HJ-iAN220 Intelligent Access Platform MSAP is a multi-service SDH (Synchronous Digital Hierarchy) at STM-1 level.Our Digital Hierarchy (DH) optical transmission system features two STM-1 level optical ports, enabling multiplexing and transmission of services such as E1 and Ethernet based on GFP encapsulation. The device supports full-time slot cross functionality, with convenient and flexible uplink/downlink circuits, serving as both uplink/downlink multiplexers or terminal multiplexers to establish point-to-point, chain, or ring networks.

Feature Highlights：

All interface technical parameters comply with international or domestic relevant standards.
2. All interfaces offer excellent overcurrent, overvoltage, and lightning protection. Compliant with ITU-T K.20 standards for lightning impulse, electrical induction test, and electrical contact test; capable of automatic recovery after circuit impulse release.
3. All board cards of the equipment support hot swapping functionality.
4.19-inch 2U server case, card-slot design for easy expansion and maintenance; 1 master slot, 5 business slots, and 1 power slot; the 5 business slots can accommodate various voice disks, data disks, E1 disks, etc., in any combination.
5. Offering 2 STM-1 rate level multiplexing optical interfaces, utilizing SFP optical modules, and supporting hot swapping.
6. 24 standard unbalanced E1 interfaces; 8 physically isolated 10/100M bandwidth Ethernet interfaces; 40 telephone voice interfaces
7. Auxiliary Interface: Ethernet Management Network Interface (MNI); Provides Serial Management Interface CONSOLE, interface type RJ45
8. Supports Remote Power Down (RPD) function and Automatic Laser Shutdown (ALS) feature
9. Supports local software online upgrades for easy maintenance
10. Modular power design; dual power supply options of AC220V and DC-48V
11. Comprehensive network management features, real-time detection of various device operating states (optional)
12. Standard 2U Server Chassis: (484x276x88)mm