Aruba JL742A User manual

Aruba JL742A Cable Guard Installation
Instructions
Aruba JL742A Cable Guard Installation Instructions
For the latest release of hardware and software documentation for Aruba switches and accessories, visit the
Aruba Support Portal at the following link: https://asp.arubanetworks.com/downloads.
Applicable products
Aruba JL742A Cable Guard
Use this guide to assist in the basic installation of the Aruba JL742A Cable Guard on select Aruba 12-
port switches.
nJL679A Aruba 6100 12G CL4 2SFP+ 139W Swch
nJL693A 2930F 12G PoE+ 2G/2SFP+ Swch
nR8N88A Aruba 6000 12G CL4 2SFP 139W Swch
Installation Instructions
The Aruba JL742A Cable Guard is an accessory to select Aruba 12-port networking switches. This accessory
mounts to the front of the switch to help stabilize and support the networking cables. It also provides extra
security for the switch and its cables. To determine if this accessory is supported on your Aruba 12–port
switch, see the mounting instructions in the Start Here Guide and the Installation and Getting Started Guide
for your switch, or contact your authorized Aruba Networks representative.
nBefore you begin to install the Aruba JL742A Cable Guard, see the Quick Setup guide for your switch model for
power-on self test steps, important installation precautions, and safety and regulatory information.
The switch drawings in this document are for reference only and may not match your particular switch model.
Copyright 2022, Hewlett Packard Enterprise LP
Part Number:
Published: April 2022
Edition: 1

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Aruba 12-port fanless warm product and other mounting
information
nIf you are mounting an Aruba 12-port fanless switch in a rack with other products, the preferred position for
the switch is at the base of the rack (for optimal cooling), or below as many of the other products as can be
accommodated, while still ensuring that the installation precautions regarding weight distribution shown
below are observed.
nWhen mounted in a rack, ensure that a 2U vertical rack space exists between the Aruba 12-port fanless
switch and the device above it.
nAvoid obstructing the ventilation holes on the top, sides, and back of the switch.
nDo not install an Aruba 12-port fanless switch in a confined space that does not allow a free air flow.
nWhen installing the switch in an enclosed space containing free air flow, ensure that any adjacent surfaces
are at least 15.3cm (6 inches) from the sides and back of the switch.

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Installation Precautions
nThe rack or cabinet should be adequately secured to prevent it from becoming unstable and/or falling over.
nDevices installed in a rack or cabinet should be mounted as low as possible, with the heaviest devices at the
bottom and progressively lighter devices installed above.
nDo not ship any switch in a rack without checking for restrictions in the Installation and Getting Started Guide
for your switch model. Otherwise, you may void the switch warranty. (Find more documentation for your
switch model in the Aruba Support Portal.)
nEnsure the power source circuits are properly grounded, then use the power cord supplied with the switch to
connect to the power source.
nUse only approved power cords with your Aruba Networks product. See the power cord information in the
Quick Setup Guide and Safety/RegulatoryInformation document shipped with your switch. In it you will find a
listing of acceptable power cords that are appropriate for your switch. Failure to use approved power cords
can result in personal injury, product damage, and may void your product warranty.
nIf your installation requires a different power cord than the one supplied for the switch, be sure the cord is
adequately sized for the current requirements. In addition, be sure to use a power cord displaying the mark of
the safety agency that defines the regulations for power cords in your country. The mark is your assurance
that the power cord can be used safely with your switch.
nWhen installing the switch, the AC outlet should be near the switch and should be easily accessible in case the
switch must be powered off.
nDo not install the switch in an environment where the operating ambient temperature exceeds its
specification. See the safety and regulatory information in the Quick Setup Guide and Safety/Regulatory
Information document shipped with your switch.
nEnsure the power cord for the switch does not overload the power circuits, wiring, and over-current
protection. To determine the possibility of overloading the supply circuits, add together the ampere ratings of
all devices installed on the same circuit as the switch and compare the total with the rating limit for the circuit.
The maximum ampere ratings are usually printed on the devices, near the power connectors.
nFor a wall-mounted Aruba 12-port fanless switch, face the network ports down, left, or right . Do not wall-
mount the switch with the network ports facing up (away from the floor).
nDo not install an Aruba 12-port fanless switch in an environment where the operating ambient temperature
might exceed its specification. When mounting the switch in a rack, ensure that a 2U vertical space is left for
cooling between the switch and the device above it, and at least 15.3 cm (6 inches) of space around the sides
and back of the switch. When mounted in a fully enclosed rack or cabinet, ensure that the air flow for cooling
around the top, sides, and back of the switch is not restricted. Installing an Aruba 12-port fanless switch in an
enclosed, confined space such as a small bookshelf or unventilated cabinet is not recommended.

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Installing an Aruba JL742ACable Guard on a 12-port switch
This section provides the steps for installing the Aruba JL742A Cable Guard on a 12-port switches. To find detailed
switch installation steps, information on configuration tools, and other instructions and information, see the latest
Installation and Getting Started Guide for your switch.
NOTE: If you plan to mount the switch on a wall or under a horizontal surface, you will need to provide four
5/8–inch number 12 wood screws.
Prepare for installation
1. Unpack and check included parts:
a. Cable guard faceplate
b. Cable guard faceplate brackets
c. 10mm M4 screws
2. Ensure that the switch and the power cord is not connected to a power source.
3. Remove any data or console cables that are connected to the switch.
4. (Optional) Insert transceivers.
NOTE: To ensure proper operation of your switch, use only genuine HPE Aruba SFP/SFP+ transceivers
supported by your switch. For more information on using transceivers, see either the Quick Setup Guide and
Safety/Regulatory Information booklet included with your switch, or the Installation and Getting Started
Guide for your switch at the Aruba Support Portal.
NOTE: The switch can be mounted in a rack or wall position using either the forward side-screw holes or the
center side screw holes. However, to improve balance and stability, using the center side-screw holes is
recommended in the following instances:
nUnder-table mounting

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1 Center side-screw holes
2 Forward side-screw holes
Mounting an Aruba 12-port fanless switch with the optional cable
guard
Supported mounting options for Aruba 12-port fanless switches include:
nTabletop or desktop mounting
nRack mounting
nWall or under-table mount
Tabletop or desktop mounting
1. Fasten the cable guard faceplate mounting brackets to the forward side-screw holes on each side of
the switch.

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2. Feed the network cables through the cable guard faceplate.
3. Connect the cables to the desired RJ-45 ports and any (optional) install transceivers.
4. Attach the cable guard faceplate to the faceplate mounting brackets and place the switch on a secure
tabletop or desktop surface.

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Rack mounting
1. Install the mounting brackets (included with the switch) and the faceplate mounting brackets, with
the rack mount brackets positioned over the faceplate mounting brackets.
2. Secure the mounting brackets to a two-post rack.

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3. Feed the network cables through the cable guard faceplate and connect them to the desired RJ-45
ports and any (optional) installed transceivers.
4. Attach the cable guard faceplate to the faceplate mounting brackets.
Wall mounting

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1. Attach the cable guard brackets.
2.
NOTE: Depending on the degree of difficulty you encounter in mounting the switch on or under a
table, you may want to delay attaching the network cables and faceplate to the switch until after you
complete Step 5.
Feed the the network cables through the cable guard faceplate.

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3. Connect the cables to the desired RJ-45 ports and any (optional) installed transceivers.
4. Secure the faceplate to the cable guard brackets.
5. Install the short mounting brackets (included with the switch) in the center side-screw holes.
NOTE: For a wall-mounting position, you can also install the short mounting brackets using the
forward side-screw holes.

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Under-table mounting
1. Attach the cable guard brackets.
2. Feed the network cables through the cable guard faceplate.

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NOTE: Depending on the degree of difficulty you encounter in mounting the switch on awall or
under a table, you may want to delay attaching the network cables and faceplate to the switch until
after you complete Step 5 and Step 6.
3. Connect the cables to the desired RJ-45 ports and any (optional) installed transceivers.

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4. Secure the faceplate to the cable guard brackets.
5. Install the long mounting brackets (included with the switch) in the center side-screw holes.
6. Secure the switch to the wall or under-table location using four 5/8–inch number 12 wood screws
(not included).

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Switch network access with the JL742A Cable Guard attached
When installed, the cable guard blocks access to the switch console ports. However, you can access the
switch through the network, as described in this section. By factory default, the switch automatically obtains
its IP network configuration from a DHCP or BootP server. After the switch, with a cable guard installed, is
placed on the network, you can determine its assigned IP address by inspecting your DHCP/BootP server or
by using LLDP through the Command Line Interface on a directly connected, neighbor switch.
Obtaining an IP network configuration with the cable guard attached
show lldp
info remote
port_#
For the specified port on the ArubaOS-Switch neighbor, lists the IP address and other data for the dir-
ectly connected switch (where port_# is the port used on the neighbor switch to access the directly
connected ArubaOS-Switch you are setting up).
show lldp
info remote
all
Lists IP address and other data on all active ports on the neighbor switch.
NOTE: LLDP operation on non-Aruba neighbors may differ from the above
descriptions. See the software documentation provided with the neighbor switch.
You can also configure the switch through a console port connection prior to attaching the optional cable
guard. For this case, connect a PC (with suitable terminal emulation software) to the switch using a micro-
USB console cable (not included with the switch). For more information on configuring and remotely
managing your switch, see the documentation for your switch model at the Aruba Support Portal.
For further information
Refer to the Quick Setup Guide and Safety/Regulatory Information document shipped with your Aruba 12-
port fanless switch for further information on these topics:
nSFP/SFP+installation notes
nSwitch operating system software
nPower cords
nSafety and compliance information
nSwitch regulatory information and statements

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