The PoE Chameleon for Your Network
You know the problem: Many PoE switches are inflexible, supporting either only 24V Passive PoE for specialized devices or exclusively the 802.3af/at standard for common IP cameras and phones. This often forces you to make compromises or use multiple switches, making your network unnecessarily complex.
Your Solution: The MikroTik CRS112-8P-4S-IN
The MikroTik CRS112-8P-4S-IN ends this dilemma once and for all! Its eight Gigabit ports are equipped with an intelligent Auto-Sensing PoE function that automatically detects which PoE standard your connected device requires. Whether you want to power a MikroTik SXT antenna with 24V or an 802.3af IP camera, this switch reliably and correctly supplies power – all from a single device.
Maximum Flexibility through Dual-Power and Fiber Uplink
The true strength of the CRS112-8P-4S-IN lies in its unique dual-power architecture: With two separate power jacks, you can power the switch simultaneously with a 28V power supply (for Passive PoE) and an optional 48V power supply (for 802.3af/at). The switch intelligently and automatically manages power output, ensuring you always have optimal power for your devices. Additionally, four SFP slots offer the possibility to implement fast fiber uplinks, elegantly bypassing data transmission bottlenecks, for example, from high-resolution cameras.
Full Control with RouterOS
Thanks to the powerful RouterOS with license level 5, you have full control over your network. Configure VLANs, QoS rules, or monitor traffic – all via an intuitive interface. The MikroTik CRS112-8P-4S-IN is not just a switch, but an intelligent network management tool that helps you design your network efficiently and future-proof, saving you time and costs.
Technical Specifications
| Manufacturer: | MikroTik |
| Model: | CRS112-8P-4S-IN |
| Architecture: | MIPSBE |
| CPU: | QCA8511 |
| CPU Core Count: | 1 |
| CPU Nominal Frequency: | 400 MHz |
| RAM: | 128 MB |
| Storage Size: | 16 MB |
| Storage Type: | FLASH |
| Ethernet Ports: | 8 x 10/100/1000 Mbit/s Gigabit RJ-45 |
| SFP Ports: | 4 x SFP |
| PoE Out: | Yes, Passive PoE (24V), 802.3af/at (48V) |
| Number of DC Inputs: | 2 (DC Jack) |
| DC Input Voltage: | 12-57 V (Port 1), 48-57 V (Port 2 for 802.3af/at) |
| Max. Power Consumption (without PoE): | 10 W |
| Max. Power Consumption (with PoE): | 192 W (with 48V PSU), 102 W (with 28V PSU) |
| Operating System: | RouterOS Level 5 |
| Serial Port: | RJ45 |
| Operating Temperature: | -20°C to +60°C |
| Dimensions: | 200 x 142 x 44 mm |
| MTBF: | approx. 200,000 hours at 25°C |
Scope of Delivery
| 1 x MikroTik CRS112-8P-4S-IN PoE Switch |
| 1 x Power Supply 28V 3.4A |
| 1 x Quick Start Guide |
Häufig gestellte Fragen (FAQ)
What is special about the PoE feature of the MikroTik CRS112-8P-4S-IN?
The CRS112-8P-4S-IN offers auto-sensing PoE on all eight Gigabit ports. This means it automatically detects whether a connected device requires 24V Passive PoE or the 802.3af/at standard and powers it accordingly. You don't have to worry about compatibility.
Which power supplies can I use with this switch?
The switch comes with a 28V 3.4A power supply for Passive PoE. For the 802.3af/at standard, you will need an optional 48V power supply (e.g., MikroTik 48POW), which you can plug into the second power input. The switch will then intelligently manage the power output.
What are the SFP ports on the CRS112-8P-4S-IN used for?
The four SFP ports allow you to connect fiber optic cables. This is ideal for fast uplinks to other switches, servers, or core routers over longer distances or in environments with electromagnetic interference where copper cables reach their limits.
What operating system does the switch run and what features does it offer?
The CRS112-8P-4S-IN runs MikroTik's RouterOS with License Level 5. This powerful operating system provides extensive network management features, including VLANs, QoS, firewall rules, routing, VPN, and detailed monitoring capabilities, all through an intuitive interface.
For which applications is the MikroTik CRS112-8P-4S-IN ideal?
The switch is perfect for small to medium-sized businesses, offices, hotels, or even demanding home networks. It is excellently suited for scenarios where a mix of different PoE devices (such as Wi-Fi access points, IP cameras, VoIP phones) and a fast fiber optic connection are required.
Homepage: http://www.mikrotik.com/
