Ethernet cabling, Mounting, Desktop or shelf mounting – AMX NXA-ENET24 User Manual

Page 2: Connecting to a power source, Twisted-pair devices, Cabling guidelines

For full warranty information, refer to the AMX Instruction Manual(s) associated with your Product(s).

11/06

AMX reserves the right to alter specifications without notice at any time.

3000 RESEARCH DRIVE, RICHARDSON, TX 75082 • 800.222.0193 • fax 469.624.7153 • technical support 800.932.6993 • www.amx.com

93-2178-60

REV: A

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 2.44 m (8 feet) of each device
• 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 switch into a network, make
sure that the current cables are suitable for 10BASE-T, 100BASE-TX or 1000
Base-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 and
Category 5 or better for 100BASE-TX and 1000 Base-T.

• Protection from radio frequency interference emissions
• Electrical surge suppression
• Separation of electrical wires (switch related or other) and electromag-

netic fields from data based network wiring

• Safe connections with no damaged cables, connectors or shields

Mounting

This switch can be mounted in a standard 19-inch equipment rack or on a
desktop or shelf. Mounting instructions for each type of site follow. Consult the
NXA-ENET24 Hardware Installation Guide, Installing The Switch for
information on installing the switch into a rack.

Desktop or Shelf Mounting

Attach the four adhesive feet to the bottom of the first switch.

Set the device on a flat surface near an AC power source, making sure
there are at least two inches of space on all sides for proper air flow.

If installing a single switch only, go to “Connecting to a Power Source” at
the end of this chapter.

If installing multiple switches, attach four adhesive feet to each one. Place
each device squarely on top of the one below, in any order.

Connecting to a Power Source

To connect a switch to a power source:

Insert the power cable plug directly into the AC receptacle located at the
back of the switch.

Plug the other end of the cable into a grounded, 3-pin socket, AC power
source.

Note: 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 receptacle type in your
country.

Check the front-panel LEDs as the device is powered on to be sure the
PWR LED is lit. If not, check that the power cable is correctly plugged in.

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.

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).
Caution: Do not plug a normal 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.

Connecting to MAX, AVM, WAPs, Breakout Boxes, Servers,
Hubs and Switches

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

If the device is a network card and the switch is in the wiring closet, attach
the other end of the cable segment to a modular wall outlet that is con-
nected to the wiring closet. (See “Network Wiring Connections” on page
25.) Otherwise, attach the other end to an available port on the switch.

• Make sure each twisted pair cable does not exceed 100 meters (328 ft) in

length.

Note: Avoid using flow control on a port connected to a hub unless it is actually
required to solve a problem. Otherwise back pressure jamming signals may
degrade overall performance for the segment attached to the hub.

As each connection is made, the green Link LED (on the switch) corre-
sponding to each port will light to indicate that the connection is valid.