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USB considerations for factory supplied and converted VSP 4000 switches
Warning:
The USB FLASH drive on all models of VSP 4850 (factory built and converted from ERS 4850) must be
treated as a permanent non-removable part of the switch and must NEVER be removed from the
switch to ensure proper operation. Additionally, the USB cover must be installed to ensure additional
protection against removal. The USB FLASH drive on the VSP 4850 switch is uniquely and
permanently bound to the operating system of the switch it is first used on and cannot be transferred to
a different switch. Removal (and reinsertion) of the USB FLASH drive from the switch is not supported
as it can permanently compromise the switch functionality and render it non-functional.
On a converted VSP 4000 switch, you can also use the CLI to perform a conversion back to the
ERS 4850.
For the conversion to be successful, you must ensure that you have satisfied the hardware and
software criteria on the system being converted. For more information, see ERS 4850 to VSP 4000
Quick Conversion.
Electrostatic discharge
This section provides information and procedures to prevent electrostatic discharge during
installation.
Preventing electrostatic discharge damage
Electrostatic discharge (ESD) is a discharge of stored static electricity that can damage equipment
and impair electrical circuitry. Electrostatic voltages can result from friction including, pulling cabling
through conduits, walking across carpeted areas, and building static charge in clothing. When you
improperly handle electronic components, ESD damage occurs and can result in complete or
intermittent failures. While networking equipment is commonly designed and tested to withstand
common mode ESD events, voltage can sometimes discharge to some connector pins, which can
potentially damage the networking equipment.
Caution:
To protect the VSP 4000 against ESD damage, take the following measures before you connect
data cables to the device:
• Always use antistatic wrist straps. Make sure you adjust the strap to provide good skin
contact.
• Ensure that you properly ground work surfaces and equipment racks for protection against
electrostatic discharge. You must connect the common point to the building ground wire. In
a properly wired building, the nearest reliable ground is typically at the electrical outlet.
August 2018
Installing Virtual Services Platform 4850GTS Series
Electrostatic discharge
19
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