This chapter prepares
you to install your ASA, and contains the following sections:
Be sure to read the
Regulatory Compliance and
Safety Information document before installing the ASA.
Take note of the
Read the installation instructions before connecting the system to the power source.
Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units.
Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals.
During this procedure, wear grounding wrist straps to avoid ESD damage to the card. Do not directly touch the backplane with your hand or any metal tool, or you could shock yourself.
This product requires short-circuit (overcurrent) protection to be provided as part of the building installation. Install only in accordance with national and local wiring regulations.
To avoid electric
shock, do not connect safety extra-low voltage (SELV) circuits to
telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and
WAN ports contain TNV circuits. Some LAN and WAN ports both use RJ-45
connectors. Use caution when connecting cables.
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available.
Ultimate disposal of this product should be handled according to all national laws and regulations.
Installation of the equipment must comply with local and national electrical codes.
The device is designed to work with TN power systems.
Use the information in
the following sections to help ensure your safety and to protect the chassis.
This information may not address all potentially hazardous situations in your
working environment, so be alert and exercise good judgment at all times.
Observe these safety
Keep the area
clear and dust-free before, during, and after installation.
Keep tools away
from walkways, where you and others might trip over them.
Do not wear loose
clothing or jewelry, such as earrings, bracelets, or chains that could get
caught in the chassis.
glasses if you are working under any conditions that might be hazardous to your
Do not perform any
action that creates a potential hazard to people or makes the equipment unsafe.
Never attempt to
lift an object that is too heavy for one person.
Maintain Safety with
Before working on a
chassis, be sure the power cord is unplugged.
guidelines when working on equipment powered by electricity:
procedures that require access to the interior of the chassis, locate the
emergency power-off switch for the room in which you are working. Then, if an
electrical accident occurs, you can act quickly to turn off the power.
Do not work alone
if potentially hazardous conditions exist anywhere in your work space.
Never assume that
power is disconnected; always check.
for possible hazards in your work area, such as moist floors, ungrounded power
extension cables, frayed power cords, and missing safety grounds.
If an electrical
do not become a victim yourself.
power from the system.
send another person to get medical aid. Otherwise, assess the condition of the
victim, and then call for help.
whether the person needs rescue breathing or external cardiac compressions;
then take appropriate action.
Use the chassis
within its marked electrical ratings and product usage instructions.
The ASA 5508-X and
the ASA 5516-X are equipped with an AC-input power supply, which is shipped
with a three-wire electrical cord with a grounding-type plug that fits into a
grounding-type power outlet only. Do not circumvent this safety feature.
Equipment grounding should comply with local and national electrical codes.
Electrostatic Discharge Damage
discharge (ESD) occurs when electronic components are improperly handled, and
it can damage equipment and impair electrical circuitry, resulting in
intermittent or complete failure.
ESD-prevention procedures when removing and replacing components. Ensure that
the chassis is electrically connected to an earth ground. Wear an
ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect
the grounding clip to an unpainted surface of the chassis frame to safely
ground ESD voltages. To properly guard against ESD damage and shocks, the wrist
strap and cord must operate effectively. If no wrist strap is available, ground
yourself by touching the metal part of the chassis.
periodically check the resistance value of the antistatic strap, which should
be between one and 10 megohms.
You can place the chassis on a desktop or in a rack. The
location of the chassis and the layout of the equipment rack or wiring room are
extremely important for proper system operation. Placing equipment too close
together with inadequate ventilation and inaccessible panels can cause system
malfunctions and shutdowns. Improper placement can also make it difficult for
you to access the chassis for maintenance.
Hardware Specifications for information about physical
When planning the
site layout and equipment locations, consider the information in the next
section to help avoid equipment failures and reduce the possibility of
environmentally caused shutdowns. If you are currently experiencing shutdowns
or unusually high error rates with your existing equipment, these
considerations may help you isolate the cause of failures and prevent future
following helps you plan an acceptable operating environment for the chassis,
and avoid environmentally caused equipment failures.
equipment generates heat. Ambient air temperature might not be adequate to cool
equipment to acceptable operating temperatures without adequate circulation.
Ensure that the room in which you operate your system has adequate air
Ensure that the
chassis cover is secure. The chassis is designed to allow cooling air to flow
effectively within it. An open chassis allows air leaks, which may interrupt
and redirect the flow of cooling air from the internal components.
Always follow the
ESD-prevention procedures described previously to avoid damage to equipment.
Damage from static discharge can cause immediate or intermittent equipment
When installing the
chassis, consider the following:
Check the power
at the site before installing the chassis to ensure that it is “clean” (free of
spikes and noise). Install a power conditioner, if necessary, to ensure proper
voltages and power levels in the appliance input voltage.
grounding for the site to avoid damage from lightning and power surges.
The chassis does
not have a user-selectable operating range. Refer to the label on the chassis
for the correct appliance input-power requirement.
uninterruptible power source for your site, if possible.
Consider the following
when planning an equipment-rack configuration:
If you are
mounting a chassis in an open rack, make sure that the rack frame does not
block the intake or exhaust ports.
Be sure enclosed
racks have adequate ventilation. Make sure that the rack is not overly
congested as each chassis generates heat. An enclosed rack should have louvered
sides and a fan to provide cooling air.
In an enclosed
rack with a ventilation fan in the top, heat generated by equipment near the
bottom of the rack can be drawn upward and into the intake ports of the
equipment above it in the rack. Ensure that you provide adequate ventilation
for equipment at the bottom of the rack.
Baffles can help
to isolate exhaust air from intake air, which also helps to draw cooling air
through the chassis. The best placement of the baffles depends on the airflow
patterns in the rack. Experiment with different arrangements to position the