 nmsEponOnuSerialPort | | .1.3.6.1.4.1.3320.101.27 |
 nmsEponOnuSerialPortTable  | mandatory | .1.3.6.1.4.1.3320.101.27.1 |
 nmsEponOnuSerialPortEntry  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1 |
 llidIfIndex  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.1 |
 onuSerialPortDataReadBytes  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.10 |
 onuSerialPortBufferRowStatus  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.11 |
 onuSerialPortKeepaliveMode  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.12 |
 onuSerialPortKeepaliveIdle  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.13 |
 onuSerialPortKeepaliveTimeout  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.14 |
 onuSerialPortKeepaliveProbeCount  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.15 |
 onuSerialPortKeepaliveRowStatus  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.16 |
 onuSerialPortLoopback  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.17 |
 onuSerialPortSeqNo  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.2 |
 onuSerialPortSpeed  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.3 |
 onuSerialPortDataBits  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.4 |
 onuSerialPortHaltBits  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.5 |
 onuSerialPortParity  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.6 |
 onuSerialPortFlowControl  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.7 |
 onuSerialPortPropRowStatus  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.8 |
 onuSerialPortDataReadInterval  | mandatory | .1.3.6.1.4.1.3320.101.27.1.1.9 |