Agilent Technologies HDMP-3001 User Manual
Page 57
57
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit name TX_J0[0]_[7:0]
•
•
•
TX_J0[15]_[7:0]
R/W
R/W
Value
0
0
0
0
0
0
0
0
after
reset
ADDR=0x09F –0x0AE: Transmit J0 Bytes 1 – 16
Bits 7-0: TX_J0[0:15]_[7:0]: Transmit J0 (Section Trace) – When enable, the HDMP-3001 will
continuously transmit in the 16-byte pattern in these registers in the J0 byte. The bytes are
transmitted in descending order starting from TX_J0[15]_[7:0].
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit name
TEST_K2[7:0]
R/W
R/W
Value
0
0
0
0
0
0
0
0
after
reset
ADDR=0x0B0: Transmit K2 Byte
TX_K2[7:3]:
These bits are automatic protection switching (APS) signaling.
TX_K2[2:0]:
These bits are controlled by 3 sources. In order of priority, these are:
If TX_LAIS is set, they are transmitted as 111.
If LRDI_INH is cleared, and if any of (RX_LOS and not RX_LOS_INH), RX_LOF, or RX_LAIS
is set, they are transmitted as 110 for a min. of 20 frames.
Else, they are transmitted as TX_K2[2:0]
In SDH, the three LSBs of the K2 byte are used as an AIS or Remote Defect Indication(RDI)
at the line/MS level.
In SONET, the three LSBs of K2 are used as APS signaling.