Cisco SFP Serial Number

Cisco Catalyst 3750
# show inventory

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NAME: "2", DESCR: "WS-C3750G-48TS"
PID: WS-C3750G-48TS-S  , VID: V04  , SN: FCZ1426714X

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Cisco Catalyst 6500
# show idprom interface gi1/2/1
...
Extended ID Fields
 Options           : Loss of Signal implemented TX_DISABLE is implemented and disables the serial output
 BR, max           : Unspecified 0%
 BR, min           : Unspecified 0%
 Vendor SN         : FNS14070RCT
 Date code         : 100212
 CC_EXT            : 0xEC
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