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The ATTE APT-3-11 is a switch/extender equipped with 3 Fast Ethernet ports (10/100 Mbps). It features one PoE+ input port (802.3af/at) and two PoE+ output ports (802.3af/at). This device allows you to connect two IP cameras using a single PoE-enabled port from the main switch, while also extending the PoE power range. The maximum output power depends on the PoE standard supplied to the input: approximately 13 W with 802.3af and 25 W with 802.3at—sufficient to power two IP cameras. The device has no housing and is primarily designed for installation inside an enclosure using screws or mounting pins. It operates reliably in a wide temperature range of -25°C to 65°C.

3 Fast Ethernet Ports, PoE+ Input, 2 PoE+ Outputs
The switch features a total of 3 Fast Ethernet ports (10/100 Mbps). The first port serves as the PoE+ input (802.3af/at), while the remaining two provide PoE+ outputs (802.3af/at). The available output power depends on the PoE standard supplied to the input. When using 802.3af, the APT-3-11 offers approximately 13 W of power; with 802.3at, it provides around 25 W.
PoE Extender Functionality
Thanks to the PoE input port, the device can operate as a PoE extender. It allows you to achieve a total range of 200 meters using standard Ethernet cable, assuming the segment between the power supply/switch and the APT-3-11 is up to 100 meters, and the segment between the APT-3-11 and the end devices is also up to 100 meters.


Applications
The device works perfectly in surveillance systems for powering IP cameras. It is most commonly used to split PoE power—using a single port on the main switch, you can connect two cameras through the APT-3-11. You can also use the device for cascading connections, where one switch powers another.
Housing
The offered product does not have a housing and is typically installed inside various types of enclosures. It features a wide operating temperature range—from -25°C to 65°C. Thanks to this, you can confidently use the APT-3-11 for outdoor installations, provided it is placed inside a sealed enclosure or box.

Specifications
ATTE APT-3-11 | |
Ports Quantity |
1x PoE IN 2x PoE OUT |
Port Type | Fast Ethernet 10/100 Mb/s |
PoE Input |
LAN1 PoE+ 802.3af/at Passive PoE |
PoE Output |
LAN2 - LAN3 PoE+ 802.3af/at |
Input Voltage Range | 44 - 58 V DC |
Output Voltage Range | Same as input voltage |
Power Consumption | 0,3 W |
Power Control on Output | Auto-negotiation |
Surge Protection | LAN1 - LAN3 |
Overload Protection | LAN2 - LAN3, overcurrent protection 0.7 A |
Power Indicator | LAN1 (yellow LED) – device power |
PoE Indicator | LAN2 - LAN3 (yellow LED) – PoE power presence |
Transmission Indicator | LAN1 - LAN3 (green LED) – connection and data transmission |
Operating Temperature Range: | -25° to 65°C |
Dimensions | 51(73) x 51 x 21 mm |
Weight | 0,026 kg |
Ingress Protection Rating | IP20 |
Housing Design | Universal mounting base |
Mounting | Using mounting pins |