Your Upgrade Kit: Retrofit Network with PoE – Easily
You have a reliable Gigabit switch, but it lacks Power over Ethernet (PoE) functionality? No problem. The Extralink 8-Port PoE Injector is the smartest and most cost-effective solution to retrofit your existing Network with PoE. Instead of investing in a completely new and expensive PoE-enabled Ethernet Switch, you simply connect this midspan device between your switch and up to eight end devices. This way, you centrally supply cameras, phones, or WiFi Access Points with power and data – Plug-and-Play, without complicated configuration.
Full Gigabit Power for Your Cameras and Access Points
When it comes to data transmission, you make no compromises. This injector is designed for Gigabit networks and ensures that the full bandwidth of 1000 Mbit/s reaches your devices. This is crucial for data-intensive applications such as transmitting high-resolution videos from your IP Cameras or for the stable performance of modern WiFi Access Points. Unlike cheaper 100 Mbit/s solutions, your Network will not become a bottleneck here.
Safe and Smart: Active PoE according to 802.3at/af Standard
Safety first. As an active PoE Adapter Gigabit, the Extralink Injector follows the strict IEEE 802.3af (PoE) and 802.3at (PoE+) standards. This means it performs a "handshake" with the connected device and only supplies power if it is actually requested. If you accidentally connect a notebook or a printer, nothing happens – your devices are safe. Thanks to Mode A power feeding, it is compatible with a wide range of PoE-enabled devices and provides a reliable Power Supply for IP phones and other PoE hardware.
Flexibility is Key: You Determine the Power Budget
This injector is deliberately supplied without a Power Supply, and that's your advantage. You are not limited to a fixed, predefined power. Simply choose a suitable 48V DC Power Supply whose power (in watts) precisely matches your project. Add up the consumption of your planned devices, add a small reserve of approx. 20%, and you have full control over the power budget of your installation. Whether you want to operate just a few low-power devices or eight powerful PoE+ devices – you decide.
Strengths & Notes at a Glance
- Pro: Enables cost-effective integration of PoE devices into existing networks.
- Pro: Active PoE negotiation (802.3at/af) protects non-PoE devices from damage.
- Pro: Full Gigabit data rate (1000 Mbit/s) without performance loss.
- Pro: Centralizes power supply and simplifies Cabling up to 100 meters.
- Note: A suitable 48V DC power supply must be purchased separately. The total power depends on it.
- Note: As an unmanaged device, it offers no remote maintenance or configuration options.
Specifications & Features
| Manufacturer: | Extralink |
| Model: | 8 Port Gigabit PoE Injector |
| EAN: | 5903148912561 |
| Part Number: | EX.12561 |
| Product Type: | Active Power over Ethernet (PoE) Injector |
| Classification: | Midspan Power Sourcing Equipment (PSE) |
| Number of Ports: | 16x RJ-45 (8x LAN-In, 8x PoE-Out) |
| Data Rate: | 10/100/1000 Mbit/s (Gigabit Ethernet) |
| PoE Standards: | IEEE 802.3at (PoE+), IEEE 802.3af (PoE) |
| PoE Mode: | Mode A (Power over data pairs 1/2 and 3/6) |
| PoE Output Voltage: | 48 V DC |
| Maximum Power per Port: | Up to 25 W (depending on power supply) |
| Maximum Current per Port: | approx. 550 mA to 650 mA |
| Fuses: | Automatic, resettable fuses (650 mA) per port |
| Connections: | 8x RJ-45 (LAN, shielded), 8x RJ-45 (PoE, shielded), 1x DC jack (2.1mm x 5.5mm) |
| Dimensions: | approx. 180 x 45 x 25 mm |
| Weight: | approx. 160 g - 190 g (without power supply) |
| Housing Color: | Green |
| Mounting: | Wall mounting possible |
| Operating Temperature: | 0°C to 50°C |
| Humidity (Operating): | 5% to 90% (non-condensing) |
| Power Supply: | Not included |
| Required Input Voltage: | Depends on external power supply (typ. 48V DC) |
| Management: | Unmanaged, no configuration possible |
| Certificates: | NFPA 79 (device), Others (CE, FCC etc.) depending on the power supply |
Scope of Delivery
| 1 x Extralink 8 Port Gigabit PoE Injector |
Frequently Asked Questions (FAQ)
Which power supply do I need for the Extralink 8-Port PoE Injector?
You need an external 48V DC power supply with a 2.1mm x 5.5mm plug. The power (in Watts) of the power supply determines the total PoE budget. Add up the maximum power consumption of all devices to be connected (e.g., 8 cameras at 7 Watts each = 56 Watts) and choose a power supply with at least 20% power reserve, in this case approx. 70 Watts or more.
Can I also operate devices that do not support PoE with this injector?
Yes. The injector only supplies power to the line when an 802.3af/at-compatible device is connected to the PoE port and requests power. If you accidentally connect a non-PoE device to the PoE output, it will not be powered due to active negotiation and thus will not be damaged.
What does 'Mode A' mean for this PoE Injector?
'Mode A' means that power is transmitted over the same wire pairs (1/2 and 3/6) of the Ethernet Cable that are also used for data transmission in 10/100 Mbps connections. This is one of the two methods defined in the IEEE standard. Most modern PoE devices are compatible with both Mode A and Mode B.
Is this injector a good alternative to a PoE switch?
For smaller installations or to expand an existing network, the injector is a very cost-effective solution. However, a dedicated PoE switch offers advantages such as management functions (VLANs, port monitoring, remote restart) and an integrated power supply, which is preferable for larger or more professional networks.
Can I use all eight ports simultaneously with full PoE+ power (approx. 25W)?
Theoretically yes, but only if your external power supply is strong enough. To power eight devices at 25 Watts each, you would need a power supply with at least 200 Watts of power (8 x 25W), plus a safety reserve. The limitation is almost always the power supply, not the injector itself.
What is the difference between an active and a passive PoE Injector?
An active PoE Injector, like this one from Extralink, follows the IEEE 802.3af/at standards. It communicates with the end device to determine its power requirements before supplying power. A passive injector permanently sends a fixed voltage over the cable. Active injectors are therefore significantly safer and prevent damage to non-PoE devices.
Homepage: https://www.extralink24.com/
