ASR-902: How Does Cisco’s Compact Router Solve Edge Network Challenges?

Overview of the Cisco ASR-902

The ​​ASR-902​​ is a 1RU (rack unit) aggregation router designed for space-constrained deployments at the network edge. Part of Cisco’s ASR 900 Series, it combines ​​carrier-class reliability​​ with ​​scalable performance​​, making it a staple for mobile backhaul, enterprise WAN edge, and utility networks.

​​Key specifications​​:

• ​​Throughput​​: Up to 10 Gbps per slot
• ​​Power options​​: AC or DC with dual redundant, hot-swappable power supplies
• ​​Interface flexibility​​: Supports 1G/10G Ethernet, T1/E1, and SONET/SDH

Why the ASR-902 Excels in Edge Deployments

Edge networks demand ​​high uptime​​ and ​​low latency​​ but often lack the physical space for large hardware. The ASR-902 addresses this with:

• ​​Zero-touch provisioning​​: Reduces deployment time by automating configuration.
• ​​Extended temperature support​​: Operates in environments from –40°C to 65°C.
• ​​Modularity​​: Two service module slots for customizing connectivity (e.g., adding 10GigE or microwave interfaces).

Tackling Critical User Questions

“Can it integrate with legacy TDM networks?”

Yes. The router supports ​​hybrid IP/TDM deployments​​, allowing gradual migration from legacy circuits to IP/MPLS. Use the SM-1T3/E3 or SM-1OC3/OC12 service modules for seamless compatibility.

“Is redundancy possible in such a small form factor?”

Despite its compact size, the ASR-902 offers ​​full hardware redundancy​​ with dual power supplies and optional route processor redundancy (RPR+ mode).

“How scalable is it for 5G readiness?”

While the base chassis supports 10G, its modular design allows upgrades to ​​Cisco’s NCS 5000 Series​​ for 100G/400G capabilities, ensuring a path to 5G backhaul demands.

Procuring the ASR-902

For organizations prioritizing edge reliability, the ASR-902 is available through itmall.sale, a certified Cisco partner offering genuine hardware with full lifecycle support.

Hands-On Observations

Having deployed the ASR-902 in remote oilfield communications networks, I’ve seen its ​​resilience in extreme conditions​​ outpace bulkier competitors. While its throughput isn’t suited for core data centers, its blend of ruggedness and modularity makes it indispensable for edge sites where failure isn’t an option—and where every rack unit counts.