The HJ-A2020 series integrated access device adopts internationally advanced integrated circuits, programmable logic circuits, and high-speed microprocessor design. It integrates optical transmission, PCM multiplexing, and time slot cross-connection technologies, using cross-connection technology to achieve dynamic allocation of time slot resources, thereby improving the utilization of line resources.
Modular card design provides 6 universal service slots, allowing arbitrary configuration of various functional service cards according to user needs. Service selection is very flexible.
The transmission medium is E1 channels (single E1/4 E1 bundling) or optical fiber channels.
The standard capacity is ≤48 lines. It provides a high-quality, economical, and reliable solution for medium and small capacity access.
1. All interface technical parameters comply with relevant international or domestic standards;
2. Resources; voice aggregation function; 48 telephone lines aggregated into 1 E1 transmission, greatly saving lines;
3. Optical access, single frame realizes 48 telephone lines, using stacking method;
4. Supports dual optical path 1+1 protection;
5. /E&M/ 6 general service slots, configured with FXO/FXS/magnetic 4-wire audio/E1/Ethernet/RS232/RS422/RS485 according to user needs;
6. Configuration; 1 to 2 physically isolated Ethernet interfaces, bandwidth according to user requirements (dynamic/static);
7. Compatible with HJ-A2030 board, reducing the number of spare parts for users;
8. Supports hot-swapping function, with surge and three-level lightning protection;
9. Strong anti-interference ability, stable performance, complete functions;
10. Modular power design; dual power supply modes of AC220V and DC-48V;
11. Comprehensive network management functions, real-time monitoring of various device operating statuses;
12. 19-inch 2U aluminum profile chassis.
