Description
COFE 4-Port PoE Switch
A COFE 4-Port PoE Switch is a small unmanaged Ethernet switch designed to power and connect network devices such as IP cameras, wireless access points, and VoIP phones using a single Ethernet cable. With Power over Ethernet (PoE) technology, the switch sends both data and electrical power through the same cable, reducing the need for extra power adapters and making installation easier.
Port Configuration
Most COFE 4-Port PoE switches include:
- 4 × PoE RJ45 ports for powering devices
- 1 or 2 uplink ports for connecting to a router, NVR, or main network
The PoE ports supply both power and network connectivity to connected devices like security cameras or wireless access points.
PoE Power Capacity
Typical PoE specifications include:
- PoE standard: IEEE 802.3af / IEEE 802.3at
- Power per port: Up to 30W
- Total PoE power budget: Usually 60–120W depending on the model
This power output is sufficient for devices like IP cameras, Wi-Fi access points, and IP phones.
Network Speed and Performance
COFE 4-port switches commonly support:
- 10/100 Mbps Fast Ethernet or Gigabit Ethernet speeds
- Auto-negotiation for speed detection
- Auto-MDI/MDIX to automatically detect cable type
- Store-and-forward switching for reliable data transmission
These features help maintain stable communication between devices in a network.
Key Features
1. Plug-and-Play Operation
Most COFE switches are unmanaged, meaning no configuration is required—just connect devices and power it on.
2. Device Auto-Detection
The switch automatically detects PoE-compatible devices and supplies the correct power level.
3. Protection Functions
Many models include:
- Short-circuit protection
- Overload protection
- Surge protection
These safeguards prevent damage to connected equipment.
4. LED Status Indicators
Front LED lights display:
- Power status
- Network link activity
- PoE power status
This helps technicians quickly identify connection issues.
Typical Technical Specifications
| Specification | Details |
|---|---|
| PoE Ports | 4 × RJ45 |
| Uplink Ports | 1–2 × RJ45 |
| Network Speed | 10/100 Mbps or Gigabit |
| PoE Standard | IEEE 802.3af / 802.3at |
| Power per Port | Up to 30W |
| Total Power Budget | 60W–120W |
| Switching Method | Store and Forward |
| Installation | Desktop or Wall Mount |
| Power Supply | 48V DC adapter |
Common Applications
A COFE 4-Port PoE Switch is widely used in:
- CCTV surveillance systems
- IP camera installations
- Wireless access point networks
- VoIP phone systems
- Small office networks
Because it reduces the number of cables and power adapters needed, it is very popular in security camera systems and small business networking setups.
