8E1 PDH Fiber Multiplexer

This device provides 8 channel E1 interface and a standard 2-wire telephone as an engineering order-wire (optional). It has a comprehensive alarm function, stable and reliable operation, low power consumption, high integration, and small size.

● This device features a modular wide dynamic range optical detector.

● E1 interface complies with G.703, and adopts fully digital clock recovery and smooth phase-locked loop technology.

● It is able to detect power outage or fiber break at the opposite end when the optical signal is lost, and indicate the alarm through LED lights.

● It has a function to display the working status of the remote device at the local end.

● A remote interface loopback function is provided on this device for line maintenance.

● The transmission distance is up to 2-120Km without a relay.

● AC 220V, DC-48V, DC+24V can be optional,

● Fiber

Fiber Port: 1

Fiber: Single/Dual fiber

Fiber Connector: FC/SC/ST/LC (SFP)

Wavelength: 850nm/1310nm (multi-mode); 1310nm/1550nm (single-mode)

Transmission distance without relay: 20~120Km

Typical transmit power:

Single-mode 1310/1550nm: ≥-9dBm

Multi-mode 850nm: -18dBm

Multi-mode 1310nm: -25dBm

Receiver sensitivity range: -28dBm ~ -40dBm

● E1 Interface

Interface Standard: Comply with protocol G.703;

Rate: 2048Kbps±50ppm;

Line Code: HDB3;

E1 Impedance: 75Ω (unbalance), 120Ω (balance);

Jitter Performance: Comply with ITU-T G.742 and G.823 recommendations.

Input 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)