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1-5 E1 switching protection
Provide 1-5 independent E1 switching protection functions. When the main E1 line fails, the equipment will automatically switch to the backup E1 line
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 1-5 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, LOF, or CRC4 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. support dual power backup function;
◆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.
◆The device with a relay inside loses power and supports direct communication between the business and the main E1 function;
◆When LOS, AIS, LOF, or CRC4 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. support dual power backup function;
◆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
Equipment interface: The equipment interface complies with G.703 recommendation
Speed: 2048Kb/s ± 50ppm
Code type: HDB3
Impedance: Unbalanced 75 Ω (Unbalanced with coaxial interface adapter, compatible with 75-2/3 coaxial cable)
Jitter characteristics: meet the recommendations of G.742 and G.823
Allowable attenuation of input port: 0-6dBm;
◆ Power requirements
System power supply: AC180V~260V; DC –48V； DC +24V
Power consumption: ≤ 10W
◆ Size and dimensions
19 inches: 483 (width) X138 (depth) X44.5 (height) mm
◆environmental indicators
Working temperature: -10 ℃ -+60 ℃
Storage temperature: -40 ℃ -+85 ℃
Working humidity: 0% -95% (no condensation)
MTBF:>100000 hours
Application Solution
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