3Com 10BASE-2 (BNC Manuale di installazione - Pagina 5

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To seat the module, ﬁrmly push the module forward to engage the module

and backplane connectors. You will feel a slight resistance as the connectors

engage.

CAUTION: If the resistance is too great, the module and backplane connec-

tors may not be aligned. Forcing the module forward could damage the

board or backplane connectors. If necessary, remove and reinsert the

module, ensuring that the connectors are properly aligned. You should not

have to seat the module by tightening the captive screws.

Tighten the captive screws to secure the module in the chassis.

Once the module is installed, see Chapter 4: Cabling the System in your

Getting Started guide for information on cabling the module to the network.

Option Module

Module diagnostics run at power up or when replacing a module with the

Diagnostics

power on. During diagnostics, the module's port status Error LEDs are lit

yellow. When diagnostics are successfully completed, the port status Active

LEDs turn green for those ports that are cabled. If any port status Error LEDs

remain yellow, the port is not operational. If the module's Board Error LED

is lit yellow, the module has failed a diagnostic test. To troubleshoot module

failures see Chapter 7: Troubleshooting the System in your Getting Started

guide .