktop)
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)
