Rackmount Unframed E1 Fiber Modem
Rackmount Unframed E1 Fiber Modem Advantage
· Based on self -copyright IC
· Can detect the reason of optical signal losing is that the device
power-off or transmission fiber broken, and indicate on LED
· Provide 2 impedances: 75 Ohm unbalance and 120 Ohm balance;
· After strict testing and practical verification system, completely
comply with protocol ITU-T V.35, G.703, G.704
· Have three Loop Back Mode: E1 interface Loop Back (ANA),V.35 interface Loop Back(DIG),Command the remote V.35 interface Loop Back (REM)
· Have pseudo random code test function, easily line opened, can be
used as a 2M BER Tester
· AC 90~240V, DC-48V, DC+24V, DC Power and Polarity-Free
Rackmount Unframed E1 Fiber Modem Overview
This device provides one E1 interface and one optical interface to
achieve interface conversion, rate conversion and timeslot
extraction from E1 to Optical. When unframed mode, the data channel
rate is 2.048Mbps. The device has inter-set loop test function to
facilitate the project launching and daily maintenance.
Rackmount Unframed E1 Fiber Modem Technical Indexes
Parameter | Specification |
Fiber |
Multi-mode Fiber |
Fiber Type | 50/125um, 62.5/125um |
Maximum transmission distance | 2Km @ 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 |
Fiber Type | 8/125um, 9/125um |
Maximum transmission distance | 120Km |
Transmission distance | 0~120Km @ 9 / 125um single mode fiber, attenuation (0.35dbm/km) |
Wavelength | 1310nm/1550nm |
Transmitting power | -9dBm (Min) ~-8dBm (Max) |
Receiver sensitivity | -27dBm (Min) |
Link budget | 18dBm |
E1 Interface |
Interface Standard | comply with protocol G.703 |
Interface Rate | n*64Kbps±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 |
Power |
Power supply | AC90V ~ 240V；DC –48V；DC +24V |
Power consumption | ≤10W |
Dimension |
Product size (WXDXH) | 485X138X45mm |
Packaging size (WXDXH) | 522X198X82mm |
Piece weight | 2.5KG |
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) |
Rackmount Unframed E1 Fiber Modem Application
