The Cisco ASR 903 Series Aggregation Services Router is a modular, high-capacity platform designed to deliver advanced Carrier Ethernet and IP/MPLS services at the network edge. Engineered for flexibility and performance, the ASR 903 supports a wide variety of interface modules and redundancy options, making it ideal for applications such as mobile backhaul, metro aggregation, business services, and legacy TDM support.
With a compact 3RU chassis, the ASR 903 enables high-density deployments without compromising on reliability or scalability. It includes integrated timing capabilities (IEEE 1588v2, SyncE), high availability with redundant route switch processors (RSPs), and a full Cisco IOS-XE software suite for advanced routing, QoS, and security.
Carritech supports operators and service providers using the Cisco ASR 903 by sourcing equipment tailored to their technical and operational needs. Whether expanding existing networks, replacing critical infrastructure, or maintaining legacy services, our global supply network allows us to locate and deliver ASR 903 units and components. We ensure every product sourced meets quality standards and is supported by our team for seamless integration and continued service delivery.
Modular 3RU chassis with high port density and scalability
Supports a mix of interface types: 1GE, 10GE, T1/E1, and TDM legacy interfaces
Redundant Route Switch Processors (RSPs) for high availability
Carrier-class timing and synchronization: IEEE 1588v2 and SyncE
Fully supports MPLS, Segment Routing, and VPN services
Hot-swappable line cards and power supplies
Flexible power inputs: AC or DC, with dual input support
Extended temperature models available for harsh environments
NEBS Level 3 certified for carrier deployment
Cisco IOS-XE software with advanced IP routing, QoS, security, and automation features
Fattore di forma: 3RU modular chassis
Dimensions: 5.25 x 17.5 x 18.3 in (13.3 x 44.5 x 46.5 cm)
Weight: ~30–45 lbs (13.6–20.4 kg), depending on configuration
Interfaces (via modules):
Up to 80 x 1GE ports
Up to 24 x 10GE ports
T1/E1, OC-3/OC-12/OC-48, and DS3 modules
2 x RSP slots, 6 x interface module slots
Management Interfaces:
1 x RJ45 console port
1 x management Ethernet port
Timing and Synchronization:
IEEE 1588v2 (PTP), SyncE, BITS in/out
Power Options:
AC: 100–240V
DC: -40 to -72 VDC
Dual power inputs supported
Environmental:
Operating Temp: -40°C to +65°C (extended temp models)
Humidity: 5% to 95% non-condensing
Cooling: Field-replaceable fans; front-to-back airflow
Software:
Cisco IOS-XE
Advanced routing protocols (OSPF, BGP, IS-IS)
MPLS, QoS, IPsec, MACsec, VRFs, and VPNs
MTBF: Model-dependent; designed for carrier-grade uptime
Certifications: RoHS, GR-3108, FCC, UL, CE
| Time Period | Brand / Company | Role / Notes |
|---|---|---|
| 2012 – 2022 | Cisco Systems, Inc. | Original developer, manufacturer, and global marketer of the ASR 903 Series, positioned as a modular solution for metro aggregation and mobile backhaul. |
| 2022 – Present | Cisco (via resellers & partners) | Cisco began positioning newer platforms (e.g., ASR 920, NCS series), but the ASR 903 continues to be supported through authorized resellers and service providers. |
| Present (Secondary Market) | Independent Resellers, Third-party Support Specialists (e.g., Carritech) | With many ASR 903 models reaching end-of-sale or end-of-life, Carritech helps operators source and support these routers to maintain service continuity. |
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