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Product Serial Number Location
You may need your product serial number when calling the Technical Assistance Center (TAC).
Figure 1 shows the serial number location for the Cisco 2801 router. The label is located on the rear of the chassis, at the bottom
edge, near the lower left corner.
Figure 1 Serial Number Label Location for Cisco 2801 Router
Figure 2 shows the serial number location for the Cisco 2811 router. The label is located on the rear of the chassis, near the top
right corner, to the left of the CLEI label.
Figure 2 Serial Number Label Location for Cisco 2811 Router
Figure 3 shows the serial number location for the Cisco 2821 router and the Cisco 2851 router. The label is located on the rear
of the chassis, near the top right corner, below the CLEI label.
Figure 3 Serial Number Label Location for Cisco 2821 Router and Cisco 2851 Router
117342 781-00286-01
SN: AAANNNNXXXX
SN: AAANNNNXXXX
103962 781-00287-01
A= ACT
FE 0/1
PVDM1 PVDM0 AIM1 AIM0
FE 0/0
S= SPEED
A= FDX
A= LINK
A
F
S
L
A
F
S
L
S
L
O
T
2
S
L
O
T
0
S
L
O
T
3
S
L
O
T
1
ENM0
SN: AAANNNNXXXX
103963 781-00288-01
A= ACT
FE 0/1
PVDM2PVDM1 PVDM0 AIM1 AIM0
FE 0/0
S= SPEED
A= FDX
A= LINK
A
F
S
L
A
F
S
L
SN: AAANNNNXXXX
SN: AAANNNNXXXX