QL-MSAP 2570 Multi-service Optical Access Platform

1.1 Overview
QL-MSAP 2570 is the centralized Multi-Service Access Platform (MSAP) compatible with ITU-T standard. It is designed as a cost-effective and flexible multi-service platform, with STM-1 / STM-4/STM-16 level uplink ports and abundant optional downlink cards to provide typical E1 traffic, PCM, optical tributary, EoSDH and EoPDH traffic access and aggregate.

As an important feature, in QL-MSAP 2570, the dual SDH uplink modules and dual Ethernet uplink modules can work simultaneously. Between each SDH uplink module and each sub-slot, there are STM-1 LVDS connections, and similarly, between each Ethernet uplink module and each sub-slot, there are LVDS Gigabit Ethernet connections. With this backplane design, TDM traffic in SDH/MSTP network and packet traffic in IP network can be distributed and aggregated in QL-MSAP 2570.
A powerful timeslot cross-connection and IP data switching facility is supplied in QL-MSAP 2570. With the ability of connecting various network topologies, reliable self-healing mechanism, and unified intelligent management system, it is suitable for enterprise access, private network interconnection, mobile base stations connection and video monitoring applications.
1.2 Features
◼Structure
➢7U height, 19 Inch width standard, 16 card slots.
➢LVDS clock-free backplane, independent SDH bus and GE bus architecture.
➢Dual SDH uplink, dual Ethernet uplink and dual management units architecture ensure the system reliability.
◼SDH uplink card
➢Up to 4× STM-1/STM-4/STM-16 interfaces .
➢LC type SFP module, hot-pluggable.
➢98VC4×98VC4, or 96TU-3×96TU-3, 2016VC12×2016VC12 non-blocking cross-connection.
➢1+1 line card protection to realize clock module hot-backup.
➢1+1 linear unidirectional/ bidirectional Multiplex Section protection (MSP) and SNCP protection.
➢Point-to-point, chain, ring and tangent ring network topology.
◼Ethernet uplink card
➢Up to 4 GE optical ports and 4 GE electrical ports.
➢Each card can aggregate the 1000M Ethernet traffic from up to 8 downlink cards, up to the 128 VCGs can be aggregated to the GE/GX port.
◼Diversified downlink cards
➢Diversified downlink cards include optical downlink, E1, PCM and Ethernet downlink cards.
➢Communication with the remote Ethernet media converter, SDH,PCM and MSTP terminals.
➢Supports 1+1 path protection.
➢Supports the embedded E1 BERT testing function.
➢Compliant o Virtual concatenation (VCAT) and Link Capacity Adjustment Scheme (LCAS) recommendation G.7042
◼Timing
➢Traces any timing source of STM-1/4/16 uplinks or STM-1 optical tributaries, or external timing source.
➢Supports External timing output.
➢The timing source can be switched manually or automatically.
➢Supports free-running, tracing and hold-over modes.
◼System Management
➢Supports RayView network management platform based on C/S architecture.
➢Supports DCC and EXM (Extended E1 interface for management) channel for communication between gateway and elements.
➢Supports DCN channel for the communication between gateway and server.
➢Supports SNMP_V1 and SNMP_V2 protocol.
➢Supports local and remote firmware online update without disturbing existing traffic.
➢Provides top-mounted aural-visual alarm output.