MikroTik CRS112-8P-4S-IN PoE Switch in Lebanon
MikroTik CRS112-8P-4S-IN: Compact 8-Port PoE Switch for Lebanon
The MikroTik CRS112-8P-4S-IN is a 12-port managed switch with eight Gigabit Ethernet PoE ports and four SFP cages, running RouterOS Level 5. It auto-senses 802.3af/at (PoE/PoE+) and passive PoE on all eight copper ports, powering access points, IP cameras, VoIP phones, and CPE radios directly from the switch. The four SFP slots provide fiber uplink capability at up to 1 Gbps per port.
HI-GAIN stocks the CRS112-8P-4S-IN at our Dora, Beirut warehouse. For Lebanese offices, WISPs, and surveillance installers who need a compact PoE switch with full MikroTik management features, the CRS112 delivers enterprise-grade switching at a fraction of what Cisco Catalyst or HPE Aruba charge.
CRS112-8P-4S-IN Full Specifications
| Specification | Value |
|---|---|
| Ethernet Ports | 8x Gigabit with PoE-out |
| SFP Ports | 4x 1G SFP cages |
| PoE Standard | 802.3af/at auto-sensing + Passive PoE |
| Max PoE Current | 1A per port (18-28V input) / 450 mA (48-57V input) |
| CPU | QCA8511, 400 MHz |
| RAM | 128 MB |
| Switching Capacity | 24 Gbps (non-blocking 12 Gbps) |
| Forwarding Rate | 17.8 Mpps |
| Power Input | 28V 3.4A PSU included + secondary 48-57V DC jack |
| Form Factor | Desktop |
| RouterOS License | Level 5 |
PoE Power Architecture — Understanding the Dual-Input Design
The CRS112 has a unique dual power input design. The included 28V 3.4A power supply connects to the primary DC jack and outputs passive PoE at up to 1A per port (roughly 24W per port at 24V). For 802.3af/at compliance at 48V, connect a separate 48-57V power supply (sold separately, MikroTik models 48POW or 48V2A96W) to the secondary DC jack on the rear panel.
This dual-input design lets you run mixed PoE environments. Ports connected to MikroTik devices expecting 24V passive PoE (like cAP ax or SXT SQ 5 ax) use the 28V supply. Ports connected to 802.3af/at devices (Ubiquiti APs, IP cameras, VoIP phones) use the 48V supply.
Deployment Scenarios in Lebanon
Small Office Network
A typical Lebanese office with 8-12 employees needs PoE for ceiling-mounted access points and VoIP phones. The CRS112 powers two MikroTik cAP ax access points and four VoIP phones on ports 1-6, with ports 7-8 connected to NAS storage and a printer. One SFP port provides fiber uplink to the building's backbone switch, and a second SFP connects to a redundant link. VLANs segment wireless, voice, and data traffic — all configured through RouterOS.
IP Surveillance Installation
Security camera installations across Beirut's commercial districts commonly need 4-8 PoE-powered cameras. The CRS112 powers eight 802.3af cameras (using the optional 48V PSU) and connects to an NVR via SFP fiber. The RouterOS IGMP snooping feature prevents multicast camera streams from flooding all ports, and port isolation keeps each camera's traffic private.
WISP Tower Site Switch
At a tower site running multiple MikroTik sector radios, the CRS112 powers 4-6 BaseBox 5 or NetBox 5 ax units via passive PoE. SFP ports carry fiber uplinks back to the ISP core router. Link aggregation (bonding) across two SFP ports doubles uplink capacity to 2 Gbps when the site demands it.
CRS112 vs CRS328 — Choosing the Right PoE Switch
For deployments needing more than 8 PoE ports, the CRS328-24P-4S+RM offers 24 Gigabit PoE ports with 500W total PoE budget and 4x 10G SFP+ uplinks. Read our CRS328 guide for a full comparison. The CRS112 is the right choice when 8 PoE ports are sufficient and desk-size form factor is preferred over rackmount.
RouterOS L5 Management Features
The CRS112 runs full RouterOS Level 5, providing management capabilities that unmanaged or web-managed switches cannot match:
- VLANs: 802.1Q VLAN tagging and port-based VLANs for network segmentation
- ACLs: Layer 2 and Layer 3 access control lists for traffic filtering
- IGMP Snooping: Optimizes multicast traffic for IPTV and surveillance streams
- Port Isolation: Prevents inter-client communication on shared switches — essential for guest networks
- Link Aggregation: Bond multiple ports for increased bandwidth and redundancy
- RSTP/MSTP: Spanning tree protocols for loop prevention in multi-switch topologies
Configuration is done via Winbox, WebFig, or CLI — the same tools used across all MikroTik products. A technician familiar with any RouterOS device can manage the CRS112 without additional training.
Where to Buy the CRS112-8P-4S-IN in Lebanon
HI-GAIN stocks the CRS112-8P-4S-IN and optional 48V power supplies at our Dora, Beirut warehouse. We carry compatible SFP modules for fiber uplinks. Browse all MikroTik switches available in Lebanon, check real-time stock and pricing, or call +961 3 337 666.