MT9074
Advance Information
Bit
Name
Functional Description
7 - 4
A(n),
B(n)
C(n),
D(n)
Transmit Signalling Bits for Channel n. When control bit MSN = 1 and RPSIG =
1 this nibble is used. For ESF links these 4 bits are transmitted on the associated
DS1 channel (see table 8) in frames 6, 12, 18 and 24. For D4 links bits A are
transmit on the associated DS1 channel of frame 6 and bits B are transmit on the
associated DS1 channel of frame 12. For D4 links bits C and D are unused.
3 - 0
A(n),
B(n),
C(n),
D(n)
Transmit Signalling Bits for Channel n. When control bit MSN = 0 and RPSIG =
1 this nibble is used. For ESF links these 4 bits are transmitted on the associated
DS1 channel (see table 8) in frames 6, 12, 18 and 24. For D4 links bits A are
transmit on the associated Ds1 channel of frame 6 and bits B are transmit on the
associated DS1 channel of frame 12. For D4 links bits C and D are unused.
Table 73 - T1 / Transmit Channels Usage - CSTi
NOTE: This table illustrates bit mapping on the serial input stream - it does not refer to an internal register.
Per Time Slot Control Words)(Pages 7 and 8) (T1)
The control functions described by Table 75 are repeated for each DS1 time slot. Page 7 addresses 10000 to
11111 correspond to DS1 time slot 1 to 16, while page 8 addresses 10000 to 10111 correspond to time slots
17 to 24. Table 74 illustrates the mapping between the addresses of these pages and the DS1 channel
numbers.
Page 7 Address:
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10 11 12 13 14 15
Equivalent DS1
channel
10 11 12 13 14 15 16
Page 8 Address:
0
1
2
3
4
5
6
7
8
x
9
x
10 11 12 13 14 15
Equivalent DS1
channel
17 18 19 20 21 22 23 24
x
x
x
x
x
x
Table 74 - Pages 7 and 8 Address Mapping to DS1 Channels
66
MITEL [ MITEL NETWORKS CORPORATION ]
