4. Install the RJ-11 port blank.
Install the communication board
Prerequisites
• Before you perform this procedure, make sure that you have a No. 2 Phillips screwdriver available.
• Before installing the hardware option, make sure that you understand the following warning and caution.
WARNING:
To reduce the risk of personal injury from hot surfaces, allow the drives and the internal system
components to cool before touching them.
30 Install the communication board