The unframed
The unframed E1 to fiber converter provides one E1 interface and one optical interface, enabling interface conversion between E1 and optical signals.
In unframed mode, users can utilize a data channel speed of 2.048Mbps. The device has a built-in loopback testing feature, facilitating engineering provisioning and routine maintenance.
● The E1 to fiber converter simultaneously supports adaptive 120Ω/balanced and 75Ω/unbalanced impedance, eliminating the need for manual configuration.
● The system has undergone rigorous testing and practical validation, fully complying with ITU-T recommendations such as G.703 and G.704.
● 3 loopback functions: optical loopback, E1 local loopback, and remote E1 loopback.
● Peudo-random code testing function (PATT), equivalent to a built-in error detector, facilitating line provisioning testing.
● Optional power supply options include AC 220V, DC -48V, and DC +24V, with no polarity distinction for DC power supply.
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Function Description |
Unframed E1 Fiber Modem, Provide 1* 2048K E1 transmission in optical fibers |
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Port Description |
1 Fiber interface; 1 E1 Interface |
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Power |
Power supply: AC180V ~ 260V; DC –48V; DC +24V Power consumption: ≤5W |
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Dimension |
216X140X31mm (WXDXH) |
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Weight |
1.2KG |
Fiber: single/dual fiber
Fiber Interfaces: FC/SC/ST/LC (SFP)
Wavelength: 850nm/1310nm (Multi-mode); 1310nm/1550nm (Single-mode)
Non-relay Transmission Distance: 20-120km
Typical Transmit Power:
Single-mode 1310/1550nm: ≥-9dBm
Multi-mode 850nm: -18dBm
Multi-mode 1310nm: -25dBm
Receive Sensitivity Range: -28dBm to -40dBm
Standard: Comply with protocol G.703
Rate: n*64Kbps±50ppm
Line Code: HDB3
Impedance: Unbalanced 75Ω/Balanced 120Ω
Jitter Characteristics: Comply with G.742 and G.823 recommendations
Input Attenuation Range: 0~6dBm
Working temperature: -10°C ~ 50°C
Working Humidity: 5%~95 % (no condensation)
Storage temperature: -40°C ~ 80°C
Storage Humidity: 5%~95 % (no condensation)
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