zxGponONTSerialNum

The serial number is unique for each ONT. 
The first four bytes are the ASCII encoded vendor ID four letter mnemonic.
The second four bytes are a binary encoded 'serial number', under the complete control 
of the vendor in question.
Upon autonomous instantiation, this attribute consists of four spaces and four null characters.(8 bytes)

MIB

ZXGPON-ONTMGMT-MIB

OID

.1.3.6.1.4.1.3902.1012.3.50.11.2.1.3

Type

column

Access

readonly

Status

current

Parent

zxGponONTEntry