PM5366-PI PMC-Sierra, Inc., PM5366-PI Datasheet - Page 196

• Manufacturer Part Number: PM5366-PI
• Description: HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER AND M13 MULTIPLEXER
• Manufacturer: PMC-Sierra, Inc.

PRELIMINARY
DATASHEET
PMC-2010672
PROPRIETARY AND CONFIDENTIAL
T1 tributary asynchronous timing is compensated via the V3 octet. T1 tributary
link rate adjustments are optionally passed across the SBI via the V4. T1
tributary alarm conditions are optionally passed across the SBI bus via the link
rate octet in the V4 location.
In synchronous mode, the T1 tributary mapping is fixed to that shown in Table 27
and rate justifications are not possible using the V3 octet. The clock rate
information within the link rate octet in the V4 location is not used in synchronous
mode.
E1 Tributary Mapping
Table 29 shows the format for mapping 63 E1s within the SPE octets. The
timeslots and framing bits within each E1 are easily located within this mapping
for SONET/SDH byte synchronously mapped E1 applications. Unframed E1s
use the exact same format for mapping 63 E1s into the SBI except that the E1
tributaries need not align with the timeslot locations associated with channelized
E1 applications. The V1,V2 and V4 octets are not used to carry E1 data and are
either reserved or used for control information across the interface. When
enabled, the V4 octet carries clock phase information across the SBI. The V1
and V2 octets are unused and should be ignored by devices listening to the SBI
bus. The V5 and R octets do not carry any information and are fixed to a zero
value. The V3 octet carries an E1 data octet but only during rate adjustments as
A17
A21
B13
B17
B21
C13
C17
C21
D13
D17
D21
B1
B5
B9
C1
C5
C9
D1
D5
D9
A18
A22
B10
B14
B18
B22
C10
C14
C18
C22
D10
D14
D18
D22
B2
B6
C2
C6
D2
D6
A19
A23
B15
B19
B23
C11
C15
C19
C23
D11
D15
D19
D23
B11
B3
B7
C3
C7
D3
D7
ISSUE 1
A20
A24
B12
B16
B20
B24
C12
C16
C20
C24
D12
D16
D20
D24
B4
B8
C4
C8
D4
D8
F3
S3
F4
S4
F5
S5
F6
S6
F1
S1
F2
S2
F3
S3
F4
S4
F5
S5
F6
S6
M10
M11
M12
M3
C2
M4
M5
C3
M6
M7
C4
M8
M9
C5
C6
184
F2
F3
F4
F5
F6
00
00
01
01
01
01
01
01
10
10
10
10
10
10
11
11
11
11
11
11
HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER
AND M13 MULTIPLEXER
PM5366 TEMAP-84