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34 way E1 switching device (4U)
The 4U 17 slot dual power shelf plug-in card can support up to 34 E1 switching functions (a total of 102 E1)
Product details
Product description
This series of equipment is a 4U 17 slot dual power frame plug-in card developed on the basis of our company's dedicated ultra large scale integrated circuit. It can support up to 34 E1 switches (a total of 102 E1 switches). Each card provides 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;
◆The 4U 17 slot dual power shelf plug-in card can support up to 34 E1 switching functions (a total of 102 E1);
◆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 ℃
Working humidity: 0% -95% (no condensation)
MTBF:>100000 hours
Application Solution
Application scheme diagram of frame type E1 switching equipment
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