Full English Description for Cisco ASR 902
1. Official Short Order Description (Datasheet Standard Format)
ASR 902: Cisco ASR 900 Series 2RU Shallow-Depth Modular Carrier-Grade Aggregation Services Router, single RSP Route Switch Processor slot (RSP1A/RSP2A), four hot-swappable Interface Module (IM) slots supporting mixed 1G/10G SFP/SFP+, T1/E1, T3, OC-3/OC-12 POS trunk modules, integrated multi-layer timing subsystem (BITS, SyncE, IEEE 1588v2 PTP, 10MHz/1PPS/ToD), dual hot-swappable AC/DC redundant power supplies, single OIR fan tray, modular Cisco IOS XE operating system with full Carrier Ethernet EVPN/VPLS, MPLS L3VPN, SAToP/CESoP TDM pseudowire, hardware IPsec acceleration and mobile transport QoS, extended rugged temperature range for DC-powered models (-40°C ~ +65°C), optimized for 4G/5G pre-aggregation RAN gateways, small service provider remote POP, utility FAN substation aggregation and compact business broadband convergence deploymentsCisco.
2. Complete Detailed Product Overview
Product Line Positioning
Cisco ASR 902 is the compact 2RU shallow-depth modular entry chassis within the ASR 900 IOS XE mobile transport carrier router family, positioned below the 3RU six-slot ASR 903. It adopts a fully FRU hot-swappable design with four IM expansion slots and a single RSP control/forwarding plane, engineered for ETSI 300mm shallow cabinets widely deployed in cell huts, roadside enclosures and rural utility substations. It balances flexible mixed-media TDM/Ethernet convergence, comprehensive synchronous timing for cellular transport, and low power consumption, ideal for mid-scale pre-aggregation sites that do not require dual RSP redundancy of larger ASR 903 platformsCisco.
Modular FRU Hardware Architecture
Single RSP Route Switch Processor Slot
Accepts RSP1A or upgraded RSP2A integrated control+forwarding FRU modules, combining industrial x86 CPU, dedicated Carrier Ethernet ASIC, hardware crypto co-processor and full timing clock circuitry. Memory field-upgradable to 16GB ECC DDR to support large-scale pseudowires, VPN tunnels and DPI traffic inspection. No secondary RSP slot; SSO control-plane redundancy not supported on ASR 902 chassisCisco.
Four Hot-Swap Interface Module (IM) Slots (OIR Supported)
All IM slots support online insertion and removal without chassis power cycle, compatible with full ASR 900 IM portfolio for hybrid legacy TDM + modern fiber convergence:
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Ethernet IMs: 8×1GE RJ45, 4×1GE SFP, 1×10GE XFP/SFP+ high-density fiber uplink modules
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Channelized trunk IMs: 16×T1/E1, 4×T3 serial voice/signaling trunk modules
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Optical IMs: 4×OC-3 / 1×OC-12 POS/ATM long-haul fiber transport modules
All IM ports support IEEE 802.1Q VLAN, MACsec hardware encryption, SyncE clock recovery and wire-speed QoS offloadCisco.
Integrated Multi-Standard Timing Interfaces (Critical for Mobile Backhaul)
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RJ45 BITS timing port for Stratum 3 carrier network clock synchronization
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RJ45 ToD (Time of Day) port for GNSS timing messaging distribution
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Dual mini-coax connectors: 10 MHz reference clock + 1 PPS pulse input/output for external GPS receivers
Fully compliant with ITU-T G.8265.1 / G.8275.1 PTP telecom profiles, SyncE and TDM clock recovery for synchronous 4G/5G fronthaul/backhaul transportCisco.
Management, Alarm & Auxiliary Interfaces
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Dual-mode console port: RJ45 serial + Mini-USB Type B for local offline configuration
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1×10/100/1000BASE-T isolated out-of-band management Ethernet port
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2-channel isolated dry-contact digital alarm I/O terminals for cabinet door sensors, environmental monitoring and external equipment fault alerts
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Dual USB 2.0 Type-A host ports for license import, offline config backup and firmware image upload
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Front-panel multi-color LED array monitoring RSP health, IM link activity, power supply, fan tray, timing lock and critical/minor/major fault alarmsCisco.
Processor, Memory & Storage
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Integrated RSP Forwarding ASIC: Fixed embedded data plane on each RSP with licensed scalable throughput tiers, native hardware offload for SAToP/CESoP TDM pseudowires, IPsec/MACsec encryption, stateful NAT and multicast replication.
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Control Plane Memory: Base 4GB ECC DDR per RSP, field-upgradable to 8GB / 16GB ECC RAM for large BGP routing tables and thousands of mobile transport pseudowire tunnels.
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Storage: 8GB rugged industrial eUSB onboard flash for IOS XE modular boot images, crash dumps and persistent system logging; no internal HDD/SSD expansion bay supportedCisco.
Power, Mechanical & Environmental Specifications
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Form Factor: Standard 2RU 19-inch / ETSI shallow-depth rack-mount chassis, optimized for 300mm deep telecom cabinets
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Cooling: Single hot-swappable OIR fan tray with side-to-side airflow, zero-downtime fan replacement without chassis power down
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Power Supply Architecture: Dual hot-swappable wide-range AC (85–264VAC) / DC (-48VDC) power supplies for N+1 carrier-grade power redundancy
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Operating Temperature:
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DC-powered SKUs: Continuous -40°C ~ +65°C for unmanned outdoor cell cabinets
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AC-powered SKUs: Continuous -5°C ~ +55°C indoor equipment rooms
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Storage Temperature: -40°C ~ +70°C
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Humidity: 10%–95% RH non-condensing operating humidity
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Compliance: UL 62368-1, IEC/EN 60950-1, NEBS GR-1089 / GR-63, FCC Class A, CE certified for carrier central office, cell site and utility substation deploymentCisco.
Official Performance Benchmarks
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Scalable aggregate IMIX forwarding throughput: Up to 60 Gbps with RSP2A high-performance module
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Hardware-accelerated IMIX IPsec VPN throughput: Max 10 Gbps
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Maximum concurrent SAToP/CESoP TDM pseudowires: Up to 1,500 tunnels
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Supported MPLS L2VPN/EVPN/VPLS service instances: Up to 3,000
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Full hardware offload support for NBAR2 AVC deep packet inspection, hierarchical MQC QoS, MACsec link encryption and sub-second BFD fast convergence.
Software & Core Supported Capabilities (Modular IOS XE)
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Converged TDM + All-IP Mobile RAN Transport Suite
SAToP and CESoP pseudowire encapsulation for legacy T1/E1 migration; full 3GPP-compliant IP backhaul transport for multi-generation BTS, NodeB and eNodeB radio traffic over fiber, microwave and DSL links.
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Carrier-Grade MPLS & Carrier Ethernet Services
IPv4/IPv6 dual-stack forwarding, BGP, OSPF, IS-IS, BFD fast convergence; complete MPLS L3VPN, EVPN and VPLS feature stack for multi-tenant operator transport networks and enterprise private WANs.
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Multi-Layer Precision Timing Stack for Synchronous Transport
Native SyncE, IEEE 1588v2 PTP grandmaster/slave, BITS, 10MHz/1PPS and ToD timing subsystems to eliminate clock drift required for cellular voice, data and control signaling.
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Integrated Carrier-Grade Security Stack
Hardware-accelerated IPsec/MACsec tunnel encryption, next-generation stateful zone firewall, large-scale CGNAT address translation, AAA RADIUS/TACACS+, TLS encrypted remote management and IT/OT traffic segmentation for utility convergence networks.
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Hierarchical Mobile QoS & Traffic Visibility
NBAR2 full application classification, multi-level MQC traffic shaping/policing with strict priority queues for mobile voice and control signaling, IP SLA performance monitoring, NetFlow/IPFIX streaming telemetry for centralized transport network capacity planning.
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Carrier-Grade High Availability Mechanisms
NSF Nonstop Forwarding, ISSU In-Service Software Upgrade for zero-downtime firmware updates, HSRP/VRRP gateway redundancy, sub-second BFD link failure detection, dual redundant power and fan architectures for unmanned remote sites.
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Mass Automation & Programmability
CLI/SSH access, NETCONF/YANG data models, SNMP MIB support, compatible with Cisco IoT Field Network Director and NSO Network Services Orchestrator for large-scale cell-site zero-touch provisioning.
Typical Deployment Scenarios
4G LTE/5G mobile pre-aggregation RAN gateways, small service provider remote POP multi-tenant aggregation CPE, rural power grid utility substation FAN aggregation routers, solar/wind renewable energy remote monitoring hubs, compact Carrier Ethernet access aggregation for enterprise branch migration, microwave convergence nodes combining legacy TDM circuits and all-IP radio traffic, unmanned roadside ITS remote connectivity sites requiring shallow ETSI cabinet mounting and wide-temperature hardened hardware.
3. E-commerce Short Marketing Description
Cisco ASR 902 2RU Shallow-Depth Modular Carrier Aggregation Services Router, single RSP1A/RSP2A integrated control/forwarding module, four hot-swappable IM interface slots supporting 1G/10G fiber and T1/E1/T3/OC trunk modules, comprehensive BITS/PTP/SyncE multi-standard timing subsystem, dual redundant AC/-48VDC PSU & single OIR fan tray, DC variants support -40°C ~ +65°C rugged temperature range, modular IOS XE OS with full Carrier Ethernet EVPN/VPLS, MPLS L3VPN, SAToP/CESoP TDM pseudowire and hardware IPsec acceleration, ideal for 4G/5G RAN pre-aggregation, small service provider POP and utility substation FAN transport deployments.
4. Product Catalog Keyword Tags
Cisco, ASR 902, ASR 900 Series, 2RU Shallow ETSI Modular Carrier Aggregation Router, Single RSP Route Switch Processor, Four Hot-Swap IM Interface Slots, Integrated BITS / IEEE 1588v2 PTP / SyncE Timing, Dual Redundant AC/DC Power Supplies, OIR Hot-Swap Fan Tray, -40°C ~ +65°C Extended Rugged Temp (DC Models), NEBS GR-1089 Certified, IOS XE Modular Operating System, Carrier Ethernet EVPN/VPLS, MPLS L3VPN Multi-Tenant Support, SAToP/CESoP TDM Pseudowire Transport, Hardware IPsec/MACsec Acceleration, 4G/5G Mobile Pre-Aggregation Gateway, Small Remote POP CPE, Utility Smart Grid FAN Aggregation Router
Naming Rule Explanation
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ASR = Aggregation Services Router carrier-grade converged transport platform running IOS XE
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902 = Compact 2RU shallow-depth modular carrier edge chassis (4 IM slots, single RSP, smaller expansion capacity than 3RU ASR 903 six-slot model)
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No suffix = Base standard chassis with FRU RSP and IM modular architecture, distinct from fixed-port ASR 901 cell-site hardened routers and large high-capacity ASR 9000 IOS XR core routers
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