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Overview of the Cisco CMICR-4PT=
The CMICR-4PT= is a 4-port Power over Ethernet (PoE) module designed for Cisco Catalyst switches like the C9200 and C9300 series. It provides additional PoE+ (802.3at) ports to support high-density deployments of IP phones, wireless access points, and IoT devices in enterprise environments.
Key specifications include:
- 4x RJ45 ports delivering up to 30W per port (PoE+).
- Backward compatibility with PoE (802.3af) devices.
- Hot-swappable design for installation without downtime.
- Auto-sensing to negotiate power delivery based on device requirements.
Resolving Core Power and Scalability Challenges
1. Expanding PoE Capacity Without Hardware Overhaul
Enterprises often face switch port exhaustion when adding IoT devices. The CMICR-4PT= addresses this by:
- Adding 120W total PoE+ capacity to existing Catalyst switches.
- Supporting mixed-mode deployments (PoE and non-PoE devices on the same switch).
- Prioritizing power allocation to critical devices during shortages.
2. Ensuring Safe Power Delivery in High-Density Setups
Overloading circuits can damage equipment or cause fires. This module integrates:
- Per-port current monitoring to prevent overloads.
- Short-circuit and surge protection compliant with IEC 60950-1.
- Cisco’s StackPower technology (when used with compatible switches) to pool power across multiple units.
3. Simplifying Upgrades for IT Teams
The CMICR-4PT= reduces deployment complexity through:
- Tool-less installation into switch module slots.
- Zero-touch provisioning via Cisco DNA Center.
- Real-time power usage dashboards for proactive capacity planning.
Comparison: CMICR-4PT= vs. External PoE Injectors
| Feature | CMICR-4PT= | Third-Party PoE Injectors |
|---|---|---|
| Port Density | 4 ports per module | 1–2 ports per unit |
| Management | Integrated with Cisco IOS | No centralized control |
| Scalability | Add multiple modules | Requires manual cabling |
| Total Cost of Ownership | Lower (uses existing switch infrastructure) | Higher (per-device power and cabling) |
Pricing and Availability
The CMICR-4PT= is available through itmall.sale, with prices averaging 600–600–600–800 per module. Discounts may apply for educational institutions or government contracts.
Why This Module Is a Strategic Investment for Growing Networks
In my experience managing campus networks, the CMICR-4PT= eliminates the “forklift upgrade” dilemma when PoE demands outpace initial switch configurations. While external injectors seem cheaper upfront, hidden costs from cabling clutter and management overhead make this module a smarter long-term choice. The lack of PoE++ (802.3bt) support limits it to 60W devices, but for 90% of current IP phones, cameras, and APs, it delivers precise, scalable power without sacrificing rack space. For enterprises planning smart building integrations, pairing this with Cisco’s StackPower can future-proof energy distribution for years.