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Ø Integrated circuit based on independent intellectual property rights;

Ø It can be detected that when the optical signal is interrupted, it is the fault of the optical fiber line or the remote device, and is indicated by the indicator light;

Ø Support both adaptive 120Ω( balanced )and 75Ω( unbalanced )two kinds of impedance, no longer need to make settings;

Ø System through rigorous testing and practical verification, in full compliance with the ITU-T G.703, G.704 and other recommendations;

Ø Hardware to achieve the choice of any one of 31 time slots (framing effective);

Ø Provides three kinds of loopback functions: optical port local self-loop (ANA), E1 local self-loop (DIG), the command to the client E1 back to the local loopback;

Ø Provide pseudo-random code test function (PATT), equivalent to built-in bit error detector, easy to open circuit test;

Ø Optional AC 220V, DC -48V, DC +24 V, DC power supply without positive and negative points;

Optical Interface	Multimode fiber	50/125μm or 62.5/125μm, Max. transmission distance: 5KM 62.5/125μm single-mode fiber, attenuation (3dbm/km) Wavelength: 820nm Transmit power: -12dBm (Min) ~ -9dBm (Max) Receiving sensitivity: -28dBm (Min) Link budget: 16dBm
	Single-mode fiber	8/125μm, 9/125μm, Max. transmission distance : 40KM (actually need to customize for greater distance) Transmission distance: 40KM @ 9/125μm single-mode optical fiber, attenuation (0.35dbm/km) Wavelength: 1310nm Transmit power: -9dBm (Min) ~ -8dBm (Max) Receiving sensitivity: -27dBm (Min) Link budget: 18dBm
	Optical interface	FC / SC  optional
	Optical code pattern	1B1H
	Optical Module	single or dual fiber optional
	suitable for optical fiber	single mode 1310nm or multimode fiber optional
	Transmission distance	ordinary 40km (up to 120km)
E1 interface	Equipment E1 interfaces  in line with G.703 recommendations
	Rate	n * 64Kbps ± 50ppm
	Pattern	HDB3
	Impedance	Unbalanced 75 / balanced 120 (unbalanced with coaxial interface adapter, adaptable to 75-2 / 3 coaxial cable)
	Jitter characteristics	to meet the G.742, G.823 recommendations
	Input port allows attenuation	0 ~ 6dBm
Working environment	Working temperature	10°C ~ 50°C
	Storage temperature	-40°C ~ 80°C
	Relative Humidity	5%~95% (non-condensing)
Power	Voltage	AC180~260V   DC-48V  DC+24V
	Power consumption	≤ 5W
Dimension	210mm*120mm*30mm

Dimension

210mm*120mm*30mm

FE1 Fiber Optical Modem.doc