JDS Uniphase SKB Series User Manual page 57

42 Commands
STATUS?
Query the status register value
Description
NA
Parameters
NA
Parameter
Description
Command packet
OPCODE Length
0x02 0x00
Response packet
OPCODE Length
0x82 0x01
Bit 7
Function ERR
R/W R
Initial value 0
ERR (ERROR, bit 7)--This bit indicates that an error code has been written to the error queue. It is
cleared when the error queue is cleared. The light emitting diode produces a red light if this bit is set.
EQO (ERROR QUEUE OVERFLOW, bit 6)--This bit indicates that more than eight errors have
occurred and the error queue has overflowed. It is cleared when the error queue is read at least once
and can hold another error code.
ALRM (ALARM, bit 5)--This bit indicates that a bit in the alarm register is set. It is cleared when the
alarm register is cleared. The light emitting diode produces an amber light if this bit is set.
OPP (OPERATION IN PROGRESS, bit 4)--This bit indicates that a critical operation is in process. It
is cleared when the operation is complete.
In the absence of alarm or error condition, the light emitting diode stays
Note:
green.In the presence of both these conditions, the light emitting diode reports the
error condition by turning red.
U8 Status_reg
Status_reg (unsigned eight-bit)--Current binary value of the Module Status
Register (MSR), as indicated in the following table.
6 5
EQO ALRM
R R
0 0
Parameters
Parameters
4 3
OPP
R R
0 0
2 1 0
R R R
0 0 0