Nitek ER8500C - Manual (Page 5)

Installation & Setup
Equipment Requirements & Mounting: The process for employing the ER8500 is rather quick and simple. A
common topology involves up to sixteen (8) existing UTP cables (up to but not exceeding 500m/1,600ft), up to six-
teen (8) ET1500 transmitters, up to eight (8) IP cameras or other peripheral network devices (referred to as the
Power Device or PD), and the rack mounted ER8500 (which can be referred to as the NITEK Power Sourcing
Equipment/PSE). The ER8500 NITEK PSE is both 802.3af and 802.3at compliant. That is it produces 15.4W
48VDC @ 350mA of 802.3af as well as 25.4W 54VDC @ 600mA of 802.3at PoE+ power for proper attached de-
vice operation.
The method for facilitating Ethernet communication and PoE flow over Coaxial cable starts with connecting the
ER8500C NITEK PSE with up to eight (8) coax “link” cables via the BNC connectors. The coax cables interface
with the IP camera or other PD via the ET1500 transmitter. The IP camera / PD establish connectivity to ET1500
via RJ45 jacks and a CAT5e/CAT6 patch cords. The ER8500C powers all attached devices within in this local net-
work/system. The IP data from the PD is transmitted over each individual coax “link” cables through the ET1500 to
the rack mounted ER8500C in either the IDF or MDF. The aggregate PD data is transmitted to the greater LAN or
WAN via a gigabit LAN ports labeled and located on the front of the NITEK PSE. Also commonly done is to use the
LAN port to chain two or more ER8500C units together via a separate network switch. This will provide a way of
bring greater numbers of cameras into a single NIC of a NVR unit. The ER8500C has special LED indicators to
inform you if there are network loops. If the Trouble LED is flashing slowly it will indicate that the network has a
loop in it and data is cascading. It is recommending to remove the LAN jack if this occurs and try to locate the
physical loop if this problem occur.
Upon power up the devices will undergo initialization and auto-configuration processes (see LED Indicator chart on
pg.#7) which may take a number of seconds (time variations are device/installation/topology parameter dependent)
to complete before PoE and Ethernet communication commences. For optimal performance referring to the PoE/
distance chart and adhering to the IP camera/PD operational specifications is recommended. If issues arise during
the installation process please see the “Trouble Shooting Tips” section. You may also contact our web based live
tech support at:
www.nitek.net or call 1-(800)528-4343 in order to speak with one of our engineers directly.
The diagram below shows a common network topology.
Installment Topology