Technical Documentation
Related Documentation
T1600 Field-Replaceable Units
Field-replaceable units (FRUs) are router components that can be replaced at the customer site. Replacing most FRUs requires minimal router downtime. The router uses the following types of FRUs:
- Hot-removable and hot-insertable FRUs—You can remove and replace these components without powering off the router or disrupting the routing functions.
- Hot-pluggable FRUs—You can remove and replace these components without powering down the router, but the routing functions of the system are interrupted when the component is removed.
 | Note: Before you replace most host subsystem components, such as a control board or Routing Engine, you must take the host subsystem offline. However, it is not necessary to halt the host subsystem to insert or remove a PC card. You must power off the Routing Engine before replacing a CompactFlash card or solid-state disk in a Routing Engine. |
Table 1 lists the FRUs for the router.
Table 1: Field-Replaceable Units
Hot-Removable and Hot-Insertable FRUs | Hot-Pluggable FRUs |
|---|---|
Air filters Flexible PIC Concentrators (FPCs) Front and rear fan trays PICs Redundant power supplies Master SONET Clock Generators (SCG) Switch Interface Boards (T1600-SIBs or TXP-T1600 SIBs) Backup control board (T-CB or LCC-CB) Master control board (T-CB or LCC-CB) (if nonstop active routing is configured) Backup Routing Engine Master Routing Engine (if nonstop active routing is configured) | Connector Interface Panel (CIP) Nonredundant control boards (T-CB and LCC-CB) Master control board (T-CB or LCC-CB) (if nonstop active routing is not configured) Nonredundant Routing Engine Master Routing Engine (if nonstop active routing is not configured) Master SONET Clock Generator (SCG) Nonredundant SONET Clock Generator (SCG) |
