Description
The Cisco ASR920-GNSS is a pluggable GNSS module designed for the Cisco ASR 920 Series Aggregation Services Class B Timing Compliance Routers. This module enhances timing accuracy for mobile backhaul and business services, meeting ITU G.8273.2 Class B specifications and providing superior PTP phase delivery. Positioned as a key accessory for converged access platforms, it supports 5G-ready deployments with high-throughput, low-power consumption in a compact form factor.
Key Capabilities and Applications
- Full-featured converged access platform for Carrier Ethernet aggregation in business services or CSR/small aggregation for 5G mobile backhaul.
- Supports Layer 2 VPN (L2VPN) and Layer 3 VPN (L3VPN) services, including MPLS-based VPNs from the access layer.
- Key Carrier Ethernet features for premium services with enhanced SLAs, optional service-activation for incremental growth.
- Pluggable GNSS receiver acts as a grandmaster clock for aggregating and backhauling small cell traffic.
- Optimized for broadband access delivering voice, video, data, and mobility to thousands of subscribers.
- Quality of Service (QoS) scales to large number of queues per device with three-level hierarchical QoS for enhanced broadband experience.
- Supports IPTV, Video on Demand (VoD), extending Cisco Evolved Programmable Network (EPN) architecture.
Converged Access for Mobile Applications
Deployed as converged access for mobile backhaul, aggregates multiple base stations via Ethernet and IP interfaces using MPLS transport. Provides Synchronous Ethernet (SyncE) and IEEE-1588 timing services. Suitable for small, sealed cabinets in outside environments due to small form factor and extended temperature range.
Metro Ethernet Access
Meets service provider requirements for Carrier Ethernet access, optimized for remote access, central offices, and smaller aggregation sites. Delivers Layer 2, IP, and MPLS transport for L2VPN, L3VPN, and multicast services. Supports MEF 3.0 services: ELINE, ELAN, ETREE, ACCESS ELINE, TRANSIT ELINE.
Flexible Deployment Options
- 1RU compact form factor with various mounting options for space-constrained locations.
- Extended temperature range for minimal environmental control.
- Small footprint extends Carrier Ethernet to remote locations.
- Supports dual redundant fixed power supplies (DC for ASR-920-12SZ-D, single AC for ASR-920-12SZ-A) with front-to-back airflow; ASR-920-20SZ-M has field-replaceable modular AC/DC PSUs.
Powered by Cisco Carrier Ethernet ASIC
Delivers Hierarchical QoS (HQoS), MPLS, VPLS at line-rate with ACL and HQoS. Integrates traffic-management for intelligent packet-switching. Enhanced QoS and security per service, per-traffic-class metering, bidirectional statistics. OAM functions: Layer 2 CFM, IP SLAs, MPLS OAM.
MPLS in the Access Layer
Extends MPLS to access layer for L2/L3 VPNs, unified MPLS control plane. Full VPLS support, multipoint services, full mesh or Hierarchical VPLS (H-VPLS).
Incremental Investment Model
Activate features on demand for MPLS and 10GE services, investment protection based on network location and customer proximity.
Advanced Service-Level Agreements
Service-aware HQoS: eight queues per service, three scheduling levels, large buffers for wireline/wireless apps.
Mobile Timing and Synchronization
- Class B boundary clock ±20ns for MBH & 5G.
- SyncE with ESMC and SSM for clock traceability.
- IEEE-1588 support; GNSS as grandmaster for small cells.
Operational Efficiency
Enhancements for network management: performance awareness, troubleshooting, service turn-up/restoration. ‘Dying gasp’ power indicators, four external alarm inputs. Versatile for GE/10GE deployments; licensing activates additional 10GE ports.
Software and Management
Supported by Cisco IOS XE Software (modular OS with packaging, feature velocity, resiliency). Cisco Prime for EPN: design, provisioning, management. Optics compatibility: refer to https://www.cisco.com/c/dam/en/us/td/docs/routers/asr920/compatibility/matrix/Optics-Matrix-ASR920.pdf.
Compatible Configurations
- Cisco ASR 920-12SZ-A: fixed access with single AC PSU, twelve 1/10GE SFP, Timing interfaces, GNSS module.
- Cisco ASR 920-12SZ-D: fixed access with dual DC PSUs, twelve 1/10GE SFP, Timing interfaces, GNSS module.
- Cisco ASR 920-20SZ-M: fixed access with modular AC/DC redundant PSUs, twenty GE SFP, four GE copper, 4x10GE SFP+, Timing interfaces.
PDF Datasheet available for download. 10 Units In Stock – Immediate Dispatch. Special Offer: $237 (Save 92%).




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