​​ASR-920-12CZ-D= Overview: Core Design and Functionality​​

The ​​ASR-920-12CZ-D=​​ is a ​​12-port, DC-powered aggregation router​​ in Cisco’s ASR 920 Series, tailored for ​​metro Ethernet and service provider edge deployments​​. Its compact 1RU chassis integrates ​​8x1G RJ45 ports​​ and ​​4x10G SFP+ slots​​, offering flexibility for mixed-speed environments while prioritizing energy efficiency and space savings.

​​Technical Specifications and Key Features​​

• ​​Hybrid Port Configuration​​: Combines ​​1G copper​​ and ​​10G fiber interfaces​​ for seamless migration from legacy to high-speed networks.
• ​​DC Power Redundancy​​: Supports ​​dual 48V DC inputs​​ with -48V to -60V range, ideal for telecom cabinets or industrial sites.
• ​​Advanced Timing​​: Enables precise synchronization via ​​SyncE and IEEE 1588v2​​, critical for 5G fronthaul/backhaul.

​​Primary Deployment Scenarios​​

• ​​Mobile Network Aggregation​​: Handles LTE/5G cell site traffic with low latency and jitter performance.
• ​​Enterprise WAN Edge​​: Consolidates branch office connectivity with VLAN segmentation and MPLS support.
• ​​Smart City Infrastructure​​: Powers IoT gateways and traffic management systems in space-constrained deployments.

​​Addressing Critical User Questions​​

​​Q: How does this model differ from the ASR-920-12SZ-D= ?​​

The 12CZ-D= emphasizes ​​copper port density​​ (8x1G RJ45), while the 12SZ-D= offers ​​12x10G SFP+ slots​​ for all-fiber setups.

​​Q: Is it compatible with AC power infrastructures?​​

No. The “-D” suffix denotes ​​DC-only operation​​. For AC power, consider the ASR-920-12CZ-A= variant.

​​Procurement and Licensing Considerations​​

The ASR-920-12CZ-D= is available through Cisco-authorized suppliers like [“ASR-920-12CZ-D=” link to (https://itmall.sale/product-category/cisco/). Ensure compliance with ​​Network Advantage licensing​​ to unlock advanced QoS and security features.

​​Why This Router Fills a Critical Gap​​

In an era where edge networks demand both legacy compatibility and future-ready scalability, the ASR-920-12CZ-D= delivers ​​operational versatility without compromise​​. Its hybrid port layout eliminates the need for separate aggregation switches, while DC power resilience ensures uptime in environments where AC reliability is questionable. For teams managing distributed infrastructure with limited rack space, this router is a pragmatic, cost-saving cornerstone.