​​Product Overview​​

The ​​Cisco CMICR-4PS=​​ is a ​​4-port PoE (Power over Ethernet) network interface module​​ designed for ​​Cisco 4000 Series Integrated Services Routers (ISR)​​. It enables these routers to deliver ​​802.3af/at PoE+​​ to connected devices, making it ideal for branch offices and small networks requiring integrated power and data connectivity.

​​Key Technical Specifications​​

• ​​Port Configuration​​: ​​4x 10/100/1000BASE-T PoE+ ports​​ with ​​30W per port​​ (max 120W total).
• ​​Compatibility​​: Exclusively for ​​Cisco ISR 4321, 4331, 4351, and 4431 routers​​ (requires ​​IOS XE 16.9.1+​​).
• ​​Power Efficiency​​: ​​Auto-sensing PoE​​ adjusts output based on device needs to minimize energy waste.
• ​​Layer 2 Features​​: Supports ​​VLAN tagging, QoS prioritization​​, and ​​MACsec encryption​​.
• ​​Management​​: Integrated into ​​Cisco IOS XE CLI​​ for unified configuration and monitoring.

​​Core User Concerns Addressed​​

​​Q: Can this module power high-wattage devices like PTZ cameras or Wi-Fi 6 APs?​​
A: Yes. With ​​30W per port​​, it supports ​​PoE+ (802.3at)​​ devices such as ​​Cisco 9100 APs​​ or ​​IP cameras with heaters​​.

​​Q: Does it require an external power supply?​​
A: No. It draws power directly from the router’s internal PSU, but ensure the router’s ​​total PoE budget​​ isn’t exceeded.

​​Q: Can it operate in non-PoE mode for standard Ethernet devices?​​
A: Yes. The ports automatically detect PoE requirements, functioning as ​​standard Gigabit Ethernet ports​​ when connected to non-PoE devices.

​​Practical Deployment Scenarios​​

• ​​Branch Offices​​: Power ​​IP phones, APs, and security cameras​​ while routing traffic through a single ISR.
• ​​Retail Environments​​: Simplify cabling for ​​POS systems and digital signage​​ with integrated PoE.
• ​​IoT Deployments​​: Support ​​sensors, access controls​​, and other low-power IoT endpoints.

For networks consolidating power and data infrastructure, the [“CMICR-4PS=” is available here (https://itmall.sale/product-category/cisco/).

​​Advantages Over External PoE Switches​​

• ​​Space Savings​​: Eliminates the need for a separate PoE switch, reducing rack clutter.
• ​​Centralized Management​​: Configure PoE policies and port settings via the router’s ​​Cisco IOS interface​​.
• ​​Cost Efficiency​​: Lowers CapEx by integrating routing and PoE into one device.

​​Final Perspective​​

The ​​CMICR-4PS=​​ is a strategic add-on for Cisco ISR 4000 users seeking to streamline infrastructure without sacrificing PoE flexibility. While its 4-port design may limit scalability for larger deployments, its tight integration with Cisco’s ecosystem and energy-efficient design make it a pragmatic choice for small to mid-sized networks prioritizing simplicity and reliability. For IT teams managing hybrid environments, this module bridges the gap between routing and power delivery seamlessly.