SC2P-16G4F4O/S32
16 E1+4 Gigabit Ethernet ports+4 100Mbps Ethernet ports+32 dual optical telephone ports
2 1.25G optical interfaces, with 1+1 protection implemented for the optical interfaces;
4-channel 10/100/1000M adaptive Ethernet ports, supporting logical isolation, full duplex/half duplex adaptive;
4-channel 10/100M adaptive Ethernet ports, supporting logical isolation, full duplex/half duplex adaptive;
16 E1 service ports, fully digital clock recovery and smooth phase-locked technology;
8 business slots (each card provides four business channels);
The user interface can be plugged into regular telephones, magnet telephones, hotline telephones, V35 services, RS232/RS422/RS485 data services
Two/four wire audio interface, two/four wire EM interface, Ethernet service;
The power supply is DC-48V, DC+24V, DC-24V, AC 220V, etc;
Provide comprehensive local/peer alarm monitoring;
The transmission distance without relay is greater than 20 kilometers, with a maximum of 120 kilometers.
SCT2P-16G4F4O/S32 dual optical port protection integrated service optical access equipment is a large-scale integrated circuit developed by our company with independent
intellectual property rights. It applies time-division multiplexing technology to mix and encode Ethernet signals and E1 signals before transmitting them over a pair of optical fibers.
Realize mixed transmission of 100Mbps Ethernet, Gigabit Ethernet, E1 interface, regular telephone, hotline telephone, magnet telephone, V35 service, RS232/RS485/RS422 data service,
2/4 audio, 2/4 wire EM, etc., with optical transmission channel as the transmission channel. The machine adopts a 19 inch, 1U frame design, with high integration, small size, low
power consumption, reliable operation, and easy installation and use.
Technical indicators
1: Optical interface (1.25G)
Wavelength: 1310nm (standard model) or 1550nm
Transmission power: ≥ -12dBm; Receiver sensitivity: ≤ -30dBm (BER ≤ 10-11)
Interface method: LC; Transmission method: dual fiber or single fiber
2: E1 interface
The device has 16 E1 interfaces, which comply with G.703 recommendation
Speed: 2048Kb/s ± 50ppm
Code type: HDB3; Impedance: 75 Ω (unbalanced) or 120 Ω (balanced)
Jitter: in accordance with G.742 G.823 recommendations; Input port allows attenuation: 0-6dB
3: Ethernet interface
Supports line speeds of 10Base-T/100Base-T/1000Base-T, full duplex/half duplex adaptive
Support line speed 10Base-T/100Base-T, full duplex/half duplex adaptive
Compliant with IEEE802.3/IEEE802.3u standards
Use standard RJ45 plug
4: Data interface (including RS232, RS485, RS422 interfaces)
The data interface rate is 300-19.2Kbit/s, with adaptive baud rate and DCE mode
5: V.35 interface characteristics
Nominal speed: N * 64K/s (N ≤ 32)
Working mode: DCE, DTE optional
6: 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
7: Two/four wire audio interface
Level of 2-wire interface: 0dBr for 2-wire transmission and 3.5dBr for 2-wire reception
Four wire interface level: 0dBr for four wire transmission and 0dBr for four wire reception
Return loss: 300-600 Hz>12dB 600-3400 Hz>15dB
Frequency response: 300-3400 Hz (+0.5, -0.5dB)
Space noise: ≤ -65dBm0p
Gain: -45 dBm0-+3 dBm0 (+0.5, -0.5dB)
Total signal-to-noise ratio: compliant with ITU G.713 template as shown in the figure
The relationship between signal/total distortion and input level for analog (four to four or two to two) channels
Specification for two/four wire interfaces:
Compression ratio: A law in ITU G.711
Impedance: Balanced 600 Ω
Audio range: 300Hz-3400Hz
Return loss: not less than 18Db
8: Power consumption
The overall power consumption is less than 35W
9: Working environment
Working temperature: 0-45 ℃
Relative humidity: ≤ 95% (at 25 ℃)
Atmospheric pressure: 70-106Kpa
