3Com 5500-EI PWR, Reference Manual

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3-8
Field Remarks
TX power low TX power is low.
Module not ready Module is not ready.
APD supply fault APD (Avalanche Photo Diode) supply fault
TEC fault TEC (Thermoelectric Cooler) fault
Wavelength unlocked
Wavelength of optical signal exceeds the
manufacturer’s tolerance.
Temp high Temperature is high.
Temp low Temperature is low.
Voltage high Voltage is high.
Voltage low Voltage is low.
Transceiver info I/O error Transceiver information read and write error
Transceiver info checksum error Transceiver information checksum error
Transceiver type and port configuration
mismatch
Transceiver type does not match port configuration.
Transceiver type not supported by port
hardware
Transceiver type is not supported on the port.
XENPAK
WIS local fault WIS (WAN Interface Sublayer) local fault
Receive optical power fault Receive optical power fault
PMA/PMD receiver local fault
PMA/PMD (Physical Medium Attachment/Physical
Medium Dependent) receiver local fault
PCS receive local fault PCS (Physical Coding Sublayer) receiver local fault
PHY XS receive local fault PHY XS (PHY Extended Sublayer) receive local fault
RX power high RX power is high.
RX power low RX power is low.
Laser bias current fault Laser bias current fault
Laser temperature fault Laser temperature fault
Laser output power fault Laser output power fault
TX fault TX fault
PMA/PMD receiver local fault PMA/PMD receiver local fault
PCS receive local fault PCS receive local fault
PHY XS receive local fault PHY XS receive local fault
TX bias high TX bias current is high.
TX bias low TX bias current is low.
TX power high TX power is high.
TX power low TX power is low.
Temp high Temperature is high.
Temp low Temperature is low.