Guangzhou Framenet Telecom Technology Co., Ltd.

China Manufacturer with main products: Msap, Fiber Media Converter, Optical Transceiver, Video Optical Transmitter/Receiver, Pdh/Sdh Multiplexer, Optical Fiber Modem, e1 Protection...

Home >Products Catalog > E1 Circuit Protection Switching Device > 8 Channel Digital Circuit Protection Switching Device

8 Channel Digital Circuit Protection Switching Device

FOB Price:	10.00 - 1000.00 USD/Set
Supply Ability:	1,000 Set/Sets per Month
Shipping:	7 days after payment
Payment Terms:	T/T(Bank Transfer), Western Union, PayPal

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Product Details

Place of Origin:	Guangdong in China
Packaging Details:	1 pc in a box

Specifications

Introduction:

SVP821 Digital Circuit Switching Device is a kind of circuit protection device, adopting Application Specific Integrated Circuit which is developed by Framenet Telecom. This series of device consists of Extra Large Scale Integrated Circuit as the core to achieve 8 groups 2M digital circuit protection switching function; Apply to mobile base station, important digital circuit dedicated line back-up and program-control switching digital relay protection.

Main Feature:

System total capacity: 8 groups of E1

Support maximum 8 channels E1 service path protection;

Intellect Switching Mode

Auto Switching Mode: switching condition— E1 loss of signal (LOS), E1 path opposite end alarm (AIS), E1 path loss of frame. When any one of the above status occurs on the main circuit, the device will automatically switch to back-up circuit transmission; when the main circuit return to normal, the device will automatically switch to main circuit transmission. (A circuit is main transmission port, B circuit is back-up transmission port, and C circuit is service port. )

Force Switching Mode: can force to switch to main A or back-up B circuit transmission (only need to play button or set network management).

E1 direct connection after power failure function: among 8 groups E1 paths, each E1 path A/C path will achieve direct connection protection under power failure.

Provide 1* RS232 asynchronous data interface;

Provide 1 management interface, can achieve centralized monitoring, support remote and local loop-back function, and support local device power failure alarm function & system upgrading.

Adopting large scale chip, simple circuit, low power consumption, high reliability;

Adapt to various power supply environment: -48VDC, +24VDC or 220VAC;

Standard 19” 1U chassis, small size, light weight, stable and reliable working, easy to install.

Technical Parameter:

E1 Interface Electrical Specification
Nominal Speed Rate: 2048Kbps, Tolerance ± 50ppm

Code Type: HDB₃

Interface Impedance: 75Ω (unbalanced)or 120Ω (balanced)is optional

Digital Interface Electrical Specification: Comply with ITU-TG. 703 propose, Pulse waveform comply with sample as Pictue8. 1

Jitter Characteristic: Comply with ITU-TG. 823 propose

Input Jitter Tolerance: Comply with ITU-TG. 823 propose

Output Jitter: Comply with ITU-TG. 823 propose

Level: ± 2. 37V± 10% or ± 3. 00V± 10%

Interface Connector is: BNC Coaxial Mount or RJ-45 Crystal Head

Management Interface

ConnectingType: RS-232

Interface Level: RS-232 level

Interface Connector: RJ-45

Management Interface Baud Rate: 57600bit/s

Power Supply

DC Power Supply Voltage: -48VDC, Tolerance Range: -24V~-72V, Power Supply Ripple: ≤ 240mVp-p

DC Power Supply Voltage: +24VDC, Tolerance Range: +20V~+28V, Power Supply Ripple: ≤ 240mVp-p

AC Power Supply Voltage: 220VAC, Tolerance Range: 170V~270V

Power Consumption: ≤ 10W

Working Environment

Environment Temperature: 0℃~60℃

Relative Humidity: ≤ 90%(35℃)

Atmospheric Pressure: 86-106Kpa

Dimension

483× 270× 45 mm(Standard 19” 1U)

Service Process

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