2-channel E1 switching device

NegotiableUpdate on 11/24

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Provide 2 independent E1 switching protection functions, with relay devices inside the equipment for power failure, supporting direct connection between business and main E1, and the option to configure the backup E1 line without sending HDB3 code when the main E1 line is working.

Product Details

Product description

This series of equipment is an E1 switch developed based on our company's specialized ultra large scale integrated circuit. Provide 2 independent E1 switching protection functions. In the default working mode, when the main E1 line fails, the equipment will automatically switch to the backup E1 line for transmission without damage; After the main E1 line is repaired properly, the equipment automatically switches back to the main E1 line transmission without any damage, and works fully automatically without the need for manual monitoring and operation; Applied to telephone conferences, video conferences, and video surveillance system protection.

Features

◆Integrated circuits based on independent intellectual property rights;

◆The device with a relay inside loses power and supports direct communication between the business and the main E1 function;

◆When LOS, AIS, or LOF alarms occur on the E1 line currently being transmitted, the system switches to another E1 line without damage;

◆When the E1 line is in PCM framing mode, it can be switched based on CRC4 error code;

◆You can choose to configure the backup E1 line to not send HDB3 codes when the main E1 line is working;

◆Multiple power supply options available: AC220V, DC-48V/DC24V, etc;

◆The DC-48V/DC24V power supply has automatic polarity detection function, and there is no need to distinguish between positive and negative poles during installation.

Technical Specifications

◆ E1 interface

All 16 E1 interfaces of the device comply with G.703 recommendation

Speed: 2048Kb/s ± 50ppm

Code type: HDB3

Impedance: Unbalanced 75W/Balanced 120W

Unbalanced coaxial interface adapter, compatible with 75-2/3 coaxial cables

Jitter characteristics: meet the recommendations of G.742 and G.823

Input port allows attenuation: 0-6dBm

◆ Environmental indicators

Working temperature: -10 ℃ -+50 ℃

Storage temperature: -40 ℃ -+85 ℃