AMX NXA-ENET8POE Specification

Brand: AMX

Model: NXA-ENET8POE

Category: Network switches

Type: Specification

Operation/Reference Guide

Network/Communication

NXA-ENET8POE

Gigabit Ethernet Switch

Initial Release:3/23/2011

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Table of Contents

NXA-ENET8POE Gigabit PoE Ethernet Switch

Table of Contents

NXA-ENET8POE Gigabit PoE Ethernet Switch ...................................................1

Overview .................................................................................................................. 1

Common Application ................................................................................................ 1

Features .......................................................................................................................... 1

NXA-ENET8POE Architecture................................................................................... 3

Power-over-Ethernet Capability................................................................................ 3

10/100/1000BASE-T Ports ........................................................................................ 4

SFP Slot .................................................................................................................... 4

Port and Power Status LEDs ..................................................................................... 4

Power Supply Socket ................................................................................................ 4

Network Planning ...............................................................................................5

Introduction To Switching......................................................................................... 5

Application Examples ............................................................................................... 5

Supplying PoE ................................................................................................................. 5

Collapsed Backbone........................................................................................................ 5

Meeting Room ................................................................................................................ 6

Making VLAN Connections.............................................................................................. 6

Application Notes..................................................................................................... 7

Installing the NXA-ENET8POE .................................................................................. 8

Selecting a Site ............................................................................................................... 8

Ethernet Cabling ............................................................................................................. 8

Installing an Optional SFP Transceiver ............................................................................ 8

Connecting to a Power Source........................................................................................ 9

Making Network Connections ................................................................................ 10

Connecting Network Devices........................................................................................ 10

Twisted-Pair Devices ..................................................................................................... 10

Power-over-Ethernet Connections ................................................................................ 10

Cabling Guidelines ........................................................................................................ 10

Connecting to PCs, Servers, Hubs and Switches ........................................................... 10

Network Wiring Connections ........................................................................................ 10

Fiber Optic SFP Devices................................................................................................ 11

Connectivity Rules .................................................................................................. 12

1000BASE-T Cable Requirements ................................................................................. 12

1000 Mbps Gigabit Ethernet Collision Domain ............................................................. 12

100 Mbps Fast Ethernet Collision Domain .................................................................... 12

10 Mbps Ethernet Collision Domain.............................................................................. 12

Cable Labeling and Connection Records ................................................................ 13

NXA-ENET8POE Gigabit PoE Ethernet Switch

Table of Contents

Browser-Based Configuration Pages ................................................................15

Initial Configuration ................................................................................................ 15

Configuration Page Interface.................................................................................. 16

Status...................................................................................................................... 17

Overview ....................................................................................................................... 17

Statistics ........................................................................................................................ 20

System .................................................................................................................... 21

Name............................................................................................................................. 21

LAN Settings ................................................................................................................. 22

Password ....................................................................................................................... 23

Secure MAC .................................................................................................................. 24

Tools.............................................................................................................................. 25

Ports ....................................................................................................................... 26

Settings ......................................................................................................................... 26

Storm Control................................................................................................................ 27

Port Mirroring ............................................................................................................... 28

Cable Diagnostics.......................................................................................................... 29

Trunks ..................................................................................................................... 30

Membership .................................................................................................................. 30

Settings ......................................................................................................................... 31

LACP Setup ................................................................................................................... 32

LACP Status................................................................................................................... 33

VLANs ..................................................................................................................... 34

Introduction to VLANs................................................................................................... 34

VLAN Membership ........................................................................................................ 35

VLAN Port Config.......................................................................................................... 36

802.1X .................................................................................................................... 38

Settings ......................................................................................................................... 38

Statistics ........................................................................................................................ 40

IGMP Snooping....................................................................................................... 41

Settings ......................................................................................................................... 41

Status ............................................................................................................................ 42

LLDP ....................................................................................................................... 43

Settings ......................................................................................................................... 43

Neighbor ....................................................................................................................... 44

RSTP........................................................................................................................ 45

Settings ......................................................................................................................... 45

STA Introduction ........................................................................................................... 46

Status ............................................................................................................................ 47

QOS ........................................................................................................................ 48

Settings ......................................................................................................................... 48

Table of Contents

vii

NXA-ENET8POE Gigabit PoE Ethernet Switch

Port-based..................................................................................................................... 49

802.1p........................................................................................................................... 49

DSCP ............................................................................................................................. 49

SNMP...................................................................................................................... 50

Settings ......................................................................................................................... 50

POE......................................................................................................................... 51

Settings ......................................................................................................................... 51

Logout .................................................................................................................... 52

Appendix A: Troubleshooting ..........................................................................53

Diagnosing NXA-ENET8POE Indicators .................................................................. 53

Use With the MVP-9000i......................................................................................... 53

SFP Slot .................................................................................................................. 53

Power and Cooling Problems ................................................................................. 53

Installation .............................................................................................................. 53

In-Band Access........................................................................................................ 53

Forgot or Lost Password......................................................................................... 53

Changing a PC’s IP Address.................................................................................... 54

Resetting the NXA-ENET8POE to Factory Defaults................................................ 54

Appendix B: Cables ..........................................................................................55

Twisted-Pair Cable and Pin Assignments ................................................................ 55

10BASE-T/100BASE-TX Pin Assignments................................................................ 55

Straight-Through Wiring ......................................................................................... 56

Crossover Wiring .................................................................................................... 56

1000BASE-T Pin Assignments ................................................................................. 57

Cable Testing for Existing Category 5 Cable .......................................................... 57

Adjusting Existing Category 5 Cabling to Run 1000BASE-T.......................................... 57

Fiber Standards ...................................................................................................... 57

viii

NXA-ENET8POE Gigabit PoE Ethernet Switch

Table of Contents

NXA-ENET8POE Gigabit PoE Ethernet Switch

NXA-ENET8POE Gigabit PoE Ethernet

Switch

Overview

The NXA-ENET8POE Gigabit Ethernet Switch features 8 x 1000 Base-T ports and is designed for homes and

businesses that require a managed network for efficient handling of voice, video, and data applications. The

NXA-ENET8POE transmits both power and data through a single cable to eight remotely located

Power-over-Ethernet (PoE) enabled devices such as AMX Touch Panels, Wireless Access Points, VoIP Phones

and IP Surveillance cameras. The settings may be adjusted to improve throughput, data prioritization and

security with the user-friendly Browser-Based Configuration Pages.

Common Application

The NXA-ENET8POE is a cost-effective solution that brings continuous availability, network security, and an

easy management interface for customers who are looking to migrate from unmanaged to managed networks.

It is perfect for homes and businesses. PoE capabilities enable one Ethernet cable to deliver both data and

power devices such as AMX Touch Panels, WAPs and VoIP phones.

Features

Gigabit Ethernet Switch - Gigabit switching capacity significantly improves the performance of a

network's backbone delivering the throughput needed to support a broad range of advanced

network applications and reduce file transfer times.

Multiple 10/100/1000 Base-T Ports - supports three different transfer rates on the same port and

auto-selects the best speed and duplex supported by both connected devices for maximum data

throughput.

Provides Power over Ethernet - can deliver maximum power up to 15.4W for 4 ports or 7.5W

simultaneously for 8 ports over twisted pair cable up to 100 meters.

Simplified Set-Up - The embedded web interface is user-friendly and enables users to quickly and

simply configure the NXA-ENET8POE.

Comprehensive Quality of Service - Four queues per port enable differentiated management of up

to four traffic types - traffic is prioritized providing optimal performance for real-time applications

such as voice and video.

Enhanced Security Features - IEEE 802.1X port-based access control ensures all users are

authorized before being granted network access, plus user authentication can be managed using a

RADIUS server.

Power Management Capabilities - the NXA-ENET8POE can auto-detect powered devices and

power consumption, cutting power to ports with devices that have been powered off and

prioritization of ports to ensure power to important devices is retained if the power demand exceeds

the maximum power supply.

Supports IGMP Snooping - The NXA-ENET8POE supports multicast video for solutions such as

AMX Vision².

Send Signals Extreme Distances - The NXA-ENET8POE can send data over fiber for distances to

70 kilometers depending on the cable type using the shared RJ-45/SFP combo port.

Fanless Design - Fewer moving parts reduces potential failures and runs more quietly.

The NXA-ENET8POE is not for use with MVP-9000i docking stations, including the

MVP-TDS-9 and MVP-WDS-9. For more information on MVP-9000i docking stations,

please visit www.amx.com.

NXA-ENET8POE Gigabit PoE Ethernet Switch

FIG. 1 NXA-ENET8POE Gigabit PoE Ethernet Switch

NXA-ENET8POE Specifications

Dimensions (HWD): 1.7" x 13" x 8" (4.4 cm x 33 cm x 20.3 cm)

Weight:

4 lbs. (1.8 kg)

Power Requirements:

Power consumption: • 165W maximum (full PoE load)

Voltage: • 100-240V

• 50-60Hz

• 1.5 A

Current: • 0.75 A @ 110 VAC

• 1.5 A @ 220 VAC

Power Over Ethernet Input

Voltage:

• 48 V DC

Maximum output power 70

• 15.4 W for any four ports simultaneously

• Port 1 can provide 25 W

Maximum output current

per port:

• 350 mA DC

• Port 1 can reach: 565 mA DC

• Output Voltage: 44 - 57 V DC

Maximum output current

per port:

• 350 mA DC

Front Panel Components:

Power LED: Green LED indicates unit is powered.

PoE LEDs: Amber LEDs indicate device connected to port and receiving power.

LINK/ACT LEDs: • Amber LEDs indicate device connected to port.

• Blinking amber LEDs indicate data transmission between switch and

connected device.

Ports: Eight 10/100/1000BaseT RJ-45 ports.

SFP transceiver slot: RJ45 port allowing SPF transceiver communication.

Status LED: Green LED indicates SFP connection.

Rear Panel Components:

Power input: 1 120-240 VAC 3-prong power supply socket.

(rear)

(front)

Power LED

PoE LEDs

Link/ACT LEDs

PoE Ports

Status LED

120-240 VAC input

SFP transceiver slot

NXA-ENET8POE Gigabit PoE Ethernet Switch

NXA-ENET8POE Architecture

The NXA-ENET8POE employs a wire-speed, non-blocking switching fabric. This permits simultaneous wire-

speed transport of multiple packets at low latency on all ports. The device also features full-duplex capability

on all ports, which effectively doubles the bandwidth of each connection.

The NXA-ENET8POE uses store-and-forward switching to ensure maximum data integrity. With store-and-

forward switching, the entire packet must be received into a buffer and checked for validity before being

forwarded. This prevents errors from being propagated throughout the network.

Power-over-Ethernet Capability

The NXA-ENET8POE’s eight 10/100/1000 Mbps ports support the IEEE 802.3af Power-over-Ethernet (PoE)

standard that enables DC power to be supplied to attached devices using wires in the connecting Ethernet

cable. Any 802.3af compliant device attached to a port can directly draw power from the switch over the

Ethernet cable without requiring its own separate power source. This capability gives network administrators

centralized power control for devices such as IP phones and wireless access points, which translates into

greater network availability.

For each attached 802.3af-compliant device, the switch automatically senses the load and dynamically

supplies the required power. Independent overload and short-circuit protection for each port allows the switch

to automatically shut down a port’s power when limits are exceeded. Port 1 on the switch can provide up to 25

W of power to an attached device at the standard 48 DC voltage. Ports 2-8 can provide up to 15.4 W of power.

NXA-ENET8POE Specifications (Cont.)

Operating Environment: • Operating temperature: 32° F to 113° F (0° C to 45° C)

• Non-operating temperature: -40° F to 158° F

(-40° C to 70° C)

• Max. relative humidity: 90% (Non-condensing)

Certifications: • FCC part 15 Class A

•CE

• UL Listed (US and Canada)

•RoHS

• CISPR Class A

• VCCI (Pending)

• C-TICK (Pending)

Other AMX Equipment: • NXA-WAP1000 Smart Wireless Access Point, US Operation (FG2255-51)

• NXA-WAP1000 Smart Wireless Access Point, Operation Outside US

(FG2255-53)

• NXA-WAPZD1000 Wireless LAN Zone Director, US Operation (FG2255-52)

• NXA-WAPZD1000 Wireless LAN Zone Director, Includes EU Power Adapter

for use in Europe (except UK), Chile, Egypt, Indonesia, Pakistan, Saudi

Arabia (except Dharan), Vietnam (FG2255-54K)

• NXA-WAPZD1000 Wireless LAN Zone Director, Includes AU Power Adapter

for use in Australia and New Zealand (FG2255-55K)

• NXA-WAPZD1000 Wireless LAN Zone Director, Includes China AU style

CCC certified Power Adapter for use in China (FG2255-56K)

• NXA-WAPZD1000 Wireless LAN Zone Director, Includes India Power

Adapter (FG2255-57K)

• NXA-WAPZD1000 Wireless LAN Zone Director, Includes Korea Power

Adapter (FG2255-58K)

• NXA-WAPZD1000 Wireless LAN Zone Director, Includes UK Power Adapter

for use in the United Kingdom, Hong Kong, Malaysia, Singapore, and United

Arab Emirates (UAE) (FG2255-59K)

• NXA-WAPZD1000 Wireless LAN Zone Director, Includes US Power Adapter

with 110 and 220 power input for use in Brazil, Philippines, Saudi Arabia

(Dharan), Taiwan, Thailand, Uruguay (FG2255-60K)

NXA-ENET8POE Gigabit PoE Ethernet Switch

10/100/1000BASE-T Ports

The switch contains eight RJ-45 ports that operate at 10 Mbps or 100 Mbps, half or full duplex, or at 1000

Mbps, full duplex. Because all ports on the switch support automatic MDI/MDI-X operation, you can use

straight-through cables for all network connections to PCs or servers, or to other switches or hubs.

Each of these ports support auto-negotiation, so the optimum transmission mode (half or full duplex), and data

rate (10, 100, or 1000 Mbps) can be selected automatically. If a device connected to one of these ports does not

support auto-negotiation, the communication mode of that port can be configured manually.

SFP Slot

The Small Form Factor Pluggable (SFP) transceiver slot is shared with RJ-45 Port 8. If an SFP transceiver

(purchased separately) is installed in the slot and has a valid link on its port, the associated RJ-45 port is

disabled and cannot be used.

Port and Power Status LEDs

The NXA-ENET8POE includes a display panel (FIG. 1) for key system and port indications that simplify

installation and network troubleshooting.

Power Supply Socket

The power socket is located on the rear panel of the NXA-ENET8POE (FIG. 1). The standard power socket is

for the AC power cord.

Network Planning

NXA-ENET8POE Gigabit PoE Ethernet Switch

Network Planning

Introduction To Switching

A network switch allows simultaneous transmission of multiple packets via non-crossbar switching. This

means that it can partition a network more efficiently than bridges or routers. The switch has, therefore, been

recognized as one of the most important building blocks for today’s networking technology. When

performance bottlenecks are caused by congestion at the network access point (such as the network card for a

high-volume file server), the device experiencing congestion (server, power user or hub) can be attached

directly to a switched port. By using full-duplex mode, the bandwidth of the dedicated

segment can be doubled to maximize throughput.

When networks are based on repeater (hub) technology, the distance between end stations is limited by a

maximum hop count. However, a switch turns the hop count back to zero. Subdividing the network into

smaller and more manageable segments, and linking them to the larger network by means of a switch, removes

this limitation.

A switch can be easily configured in any Ethernet, Fast Ethernet, or Gigabit Ethernet network to significantly

boost bandwidth while using conventional cabling and network cards.

Application Examples

The switch is not only designed to segment your network, but also to provide a wide range of options in setting

up network connections. Some typical applications are described below.

Supplying PoE

The NXA-ENET8POE is an excellent choice for supplying power to connected PoE devices such as web

cameras, IP telephones or access points. You can easily connect a PoE device to a switch port and allow power

to be supplied over the connecting cable. Each of the eight ports on the NXA-ENET8POE can provide power

to a connected device.

In the example below (FIG. 2), the device is supplying power to three PoE devices. It is also providing

dedicated 100 Mbps full-duplex data connections to the devices. In addition, other non-PoE devices can be

connected to the device.

Collapsed Backbone

The NXA-ENET8POE is an excellent choice for mixed Ethernet, Fast Ethernet, and Gigabit Ethernet

installations where significant growth is expected in the near future. In a basic stand-alone configuration, it can

provide direct full-duplex connections for up to eight workstations or servers. You can easily build on this

basic configuration, adding direct full-duplex connections to workstations or servers. When the time comes for

further expansion, just connect to another hub or switch using one of the Gigabit Ethernet ports built into the

front panel, or a Gigabit Ethernet port on a plug-in SFP transceiver.

In FIG. 3, the NXA-ENET8POE is operating as a collapsed backbone for a small LAN. It is providing

dedicated 10 Mbps full-duplex connections to workstations, 100 Mbps full-duplex connections to power users,

and 1 Gbps full-duplex connections to servers. In addition, connected IP phones and wireless access points are

receiving PoE power from the device.

FIG. 2 PoE Connections

Power-over-Ethernet Devices

Web Camera

IP Telephone

Access Point

Network Planning

NXA-ENET8POE Gigabit PoE Ethernet Switch

Meeting Room

With eight 1000 Mbps parallel bridging ports (i.e., eight distinct collision domains), the NXA-ENET8POE can

function as an efficient bridged node that is ideal for a meeting room environment. Zero noise makes the

switch unobtrusive for such a setting.

In FIG. 4, the ES4308-PoE is connected to a central wiring closet via a 1000BASE-SX connection. The

1000BASE-T RJ-45 ports on the switch are providing 10/100 Mbps full-duplex connections for PCs and

notebooks, as well as providing power and connectivity for PoE devices, such as IP telephones and web

cameras.

Making VLAN Connections

The NXA-ENET8POE supports VLANs that can be used to organize any group of network nodes into separate

broadcast domains (FIG. 5). VLANs confine broadcast traffic to the originating group, and can eliminate

broadcast storms in large networks. This provides a more secure and cleaner network environment.

VLANs can be based on untagged port groups, or traffic can be explicitly tagged to identify the VLAN group

to which it belongs. Untagged VLANs can be used for small networks attached to a single switch. However,

tagged VLANs should be used for larger networks, and all the VLANs assigned to the inter-switch links.

FIG. 3 Collapsed Backbone

FIG. 4 Meeting Room

Servers

1000 Mbps

Full Duplex

Network Segment

100 Mbps

Full Duplex

Workstations

100 Mbps

Full Duplex

Power-over-Ethernet Devices

10/100 Mbps

Full Duplex

Standard LAN

PoE

Server Farm

Wiring Closet

NXA-ENET8POE

10/100 Mbps Segments

Standard LAN

PoE

Computer

Web

Camera

Telephone

Network Planning

NXA-ENET8POE Gigabit PoE Ethernet Switch

Application Notes

1. Full-duplex operation only applies to point-to-point access (such as when a switch is attached to a

workstation, server or another switch). When the switch is connected to a hub, both devices must operate

in half-duplex mode.

2. For network applications that require routing between dissimilar network types, you can attach the switch

directly to a multi-protocol router.

3. As a general rule, the length of fiber optic cable for a single switched link should not exceed:

1000BASE-SX: 550 m (1805 ft) for multimode fiber

1000BASE-LX: 5 km (3.1 miles) for single-mode fiber

1000BASE-LH: 70 km (43 miles) for single-mode fiber

However, power budget constraints must also be considered when calculating the maximum cable length for

your specific environment.

FIG. 5 Making VLAN Connections

R&D

VLAN 1

VLAN 2

Testing

VLAN 3

Finance

Marketing

VLAN 4

Finance

VLAN 3

VLAN

aware

switch

Tagged

Ports

Untagged Ports

VLAN

unaware

switch

Tagged Port

R&D

VLAN 1

VLAN 2

Testing

When connecting to a switch that does not support IEEE 802.1Q VLAN tags, use

untagged ports.

Network Planning

NXA-ENET8POE Gigabit PoE Ethernet Switch

Installing the NXA-ENET8POE

Selecting a Site

The NXA-ENET8POE can be mounted in a standard 19-inch equipment rack or on a flat surface. Be sure to

follow the guidelines below when choosing a location. The site should:

Be at the center of all the devices you want to link and near a power outlet.

Be able to maintain its temperature within 0 to 45 °C (32 to 113 °F) and its humidity within 10% to

90%, non-condensing

Provide adequate space (approximately five centimeters or two inches) on all sides for proper air

flow

Be accessible for installing, cabling and maintaining the devices

Allow the status LEDs to be clearly visible

Make sure twisted-pair cable is always routed away from power lines, fluorescent lighting fixtures

and other sources of electrical interference, such as radios and transmitters.

Make sure that the unit is connected to a separate grounded power outlet that provides 100 to 240

VAC, 50 to 60 Hz, is within 2 m (6.6 feet) of each device and is powered from an independent

circuit breaker. As with any equipment, using a filter or surge suppressor is recommended.

Ethernet Cabling

To ensure proper operation when installing the NXA-ENET8POE into a network, make sure that the current

cables are suitable for 10BASE-T, 100BASE-TX or 1000BASE-T operation. Check the following criteria

against the current installation of your network:

Cable type: Unshielded twisted pair (UTP) or shielded twisted pair (STP) cables with RJ-45

connectors; Category 3 or better for 10BASE-T, Category 5 or better for 100BASE-TX, and

Category 5, 5e or 6 for 1000BASE-T.

Protection from radio frequency interference emissions

Electrical surge suppression

Separation of electrical wires (switch related or other) and electromagnetic fields from data based

network wiring

Safe connections with no damaged cables, connectors or shields

Installing an Optional SFP Transceiver

The NXA-ENET8POE supports the following optional transceivers:

1000BASE-SX

1000BASE-LX

1000BASE-LH

To install an SFP transceiver, do the following:

1. Consider network and cabling requirements to select an appropriate transceiver type.

2. Insert the transceiver with the optical connector facing outward and the slot connector facing down. Note

that SFP transceivers are keyed so they can only be installed in one orientation.

3. Slide the transceiver into the slot until it clicks into place.

SFP transceivers are hot-swappable. The NXA-ENET8POE does not need to be

powered off before installing or removing a transceiver. However, always first

disconnect the network cable before removing a transceiver.

If an SFP transceiver is installed in the slot and has a valid link on its port, the

associated RJ-45 port is disabled and cannot be used.

Network Planning

NXA-ENET8POE Gigabit PoE Ethernet Switch

Connecting to a Power Source

To connect a device to a power source:

1. Insert the power cable plug directly into the socket located at the back of the device (FIG. 1).

2. Plug the other end of the cable into a grounded, three-pin, AC power source.

3. Check the front-panel LEDs as the device is powered on to be sure the Power LED is on. If not, check that

the power cable is correctly plugged in.

For international use, you may need to change the AC line cord. You must use a line

cord set that has been approved for the socket type in your country.

Network Planning

NXA-ENET8POE Gigabit PoE Ethernet Switch

Making Network Connections

Connecting Network Devices

The NXA-ENET8POE is designed to interconnect multiple segments (or collision domains). It can be

connected to network cards in PCs and servers, as well as to hubs, switches or routers. It may also be

connected to devices using optional SFP transceivers.

If 802.3af-compliant PoE devices are connected to the switch’s 10/100 Mbps ports, the NXA-ENET8POE

automatically supplies the required power.

Twisted-Pair Devices

Each device requires an unshielded twisted-pair (UTP) cable with RJ-45 connectors at both ends. Use

Category 5, 5e or 6 cable for 1000BASE-T connections, Category 5 or better for 100BASE-TX connections,

and Category 3 or better for 10BASE-T connections.

Power-over-Ethernet Connections

The NXA-ENET8POE automatically detects an 802.3af-compliant device by its authenticated PoE signature

and senses its required load before turning on DC power to the port. This detection mechanism prevents

damage to other network equipment that is not 802.3af complaint.

The NXA-ENET8POE delivers power to a device using wire pairs in the connecting Ethernet cable. The

switch can provide up to 15.4 W of power continuously on each 10/100 Mbps port. However, taking into

account some power loss over the cable run, the amount of power that can be delivered to a terminal device is

12.95 W. If a device draws more than 15.4 W, from a port, an overload condition occurs and the port

turns off the power.

The NXA-ENET8POE controls the power and data on a port independently. Power can be requested from a

device that already has a data link to the switch. Also, the switch can supply power to a device even if the

port’s data connection has been disabled. The power on a port is continuously monitored by the switch and it

will be turned off as soon as a device connection is removed.

Cabling Guidelines

The RJ-45 ports on the switch support automatic MDI/MDI-X pinout configuration, so you can use standard

straight-through twisted-pair cables to connect to any other network device (PCs, servers, switches, routers, or

hubs).

Connecting to PCs, Servers, Hubs and Switches

To connect the NXA-ENET8POE to individual PCs, servers, hubs, and switches:

1. Attach one end of a twisted-pair cable segment to the device’s RJ-45 connector.

2. If the device is a PC card and the switch is in the wiring closet, attach the other end of the cable segment

to a modular wall outlet that is connected to the wiring closet. Otherwise, attach the other end to an

available port on the NXA-ENET8POE. Make sure each twisted pair cable does not exceed 100 meters

(328 ft) in length.

3. As each connection is made, the Link LED (on the switch) corresponding to each port turns on to indicate

that the connection is valid.

Network Wiring Connections

The punch-down block is an integral part of many newer equipment racks. It is actually part of the patch panel.

Instructions for making connections in the wiring closet with this type of equipment follows:

1. Attach one end of a patch cable to an available port on the switch, and the other end to the patch panel.

Power-over-Ethernet connections work with all existing Category 3, 4, 5, 5e or 6

network cabling, including patch cables and patch-panels, outlets, and other

connecting hardware, without requiring modification.

Do not plug a phone jack connector into an RJ-45 port. This will damage the switch.

Use only twisted-pair cables with RJ-45 connectors that conform to FCC standards.

Network Planning

NXA-ENET8POE Gigabit PoE Ethernet Switch

2. If not already in place, attach one end of a cable segment to the back of the patch panel where the punch-

down block is located, and the other end to a modular wall outlet.

3. Label the cables to simplify future troubleshooting.

Fiber Optic SFP Devices

An optional Gigabit SFP transceiver (1000BASE-SX, 1000BASE-LX or 1000BASE-LH) can be used for a

backbone connection between switches, or for connecting to a high-speed server. Each single-mode fiber port

requires 9/125 micron single-mode fiber optic cable with an LC connector at both ends. Each multimode fiber

optic port requires 50/125 or 62.5/125 micron multimode fiber optic cabling with an LC connector at both

ends.

1. Remove and keep the LC port’s rubber cover. When not connected to a fiber cable, the rubber cover

should be replaced to protect the optics.

2. Check that the fiber terminators are clean. You can clean the cable plugs by wiping them gently with a

clean tissue or cotton ball moistened with alcohol. Dirty fiber terminators on fiber cables will impair the

quality of the light transmitted through the cable and lead to degraded performance on the port.

3. Connect one end of the cable to the LC port on the switch and the other end to the LC port on the other

device (FIG. 6). Since LC connectors are keyed, the cable can be attached in only one orientation.

4. As a connection is made, check the Link LED on the switch corresponding to the port to be sure that the

connection is valid.

The 1000BASE-SX, 1000BASE-LX and 1000BASE-LH fiber optic ports operate at 1 Gbps full duplex. The

maximum length for fiber optic cable operating at Gigabit speed will depend on the fiber type.

The NXA-ENET8POE use lasers to transmit signals over fiber optic cable. The lasers

are compliant with the requirements of a Class 1 Laser Product and are inherently

eye-safe in normal operation. However, you should never look directly at a transmit

port when it is powered on.

When selecting a fiber SFP device, considering safety, please make sure that it can

function at a temperature that is not less than the recommended maximum

operational temperature of the product. You must also use an approved Laser Class

1 SFP transceiver.

FIG. 6 Making Connections to SFP Transceivers

If an SFP transceiver is installed in the slot and has a valid link on its port, the

associated RJ-45 port is disabled and cannot be used.

Network Planning

NXA-ENET8POE Gigabit PoE Ethernet Switch

Connectivity Rules

When adding hubs (repeaters) to your network, please follow the connectivity rules listed in the manuals for

these products. However, note that because switches break up the path for connected devices into separate

collision domains, you should not include the switch or connected cabling in your calculations for cascade

length involving other devices.

1000BASE-T Cable Requirements

All Category 5 UTP cables that are used for 100BASE-TX connections should also work for 1000BASE-T,

providing that all four wire pairs are connected. However, it is recommended that for all critical connections,

or any new cable installations, Category 5e (enhanced Category 5) or Category 6 cable should be used. The

Category 5e specification includes test parameters that are only recommendations for Category 5. Therefore,

the first step in preparing existing Category 5 cabling for running 1000BASE-T is a simple test of the cable

installation to be sure that it complies with the IEEE 802.3-2005 standards.

1000 Mbps Gigabit Ethernet Collision Domain

100 Mbps Fast Ethernet Collision Domain

10 Mbps Ethernet Collision Domain

Maximum 1000BASE-T Gigabit Ethernet Cable Length

Cable Type Maximum Cable Length Connector

Category 5, 5e, 6 100-ohm UTP or STP 100 m (328 ft) RJ-45

Maximum 1000BASE-SX Fiber Optic Cable Length

Fiber Diameter Fiber Bandwidth Cable Length Range Connector

62.5/125 micron multimode fiber (MMF) 160 MHz/km 2-220 m (7-722 ft) LC

200 MHz/km 2-275 m (7-902 ft) LC

50/125 micron multimode fiber (MMF) 400 MHz/km 2-500 m (7-1641 ft) LC

500 MHz/km 2-550 m (7-1805 ft) LC

Maximum 1000BASE-LX Fiber Optic Cable Length

Fiber Diameter Fiber Bandwidth Cable Length Range Connector

9/125 micron single-mode fiber N/A 2 m - 5 km (7 ft - 3.2 miles) LC

Maximum 1000BASE-LH Fiber Optic Cable Length

Fiber Diameter Fiber Bandwidth Cable Length Range Connector

9/125 micron single-mode fiber N/A 2 m - 70 km (7 ft - 43 miles) LC

Maximum Fast Ethernet Cable Length

Type Cable Type Maximum Cable Length Connector

100BASE-TX Category 5 or better 100-ohm UTP or

STP

100 m (328 ft) RJ-45

Maximum Ethernet Cable Length

Type Cable Type Maximum Cable Length Connector

10BASE-T Categories 3, 4, 5 or better 100-ohm UTP 100 m (328 ft) RJ-45

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AMX NXA-ENET8POE Specification

Brand: AMX

Model: NXA-ENET8POE

Category: Network switches

Type: Specification

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AMX NXA-ENET8POE Specification

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