Vanguard Managed Solutions Vanguard 7300 Series - Manual (Page 81)

Vanguard 7300 Installation 3-7
How to Choose a Site
Thermal Considerations
Introduction This section describes some of the heat and temperature factors that can affect your
Vanguard 7300 Series router.
Fan After the unit is installed, power it up to be sure the fans are working properly.
Inlet Temperature After the unit is running, check the ambient air temperature. Make sure it does not
exceed the operating temperature limits specified in Appendix A.
• The components of the system require an input air temperature of 5º C to 40º
C (41º F to 104º F)
• Operation between 40º C and 50º C (104º F and 122º F) is permitted for
intervals less than 96 hours
Note
On the Vanguard 7300 Version 2 Series routers, do not block the air intake
located on the left side of the chassis, or the exhaust air outlet located at the rear
right side.
Thermal Shutdown If a Vanguard 7300 Series router is not properly cooled, the power supply overheats
and shuts down, a process called thermal shutdown. The power supply remains off
until it cools, after which it automatically comes back on again.
Thermal shutdown occurs when the internal Vanguard 7300 temperature is too high.
Overheating can occur due to any of these conditions:
• Blocked vents
• Insufficient clearance around the unit
• Air inlet temperatures exceeds the operating limits
After the unit cools, it automatically powers on again. However, the unit continues to
shut down automatically until the problem is corrected.
Electrostatic Discharge Precautions
Antistatic
Precautions Vanguard Managed Solutions recommends that you use an antistatic wrist strap and
a conductive foam pad when installing or upgrading the system. Electronic
components such as card and modules can be extremely sensitive to Electrostatic
Discharge (ESD). After removing the component from the chassis or its protective
wrapper, place the component flat on a grounded, static-free surface; and, in the case
of a card, component-side up. Do not slide the components over any surface.
If an ESD station is not available, you can avoid damage resulting from ESD by
wearing an antistatic wrist strap. Wrap one end of a wrist grounding strap around
your wrist. Attach the grounding end (usually a piece of copper foil or an alligator
clip) to an electrical ground. An electrical ground can be a piece of metal that
literally runs into the ground (such as an unpainted metal pipe) or a metal part of a
grounded electrical appliance.