Nitek EL1551U User Manual download pdf (Page 3)

Parts of the EL1551U

Wire and Cable Recommendations: The EL1551U is designed for use with copper based 24AWG

Twisted Pair (CAT3 or CAT5) cable. Other heavier gage wires are possible but the wire must be a

twisted paired cable. The RJ45 network port pin out schemes shall be in accordance with the 568B

standard. The quality of which must be consistent with any reasonably serviceable cable condition.

Cables should be free from damage as in cuts, breaks, or cracks to the outer covering and insulated

shielding which may compromise the signal conductivity of the cable.

For more specific information regarding wire types, gauges, and proper installation techniques

please call Tech Support at (847)259-8900 or (800)528-4343.

Ethernet: The EL1551U is designed to transmit and receive up to 100Mbps of Ethernet data to a

maximum distance of 1,600ft / 500m. Before considering this solution be sure that the cable involved

does not exceed the recommended maximum lengths. If the cable distance value is undetermined at

the time of installation, we recommend the use of a Time Domain Reflectometer (TDR) or other

method to determine the unknown cable distance estimates.

Installation Considerations

UTP Side of Device

Network Port Side

10/100 Link LED Indicator

• On Solid = 100Mb

• Flashing = 10Mb

• Off = No Link

Link Status LED Indicator

• On Solid = Ethernet Link

• Off = No Ethernet Link

Power LED Indicator

• On Solid = The Unit is powered

and ready to use

• Off = The unit is not powered

PoE Out LED Indicator

• On = PoE is being provided

out the network port

• Off = PoE is “not” being sent

out the network port

UTP Connector

• Attaches to twisted

pair wires

Optional Power Input

• Class II 48-56VDC input to create PoE

in installations where a PoE switch is

not available.

• On Receiver used to power the system

when a PoE switch is not available.

• On Transmitter used to provide greater

PoE power out the network port.

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Nitek EL1551U User Manual Page 3

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