SCP-O/S90
90 way telephone (optional magnet, loop, audio, EM signaling, and other data ports)
Equipment 3U high, 19 inches wide; Adopting plug-in card technology;
Provide 3 business slots, with 1 main card inserted into each slot and 1 network management slot provided;
The business slot can accommodate a 240H optical main card or a MUX30A main card;
The 240HA main card provides 1 optical interface, 4-8 E1 interfaces, and 30 business slot interfaces;
The MUX30A main card provides one E1 interface and 30 business slot interfaces;
The telephone interface includes overvoltage and lightning protection modules;
The business interface can interrupt line services, data cards, two/four wire audio interfaces, two/four wire EM interfaces
Ethernet services, hotline calling cards, magnetic calling cards, etc;
The optical interface card has a non relay transmission distance greater than 20 kilometers, with a maximum of 120 kilometers;
90 channel telephone optical transceiver fully equipped with 1 optical 240HA interface card and 2 MUX30A interface cards;
Power supply: 220V or -48V power supply;
The SCP-O/S90 90 channel telephone optical transceiver equipment is a large-scale integrated circuit developed by our company with independent intellectual property rights.
It utilizes time-division multiplexing technology to mix and encode telephone signals before transmitting them over a pair of optical fibers. Implement voice transmission services,
with transmission channels divided into optical transmission channels and voice transmission channels. The machine adopts a 19 inch, 3U frame design, with high integration, low
power consumption, reliable operation, and easy installation and use.
Optical interface
Wavelength: 1310nm (standard model) or 1550nm
Transmission power: ≥ -12dBm
Receiver sensitivity: ≤ -30dBm (BER ≤ 10-11)
Interface mode: FC (standard model) or SC, etc
Transmission method: dual fiber or single fiber
Voice interface and signaling
Exchange side
Off hook impedance:<500 Ω
Hanging impedance:>10K Ω
User side
Loop impedance: ≤ 2000 Ω (including telephone)
Idle circuit voltage ≤ 50V
Loop current: 25mA
Off hook threshold: 8mA
Polarity reversal delay:<50ms
Dialing: Pulse dialing with pulse distortion<5ms
Total distortion of in band audio dialing meets the characteristics of voice interface
Off hook latency:<100ms
Bell flow:
Remote (FXS) Ringstream Generator
Frequency: 25 Hz ± 3 Hz
Amplitude: 75V ± 5Vrms
Bell current delay<50ms
Total output power ≤ 10W (in chassis units)
Local end (FXO) bell current detection
Amplitude range: minimum 38Vrms
Voice interface
Impedance: 600 Ω or three element complex impedance, as shown in the figure
Three element complex impedance
Audio range: 300-3400 Hz
Coding Law: CCITT Recommendation G.711 A Law
power waste
Whole machine power consumption<120W (fully equipped)
work environment
Working temperature: 0-45 ℃
Relative humidity: ≤ 95% (at 25 ℃)
Atmospheric pressure: 70-106Kpa
