Installation Guide
NXA-ENET24 PoE Fast Ethernet Switch
For more detailed installation, configuration, programming, and operating instructions,
refer to the NXA-ENET24 Hardware Installation and Software Management Guides
Port Status LEDs (Cont.)
1~24
(PoE
Mode)
On Green
Powered device is connected, but not drawing
power.
Overview
Flashing Green
Flashing Amber
Powered device is receiving power.
The NXA-ENET24 PoE Fast Ethernet switch is specifically designed to protect the
video streams coming from AMX’s MAX units to the Audio Video Modules (AVM).
Standard switches will reduce bandwidth from all applications when there is heavy
data traffic passing through the switch. For streaming audio and video applications this
will cause skipping and jitter in the audio and video feeds. This is unacceptable for
AMX’s applications. As a result, AMX has designed the NXA-ENET24 PoE to protect
the A/V streams when heavy data traffic occurs. Bandwidth is reduced from other
applications such as file transfer, e-mail and web surfing only when heavy data traffic
events occur.
The NXA-ENET24 PoE also provides a full range of features for Layer 2 switching. It
includes a management agent that allows you to configure the features listed in the
products manual. The default configuration can be used for most of the features
provided by this switch. However, there are many options that you could configure to
maximize the switch’s performance for your particular network environment.
The NXA-ENET24 PoE’s 24 10/100 Mbps ports support the IEEE 802.3af Power-over-
Ethernet (PoE) that enables DC power to be supplied to attached devices over the
unused pairs of wires in the connecting Ethernet cable.
Port has detected a power overload or short circuit
and shut down the port’s power.
On Amber
The power budget for the switch has been
exceeded and the port's power shut down.
Alternate Green/ Port has been disabled by the administrator.
Amber
Off
No powered device is connected to the port.
System Status LEDs
LED
Condition
On Green
Off
Status
PWR
Unit’s internal power supply is operating normally.
Unit has no power connected.
Description of Hardware
The NXA-ENET24 PoE Fast Ethernet switch measures 17.32 x 16.14 x 1.69 inches
(44.0 x 41.0 x 4.3 cm). (See FIG. 1)
Diag
On Green
Flashing Green
On Amber
Flashing Amber
System diagnostic test successfully completed.
System diagnostic test is in progress.
System diagnostic test has detected a fault.
Cannot receive packet from stacking port.
Alternate Green/ Fan has failed or the unit has over-heated.
Amber
FIG. 1 The NXA-ENET24 PoE Fast Ethernet switch
Stacking On Green
Flashing Green
This switch is acting as the master unit in the stack.
Initial state of stacking configuration to determine
whether the switch will act as a master or slave unit.
10/100BASE-T Ports
The switch base unit contains 24 10BASE-T/100BASE-TX RJ-45 ports. All ports
support automatic MDI/MDI-X operation, so 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 or 100 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.
On Amber
On Green
On Green
This switch is acting as a slave unit in the stack.
LED display mode is Link/Act.
Link/Act
PoE
LED display mode is PoE.
Combination Ports
Each port also supports IEEE 802.3x auto-negotiation of flow control, so the switch
can automatically prevent port buffers from becoming saturated.
25-26
(Link/
On/Flashing
Amber
Port has established a valid 10/100 Mbps network
connection.
Activity)
Flashing indicates activity.
1000BASE-T/SFP Ports
These are combination Gigabit RJ-45 ports with alternate Small Form Factor
Pluggable (SFP) transceiver slots. If an SFP transceiver (purchased separately) is
installed in a slot and has a valid link on the port, the associated RJ-45 port is disabled.
The 1000BASE-T RJ-45 ports support automatic MDI/MDI-X operation, so you can
use straight-through cables for all network connections to PCs or servers, or to other
switches or hubs.
On/Flashing
Green
Port has established a valid 1000 Mbps network
connection. Flashing indicates activity.
Off
There is no valid link on the port.
Stack Master Button
The 1000BASE-T RJ-45 ports do not support PoE capability.
The Stack Master button enables one switch in the stack to be selected as the master.
Seven other switches can be stacked together and they should be placed in "Slave"
mode. When operating in a stand-alone configuration the switch should be in "Master"
mode.
Port and System Status LEDs
The LEDs, which are located on the front panel for easy viewing, are described in the
following tables.
The port status LEDs have two display modes; Link and PoE. The Link mode displays
the link status and network activity on each port. The PoE mode displays the PoE
power status on each port. Use the Mode Link/PoE button on the front panel to toggle
between the two display modes. The current mode is indicated by the Link/Act and
Mode PoE/Link Button
The Mode PoE/Link button is located on the front panel.
The Mode PoE/Link button is used to toggle between the two port status LED display
modes. Pressing this button changes from one display mode to the other. The default
display mode is Link/Act mode.
PoE system LEDs.
Power Supply Receptacle
The standard power receptacle is for the AC power cord. It is located on the rear panel
of the switch.
Port Status LEDs
LED
Condition
Status
1~24
(Link/Act
Mode)
On/Flashing
Green
Port has established a valid 100 Mbps network
connection. Flashing indicates activity.
MAX A/V Network
The switch is an excellent choice for mixed AMX equipment such as PoE enabled
NXA-WAP 200 G wireless access points, and non-PoE devices such as AVMs,
Breakout Boxes and MAX. You can easily build on this basic configuration, adding
direct full-duplex connections to AVMs, Breakout Boxes and WAPs. When the time
comes for further expansion, just connect to another hub or switch via one of the
switch’s Fast Ethernet or Gigabit Ethernet ports.
On/Flashing
Amber
Port has established a valid 10 Mbps network con-
nection. Flashing indicates activity.
Alternate Green/ Port has been disabled by the administrator.
Amber
The switch automatically identifies the devices requirements, i.e., power for the
WAP200G and network priority for MAX streams to the AVMs so no configuration is
required by the installer.
Off
There is no valid link on the port.
