3com 3012 (3C13612) User Manual

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The equipment room is dust-proof

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Adequate temperature and humidity conditions prevail

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The operator wears the ESD-preventive wrist strap, ESD-preventive gloves and 
ESD-preventive clothes while handling the circuit board.

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The dismantled circuit board is placed upward on the ESD preventive 
workbench, or put into an ESD preventive bag.

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You avoid direct contact with the elements of the circuit board.

To prevent damage by electromagnetic discharge, do the following:

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Take effective measures against electrical net interference for the power supply 
system.

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Separate the working ground of the router from the grounding device of the 
power equipment, or thunder proof grounding.

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Keep the router away from wireless launchers, radar launchers and other high 
frequency and high current equipment.

To minimize the risk of lightning damage do the following:

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Install a lightning arrester on the input end of a telephone cable, ISDN line or 
T1/E1 line.

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Ensure that the PGND wire of the chassis is well grounded

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Ensure that the neutral point of the socket of AC power supply is well 
grounded

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Install a lightning arrester at the input end of the power supply

Whether you install the router in a rack or place it directly on the workbench, it is 
necessary to ensure that:

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Airflow is not restricted around the router.

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The cabinet and workbench are strong enough to support the weight of the 
router and other installation accessories.

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The cabinet and workbench are well grounded. 

After you verify that the installation conditions comply with these requirements, 
open the packing case of the router and check the contents against the your order 
contract. Contact your Service representative if you find any discrepancies.

To install your router, you will need:

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Tools

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Phillips screwdriver

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Flat-head screwdriver

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ESD-preventive wrist strap and ESD-preventive gloves

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Flat-blade screws (used in wall mounting)

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Cables