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T4000 PIC Description

 

PICs provide the physical connection to various network media types, receiving incoming packets from the network and transmitting outgoing packets to the network. During this process, each PIC performs framing and line-speed signaling for its media type. Before transmitting outgoing data packets, the PICs encapsulate the packets received from the FPCs. Each PIC is equipped with an ASIC that performs control functions specific to the media type of that PIC.

The router supports various PICs, including ATM, Ethernet, and SONET/SDH interfaces. Blank PICs resemble other PICs but do not provide any physical connection or activity. When a slot is not occupied by a PIC, you must insert a blank PIC to fill the empty slot and ensure proper cooling of the system.

PICs are hot-removable and hot-insertable. Type 1 and Type 2 PICs have captive screws at their upper and lower corners. Type 3 PICs have an upper ejector handle and a lower captive screw. Type 4 and Type 5 PICs have an upper ejector handle and a lower ejector handle. Table 1 indicates the number of PICs supported by each FPC.

Table 1: Number of PICs Supported in Each FPC

FPC Name

FPC Model Number

Maximum Number of PICs

Enhanced Scaling FPC1

T640-FPC1-ES

4

Enhanced Scaling FPC2

T640-FPC2-ES

4

Enhanced Scaling FPC3

T640-FPC3-ES

4

T1600 Enhanced Scaling FPC4

T1600-FPC4-ES

2

Enhanced Scaling FPC4-1P

T640-FPC4-1P-ES

Note: T640-FPC4-ES is not supported.

1

T4000 FPC5

T4000-FPC5-3D

2

T4000 FPC5

T4000-FPC5-LSR

2