HARD_ERR in 52UXCH, OSN 8800

Hi, everybody.

I need your support about to HARD_ERR alarm with the next parameters:

Location Information:
0-Master Shelf-10-52UXCH-OTHER
Additional Information:
 Alarm Parameter II(hex) 0x15 0xff 0x00 0xff 0xff 0x01

I was verifying the support information but the parameter 2 and 3 do not match with anything.

Parameter Description
Parameter 1 Indicates the type of the alarmed fault. For example:
0x01: The power supply module is abnormal.
0x02: The board is not properly installed (the board is not in good contact
with the backplane, for example, the board is not secured).
0x03: 38M system clock 1 is abnormal.
0x04: 38M system clock 2 is abnormal.
0x05: The 2M clock source is abnormal.
0x06: The digital phase-locked loop (PLL) is abnormal.
0x07: The 38M service clock is lost.
0x08: The bus is abnormal.
0x09: The standby board under TPS protection is abnormal.
0x0a: The active crystal oscillator of the clock stops.
0x0b: The frequency deviation of the crystal oscillator is excessively large.
0x0c: The standby crystal oscillator of the clock stops.
0x0d: The CPU/DSP/coprocessor fails.
0x0e: The memory component the fails.
0x0f: The component of the programmable logic device fails.
0x10: The SDH component fails.
0x11: The data communication component fails.
0x12: The clock component fails.
0x13: The interface component fails.
0x14: The power component fails.
0x15: Other faults occur.
0x16: The simulated PLL is abnormal.
0x17: The 32M clock is invalid.
0x18: The 66M clock is invalid.
0x19: The 25M clock is invalid.
0x1a: The loop of the cross-connect chip fails.
0x1b: The 8k online signal is pulled down.
0x1c: The chip of the probe laser fails.
0x1d: The chip of the loading laser fails.
0x1e: The clock of the DSP driver chip is lost.
0x1f: The output clock of the DSP is lost.
0x20: The RTM module is offline.
0x21: A chip fails.
0x22: 2M system frame header 1 fails.
0x23: 2M system frame header 2 fails.
0x24: The self-check fails.
0x25: The self-check of the PHY chip fails.
0x26: Detecting the port status of the PHY chip fails.
0x27: The 25M clock is lost.
0x28: The APD fails.
Parameters 2
and 3
When parameter 1 is 0x08, bus A is abnormal if parameter 2 is 0x01 and bus
B is abnormal if parameter 2 is 0x02. Parameter 3 is 0xff.
When parameter 1 is 0x06, 0x0d, 0x0e, 0x0f, 0x12, 0x13, 0x14, 0x16, 0x19,
or 0x21, parameters 2 and 3 have different values, which indicate different
component, module, or chip faults.
When parameter 1 is 0x15, a fault occurs on other components of the local
board, on other boards, or on other components of other boards.
l For a clock board, parameters 0x15 0x0b 0x00 indicate that the ejector
lever is not properly closed or the micro switch is faulty, and therefore
the switchover between the active and standby clock boards may fail.
l For a WSS board, parameters 0x15 0x10 0xff indicate that the board does
not have the parameter table file or the incorrect parameter table file is
loaded; parameters 0x15 0x11 0xff indicate absence of board software.
l For an OTU board, parameters 0x15 0x05 0x00 and 0x15 0x05 0x01
indicate that the received backplane serial broadcast information is
incorrect; parameters 0x15 0x04 0x00 indicate that the subrack ID parsed
from the backplane broadcast information is inconsistent with the
subrack ID reserved during the board startup.
When parameter 1 is of another value, parameters 2 and 3 are fixed at 0xff.