The CRS112-8P-4S-IN is a versatile and robust network switch designed to meet the demands of modern networking environments. With its combination of Gigabit RJ45 ports, Power over Ethernet (PoE) capabilities, and SFP fiber connectivity options, this switch offers exceptional flexibility and performance for various applications.

This switch features eight Gigabit RJ45 ports, all of which support PoE, including the latest standards of 802.3af/at PoE/PoE+. It also supports Passive PoE, making it compatible with a wide range of devices, such as IP cameras, access points, and VoIP phones. The switch is equipped with 12 independent switching ports in total, ensuring efficient data transmission and network management.

One of the standout features of the CRS112-8P-4S-IN is its power versatility. It includes a 28 V 3.4 A power supply in the box, and it also has a secondary DC jack on the back of the enclosure that can accept 48-57 V power supply (not included). This means you can power the switch using either voltage range, and the switch will automatically detect and provide the correct power to connected devices.

The PoE-out capability extends to all eight Ethernet ports, with a maximum output of 1 A per port when using 18-28 V input voltage and 450 mA per port with 48-57 V input voltage. The switch can handle a total PoE power output of up to 2.8A at 18-28 V or 1.4A at 48-57 V, making it suitable for demanding PoE applications.

In addition to its copper Ethernet ports, the CRS112-8P-4S-IN features four SFP ports for optical fiber connectivity, offering uplinks of up to 1 Gbps. This is ideal for extending your network over long distances or connecting to other fiber-based network equipment.

The switch's hardware specifications are impressive, with a MIPSBE architecture, a 400 MHz CPU, 128 MB of RAM, and 16 MB of flash storage. It runs on the RouterOS operating system, providing a powerful and customizable networking platform.

With a compact form factor (200 x 142 x 44 mm) and certifications such as CE, EAC, and ROHS, the CRS112-8P-4S-IN is suitable for various deployment scenarios. It can operate in a wide temperature range from -20°C to 60°C, making it suitable for both indoor and outdoor installations.

In summary, the CRS112-8P-4S-IN is a feature-rich and versatile PoE switch with robust power options, fiber connectivity, and excellent performance characteristics. Whether you need to power multiple PoE devices or extend your network over fiber optics, this switch offers the reliability and flexibility required for modern networking setups.