參數(shù)資料
型號: MT9079
廠商: Mitel Networks Corporation
英文描述: Advanced Controller for E1(先進的E1幀調(diào)節(jié)器和控制器)
中文描述: 高級控制器素E1(先進的素E1幀調(diào)節(jié)器和控制器)
文件頁數(shù): 35/60頁
文件大小: 347K
代理商: MT9079
MT9079
4-241
Bit
Name
Functional Description
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.
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 dif-
ferentiate 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 of the non-frame
alignment signal. It is used to indicate
an alarm from the remote end of the
PCM 30 link (1 - alarm, 0 - normal).
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 of the non-frame align-
ment signal.
Table 54 - Receive Non-frame Alignment Signal
(Page 3, Address 13H)
Bit
Name
Functional Description
7 - 4
RMA1-4
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 multiframe.
These bit should be 0000 for proper
multiframe alignment.
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
multiframe.
Receive Y-bit Alarm. 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 multi-
frame. It indicates loss of multiframe
alignment at the remote end (1 -loss
of multiframe alignment; 0 - multi-
frame alignment acquired).
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 multi-
frame.
3
X1
2
Y
1 - 0
X2, X3
Table 55 - Receive Multiframe Alignment Signal
(Page 3, Address 14H)
Bit
Name
Functional Description
7
RSLIP
Receive Slip. A change of state (i.e.,
1-to-0 or 0-to-1) indicates that a
receive controlled frame slip has
occurred.
6
RSLPD
Receive Slip Direction. If one, indi-
cates that the last received frame slip
resulted in a repeated frame, i.e.,
system clock (C4i/C2i) faster than
network clock (ECLK). If zero, indi-
cates that the last received frame slip
resulted in a lost frame, i.e., system
clock slower than network clock.
Updated on an RSLIP occurrence
basis.
5
AUXP
Auxiliary Pattern. This bit will go high
when a continuous 101010... bit
stream (Auxiliary Pattern) is received
on the PCM 30 link for a period of at
least 512 bits. If zero, auxiliary pat-
tern is not being received. This pat-
tern will be decoded in the presents
of a bit error rate of as much as 10
-3
.
4
CEFS
Consecutively Errored Frame Align-
ment Signal. This bit goes high when
the last two frame alignment signals
were received in error. This bit will be
low when at least one of the last two
frame alignment signals is without
error.
3
RxFRM
Receive Frame. The most significant
bit of the phase status word. If one,
the phase status word is greater than
one frame in length; if zero, the
phase status word is less than one
frame in length.
2 - 0
RxTS4-2
Receive Time Slot. The three most
significant bits of a five bit counter
that indicates the number of time
slots between the ST-BUS frame
pulse and E8Ko.
Table 56 - Most Significant Phase Status Word
(Page 3, Address 15H)
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