Preliminary Information
MT9076
Bit
Name
Functional Description
7-4 RMAI1-4 Receive Multiframe Alignment Bits One to Four. These bits are received on the PCM
30 2048 kbit/sec. link in bit positions one to four of time slot 16 of frame zero of every
signaling multiframe. These bit should be 0000 for proper signaling multiframe alignment.
3
X1
Receive Spare Bit X1. This bit is received on the PCM 30 2048 kbit/sec. link in bit position
five of time slot 16 of frame zero of every signaling multiframe.
2
Y
Receive Y-bit. This bit is received on the PCM 30 2048 kbit/sec. link in bit position six of
time slot 16 of frame zero of every signaling multiframe. The Y bit may indicate loss of
multiframe alignment at the remote end (1 -loss of multiframe alignment; 0 - multiframe
alignment acquired).
1-0
X2, X3 Receive Spare Bits X2 and X3. These bits are received on the PCM 30 2048 kbit/sec. link
in bit positions seven and eight respectively, of time slot 16 of frame zero of every
signaling multiframe.
Table 127 - Receive Multiframe Alignment Signal
(Page 3, Address 19H) (E1)
Bit
Name
Functional Description
7
Sa5
Sa 5 Bit. The Sa5 bit is latched and reported here upon receipt of the eighth of
consecutive instance of a new Sa6 nibble.
6
5
CSa6nibble Changed Sa6 Nibble. This bit changes state upon detection of a change of state of
incoming Sa6 nibbles.
C8Sa6
CSa6
Changed Eight Sa6 Bit. This bit toggles upon receipt of the eighth of consecutive
instance of a new Sa6 nibble.
4
Changed Sa6 Bit. This bit toggles in the event of a change of state in the received Sa6
bit.
3 - 0
RxSa 3-0 Receive Sa Nibble Three to Zero. This register contains the contents of the last Sa6
nibble received. It is updated upon receipt of the eighth of consecutive instance of a
new Sa6 nibble.
Table 128 - Sa Bits Report Word
(Page 3, Address 1AH) (E1)
115
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