T4000 Component Serial Number Locations
Most components have a small serial number ID label attached to the component body. For example, many components have a rectangular serial number label as shown in Figure 1.

CIP Serial Number Label
The serial number label is located at the top of the left side of the CIP (see Figure 2).

Control Board Serial Number Label
The LCC-CB serial number is located on the lower right side of the control board (see Figure 3).

Craft Interface Serial Number Label

FPC Serial Number Label
The location of the serial number label varies depending on the FPC:
T1600 Type 4 FPCs: located on the lower right side
T4000 Type 5 FPCs: located on the upper middle.
Figure 5 shows the serial number location for a T1600 Type 4 FPC.

Figure 6 shows the serial number location for a T4000 Type 5 FPC.

PIC Serial Number Label
The exact location serial number label is different on different PICs, depending on the placement of components on the PIC board. In this example, the serial number label is located on the right side of the PIC (see Figure 7), when the PIC is vertically oriented (as it would be installed in the router).

Power Supply Serial Number Label
For the DC power supply, the serial number label is located on the lower left side of the faceplate. (see Figure 8).

Routing Engine Serial Number Label
The serial number label is located on the left side (see Figure 9).

SCG Serial Number Label
The serial number is located on the top of the SCG, close to the midplane connector (see Figure 10).
Although the illustration shows the SCG with DB-9 ports, the serial number location is the same for the SCG with RJ-48 ports.

SIB Serial Number Label
The serial number is located on the right side behind the faceplate (see Figure 11).
