Nitek ER16500C - Manual (Page 5)

Installation & Setup
Equipment Requirements & Mounting: The process for employing the ER16500 is rather quick and simple. A
common topology involves up to sixteen (16) existing UTP cables (up to but not exceeding 500m/1,600ft), up to
sixteen (16) ET1500 transmitters, up to sixteen (16) IP cameras or other peripheral network devices (referred to as
the Power Device or PD), and the rack mounted ER16500 (which can be referred to as the NITEK Power Sourcing
Equipment/PSE). The ER16500 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
ER16500 NITEK PSE with up to sixteen (16) 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 ER16500 powers itself and all attached devices within in this
local network/system. The IP data from the PD is transmitted over each individual coax “link” cables through the
ET1500 to the rack mounted ER16500 in either the IDF or MDF. The aggregate PD data is transmitted to the
greater LAN or WAN via the two (2) gigabit LAN ports labeled and located on the front of the NITEK PSE. The
ER16500 is a Layer 2 switch and with 2 “smart” LAN ports. For most applications using a single LAN port, which
provides a gigabit of bandwidth, will be the easiest and best solution. Also commonly done is to use the additional
LAN port to chain two or more ER16500 units together. This will provide a way of bring 32 cameras or more in to a
single NIC of a NVR unit. Finally there is an option to use both LAN jacks out the ER16500 into a additional switch
for more throughput. While this is possible the additional switch MUST be equipped with a 10Gigibit port or this will
not work and the use of both LAN jacks into a single switch is not recommended. Additionally you must be aware
that in some more complex network configurations loops can be created. Such conditions can cause data to cas-
cade and therefore bring down a network. The ER16500 has special LED indicators to inform you if this is occur-
ring. 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 second LAN jack if this occurs and see if the problem goes away.
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