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CHAPTER 5
Troubleshooting and Maintenance
This chapter provides recommended procedures for maintenance of VMG-14+ system components.
Troubleshooting advice and Imagine Communications Customer Support information is also included
in this chapter.
In This Chapter:
"Hot Swap Indicators,"
•
"Handling Application Modules-Live System" on page
•
"DC Power Servicing" on page
•
"AC PSU Servicing" on page
•
"Shelf Control Manager Servicing" on page
•
"Fan Tray Servicing" on page 64
•
"Fan Filter Tray Servicing" on page
•
"FRU Reference" on page
•
"If You Need Assistance" on page
•
Warning!
Static electricity can harm delicate components inside the chassis. You must wear an ESD
wrist strap exchanging any part or electrical component. Connect your ESD strap to the ESD
jack at the rear of the VMG-14+ chassis.
Hot Swap Indicators
Before removing or servicing modules on a live system, it is important to notice current swap-readiness
of the module, as indicated by the Hot Swap LED at the front panel of the module. During operations,
the Hot Swap LED remains Off until the ejector levers are opened. After opening the levers, you should
wait until the Hot Swap LED becomes solid blue before extracting the module from the system.
Table 18
lists the LED information important for hot swaps of the VMG modules.
Table 18.
Hot Swap LED
State
Off
Solid Blue
Long-blink
Short-blink
TM
Selenio
VMG-14+ Hardware Setup Guide
next.
62.
63.
64.
65.
66.
66.
Description
The shelf manager is not ready to be removed/disconnected from the
chassis.
The shelf manager is ready to be removed/disconnected from the
chassis.
The shelf manager is activating.
Deactivation in progress.
61.
60
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