MT9074
Advance Information
Bit Name
Functional Description
Bit Name
Functional Description
7 - PD4 - Peak Detector Voltage Levels.
7
RIU1 Receive International Use 1. This
bit is received on the PCM 30 2048
kbit/sec. link in bit position one of the
non-frame alignment signal. It is used
for CRC-4 multiframe alignment or
international use.
3
PD0 These five bits indicate the level of the
received signal AMI pulses.
PD4 PD3 PD2 PD1 PD0
Line Attenuation
less than 4dB
3-8dB
0
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
0
8-14dB
14-20dB
6
RNFAB Receive Non-frame Alignment Bit.
This bit is received on the PCM 30
2048 kbit/sec. link in bit position two
of the non-frame alignment signal.
This bit should be one in order to
more than 20dB
2
LLOS LIU Loss of Signal indication. This
bit will be high if the received signal is
below the threshold selected by ELOS
(page 2, address 10H) for a period of
at least 1 msec. This bit will be low for
normal operation.
differentiate
between
frame
alignment frames and non-frame
alignment frames.
5
RALM Receive Alarm. This bit is received
on the PCM 30 2048 kbit/sec. link in
bit position three (the A bit) of the
non-frame alignment signal. It is used
as a remote alarm indication (RAI)
from the far end of the PCM 30 link (1
- alarm, 0 - normal).
1-0
- - - Unused
Table 109 - Receive Signal Status Word
(Page 3, Address 16H) (E1)
Bit Name
Functional Description
4-0 RNU4-8 Receive National Use Four to
Eight. These bits are received on the
PCM 30 2048 kbit/sec. link in bit
positions four to eight (the Sa bits) of
the non-frame alignment signal.
7
JACS Jitter Attenuated Clock Slow. If one it
indicates that the dejittered clock
period is increased by 1/16 UI. If zero
the clock is at normal speed.
Table 111 - Receive Non-Frame Alignment
Signal
6
JACF Jitter Attenuated Clock Fast. If one it
indicates that the dejittered clock
period is decreased by 1/16 UI. If zero
the clock is at normal speed.
(Page 3, Address 18H) (E1)
5
4
JAE Jitter Attenuator FIFO Empty. If one it
indicates that the JA FIFO is empty.
JAF4 Jitter Attenuator FIFO with 4 Full
Locations. If one it indicates that the
JA FIFO has at least 4 full locations.
3
2
JAFC Jitter Attenuator Center Full. If one it
indicates that the JA FIFO is at least
half full.
JAE4 Jitter Attenuator FIFO with 4 Empty
Locations. If one it indicates that the
JA FIFO has at most 4 empty locations.
1
0
JAF Jitter Attenuator FIFO Full. If one it
indicates that the JA FIFO is full.
- - - Unused.
Table 110 - Jitter Attenuator Status Word
(Page 3, Address 17H) (E1)
86
MITEL [ MITEL NETWORKS CORPORATION ]
