Nitek ET1551U - Manual (Page 4)

Installation & Setup
Equipment Requirements & Mounting: The process for utilizing the ET1551U is rather quick and easy. A
common topology involves lengths of existing or new single twisted pair cable up to 1600 feet or 500 meters, the
ET1551U transmitter and the associated receiver such as the ER1551U or ER1651U, an IP camera or other
peripheral network devices referred to as the Power Device or PD, and a 3rd party PoE network switch or Power
Sourcing Equipment/PSE. The PD and PSE must both be either 802.3af or 802.3at compliant. That is requiring
or producing 15.4 W 48VDC for 802.3af up to 25.5W 60VDC for 802.3at PoE power for proper attached device
operation.
The method for facilitating Ethernet communication over single twisted pair cable starts by connecting a receiver
such as the ER1551U or ER1651U to the lengths of single twisted pair “Link” cables. The IP camera interfaces
with the ET1551U via its “Network Port” labeled RJ45 with a CAT5e/CAT6 patch cord. The output of the
ET1551U in tern connects to the length of single twisted pair cable by its two-position plug at the “Link Port” end.
Power from the PSE can provide operational power for just the ET1551U units. An illustration of this is repre-
sented below in the “Common Installment Type ” diagram.
Upon final power up the devices will under go initialization and auto-configuration processes (see LED Indicator
chart on page 6) which may take a number of seconds, time variations are device/installation/topology parame-
ter dependent, to complete before PoE and Ethernet communication commences. For optimal performance,
adherence to the IP camera operational specifications is recommended. If issues arise during the installation
process please see the “Trouble Shooting Tips” section (page 7). You may also contact our web based live tech
support at:
www.nitek.net or call 1-(800)528-4343 in the USA, or (847)259-8900 outside the USA in order to
speak with one of our engineers directly.
Common Installment Type
Single Twisted Pair Cable
up to 100Mbps
max. 1600ft/500m
IP PoE
Camera