TTSV02622V2-DB AGERE [Agere Systems], TTSV02622V2-DB Datasheet - Page 29

• Manufacturer Part Number: TTSV02622V2-DB
• Description: STS-24 Backplane Transceiver
• Manufacturer: AGERE [Agere Systems]

June 2003
Agere Systems Inc.
Receiver Block
Pointer Mover Subblock (Backplane to Line)
Rules for Concatenation. The pointer mover block can correctly process any length of concatenation (multiple of
three) as long as it begins on an STS-3 boundary (i.e., STS-1 number 1, 4, 7, 10, etc.) and is contained within the
smaller of STS-3, 12 or 24 (see Table 4).
Table 4. Valid Starting Positions for a STS-MC
Notes:
Y = STS-Mc SPE can start in that STS-1.
NO = STS-Mc SPE cannot start in that STS-1.
— = Y or NO, depending on the particular value of M.
Rules for Pointer Interpretation.
Number
NDF
NRMNBTS (i.e., NDF not set)
CONC pointer
AIS pointer
NORM pointer
STS-1
10
13
16
19
22
1
4
7
N bits in H1 byte = (1001 + single bit error).
STS-3c
offset and N bits are all 1s (SS bits are ignored).
SPE
Y
Y
Y
Y
Y
Y
Y
Y
(N bits in H1 byte = 1001 + single bit error) and offset = 11_1111_1111.
(offset 0—782) and (NDF or NRMNBITS).
(continued)
STS-6c
SPE
NO
NO
Y
Y
Y
Y
Y
Y
N bits in H1 byte = (0110 + single bit error).
STS-9c
SPE
NO
NO
NO
NO
Y
Y
Y
Y
STS-12c
SPE
NO
NO
NO
NO
NO
NO
Y
Y
(continued)
STS-15c
TTSV02622 STS-24 Backplane Transceiver
SPE
Y
Y
Y
Y
Y
Y
Y
Y
STS-18c to STS-24c
SPEs
—
—
—
—
—
—
—
Y
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