This device requires a 12vdc 2.5amp power supply (not included) Your supply will connect to the screw terminals of the included green removable Phoenix connector as seen in the photos. 

The Vi2308A needs to be deployed along with single port Vi23xxA on the remote end of each UTP cable (not included)

The Smart Choice for Transmission Solutions.  The MaxiiCopperTM Vi2308A is a revolutionary data transmission device that extends full-duplex High-Speed Ethernet over existing or new UTP infrastructures. It extends 10BaseT signals up to 3,000 ft. (909M) and 100BaseT up to 2,100 ft. (640m). It employs MaxiiCopper, an innovative and unique Ethernet extension technology, that is designed to take full advantage of high-bandwidth UTP cables and maintain a full-duplex 10 or 100 Mb/s Ethernet connection up to the maximum range - with minimum transmission error and latency. Its dual-rate capability provides an easy way to balance the best possible network throughput and long-reach distance design. 

The Vi2308A 8 ports:

1 pair of UTP can be used for both 10BaseT and 100BaseT signals. 

4 Pair is restricted to 100BaseT use. 

The Vi2308A needs to be deployed along with single port Vi23xxA on the remote end of each UTP cable

It is equipped with LEDs to provide link status and configured data rate for each port. It is completely transparent to the corporate IP network and higher-layer protocols and requires no IP programming or other configurations. The Vi2308A is offered in a 19-inch 1U height enclosure for rack-mount or wall-mount applications. 

It is ideal for medium to large-scale IT networking or digital CCTV projects. Important Safety Warning Ethernet Switch/NVR-end Installation - Connect the chassis ground screw to a solid earth ground. - Connect the RJ45 connector of the Ethernet switch to the 10/100BaseT Ethernet port of Vi2308A using a standard Cat5/6 cable of a maximum 100 m in length. - Connect long UTP cables to the RJ45 connectors of the Vi2308A. - 

Connect the 12V power supply to the power connector of the extender hub. 

The link LED on the 10/100 Ethernet connectors should be “ON” to indicate proper connection between the switch and Ethernet ports of Vi2308A. 

While the Link LED, Orange for 100BaseT and Green for 10BaseT, on the extended side, in a steady state will indicate confirmed connection between extenders.

If no power supply is plugged in the unit will use PoE

Specifications:

Electrical
Ethernet InterfaceStandard 10/100BaseT
Data RateAuto select 10/100 Mb/s
Full speed / full duplex at maximum rated distances
UTP100 Ohm +/- 20%, Cat5 or better
10BaseT: up to 3,000 ft. (914 m)
100BaseT: up to 2,100 ft. (640 m)
Power Consumption12 VDC@ 600 mA (max.)
Status LEDsPower On
Standard Ethernet: Traffic, Link
Extended Ethernet: Traffic, 10/100BaseT
ConnectorsEthernet Interface: 8 x RJ-45 Connectors
Extended Interface: 8 x RJ-45 Connectors
Power: 2-pin Pluggable Terninal Block
RFC2544 TCP/IP Packet Transmission
PoE CompatibilityIEEE 802.3af, at, bt PoE Standards up to 74W
RFC2544 TCP/IP Packet Transmission
768 UDP, 2068 HTTP, 793 TCP
791 IP, 1783 TFTP, 894 IP over Ethernet
Jumbo Frame SupportUp to 9,600 bytes
Regulatory
FCCPart 15, Subpart B, Class B 2010
EmissionsEN 5502:2006+A1:2007, EN 61000-3-2:2006+A1:2009+A2:2009
EN 61000-3-3:2008, EN 55024:1998+A1:2001+A2:2003
SafetyCE
EnvironmentalRoHS
Environmental
Humidity0 to 95%, non-condensing
TemperatureOperating: -40°C to +75°C
Storage: -40°C to +85°C
Mechanical
Dimensions0.97x1.75x2 in., 2.5x4.4x5 cm (HxWxL)
Weight0.15 lb, 67 g