User Manual

Chapter 7 ● Installing modules
116 Release 2.0, 910056 Rev01d
Installing a Timing Frequency Unit
This procedure explains how to install a Timing Frequency Unit (TFU) module.
Be sure you have read and understood Understanding the module installation process
on page 104 before
continuing.
Requirements
•ESD wrist strap
• Slotted screwdriver
Procedure
1. Locate the slot into which you will install the TFU module.
The primary TFU installs in slot 2. The redundant TFU installs in slot 6.
See Understanding module slot numbering
on page 11 for more information.
WRIST
STRAP
Wear an ESD strap and plug it into the ESD jack in the AIU when
handling modules or equipment damage can occur. See Figure 9
on page 18.
CAUTION
Ensure that you install the TFU module into the proper slot (either
slot 2 or slot 6). Installation into a slot reserved for a different
module type can cause equipment damage.