Nitek ER16500U Manuale Utente Scaricare il pdf (Pagina 5)

Installation & Setup

Equipment Requirements & Mounting: The process for employing the ER16500U is rather quick and simple. A common

topology involves up to sixteen (16) existing UTP cables (up to but not exceeding 600m/1,960ft), up to sixteen (16) ET1500U

transmitters, up to sixteen (16) IP cameras or other peripheral network devices (referred to as the Power Device or PD), and

the rack mounted ER16500U (which can be referred to as the NITEK Power Sourcing Equipment/PSE). The ER16500U

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 device operation.

The method for facilitating Ethernet communication and PoE flow over CAT5e/CAT6 UTP cable starts with connecting the

ER16500U NITEK PSE with up to sixteen (16) UTP “link” cables via the RJ45 connectors. The CAT5e/CAT6 cables inter-

face with the IP camera or other PD via the ET1500U transmitters. The IP camera / PD establish connectivity to ET1500U

via RJ45 jacks and a CAT5e/CAT6 patch cords. The ER16500U powers itself and all attached devices within in this local

network/system. The IP data from the PD is transmitted over each individual UTP “link” cable through the ET1500U to the

rack mounted ER16500U in either the IDF or MDF. The aggregate PD data is transmitted to the greater LAN or WAN via the

two (2x) 1 gigabit LAN ports labeled and located on the front of the NITEK PSE. The ER16500U is a Layer 2 switch and

with 2 “smart” LAN ports. For most applications using a single LAN port, which provides 1 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 ER16500U units to-

gether. 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 ER16500U 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 recom-

mended. Additionally you must be aware that in some more complex network configurations loops can be created. Such

conditions can cause data to cascade and therefore bring down a network. The ER16500 has special LED indicators to in-

form you if this is occurring. 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 ad-

hering 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

Up to sixteen (16) NITEK ET1500U’s interface with an assortment of network peripherals providing both power (PoE) and Ether-

net data connectivity over up to sixteen (16) UTP cables at the maximum distance of 1,960ft. The two (2) 1Gigabit LAN ports on

the ER16500U provide connectivity to network switches and other LAN devices for data sorting, storage, and processing. Each

port of the ER16500U outputs a max of 25.5W (PoE+) power and 100Mbps of data bandwidth throughput.

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Nitek ER16500U Manuale Utente Pagina 5