The HC-A DDF digital distribution frame is installed in machine rooms as a distribution center between multiplex digital equipment or between digital multiplex equipment and program controlled exchange devices. The transmission impedance of the frame is 75Ω, while the transmission rate is below 155Mbit/s. The distribution unit provides dispatching, transferring, monitoring, and other functions for digital signals of the circuit group installation.
1. Working speed: 2~155Mbit/s
2. Transmission impedance: 75Ω
3. Crosstalk ratio: ≥70db(50khz～233mhz)
4. Insertion loss: ≤0.3db(50khz～233mhz)
5. Return loss: ≥18db(50khz～233mhz)
6. Contact resistance of the coaxial connector:
Outer conductor: ≤2.5mΩ
Increment after the mechanical endurance test: ≤2.5mΩ
Inter conductor: ≤10mΩ
Increment after the mechanical endurance test: ≤10mΩ
7. Insulation resistance: ≥1000MΩ (500VDC)
8. Pull-out force: ≥50N
|Model||Outline size (height × width × depth)||Equipped module unit number||Capacity (system)|
1. The digital distribution frame is a modular structure with flexible configuration and installation options.
2. The frame is made of aluminum alloy profile or high quality cold rolled steel plate, with the surface treated by electrostatic spray.
3. The distribution frame is a semi-open structure, inside there is spacious wiring space, so that the cabling lines are clear and easy to handle.
4. Fast wiring installation
5. With gold plated coaxial connector, the contact resistance is low and the connection is reliable.
6. The digital distribution frames can be installed side by side, and the left and right between the frames are equipped with a coil line.
7. Two frames can be installed back to back and adjusted front and back.
8. With test port, it can be tested online, for convenient and flexible monitoring and maintenance.
9. HC-M106A1 uses new high density unit body with capacity twice that of the HC-M106A.
Hengchang is a leading networking equipment manufacturer since 1994, besides the DDF digital distribution frame, we are offering products like cable distribution cabinet, server rack, cable and wire management system, etc. We have extensive experience in making data communication and network equipment, always provide quality distribution frame for global customers.