PM5364 pmc-sierra, PM5364 Datasheet - Page 262

• Manufacturer Part Number: PM5364
• Description: Tupp 2488 Assp Telecom Standard
• Manufacturer: pmc-sierra

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
TRAD is arranged in the same order as the outgoing tributaries. This order is identical to the
TPOH output sequence as shown in Table 47. Timeslot assignment on TRAD is unrelated to the
configuration of the tributary group. The timeslots for 4 tributaries are always reserved for any
tributary group even if it is configured for TU12, VT3 or TU2. For timeslots devoted to non-
existent tributaries, for example, tributaries 2, 3 and 4 of a TUG2 configured for TU2, TRAD
will be set low. Note that the TRAD timeslots and TPOH timeslots are not aligned.
Similarly, TOHFP identifies the beginning of a frame and it is asserted during the B1 bit of the
first tributary on TRAD. The alarm signals for all tributaries are output twice per multi-frame.
However, the TRAD is updated only once per multi-frame. The tributary alarm signals are
repeated once. The timing diagram of the TRAD signals with non-TU3 tributary and when
TRAD_BIPE_SEL = ‘0’ is shown in Figure 73. The timing diagram of the TRAD signals with
TU3 tributary and when TRAD_BIPE_SEL = ‘0’ is shown in Figure 74.
Figure 73 Alarm Signal (TRAD) with non-TU3 Tributary (TRAD_BIPE_SEL = ‘0’)
Figure 74 Alarm Signal (TRAD) with TU3 Tributary (TRAD_BIPE_SEL = ‘0’)
The timing diagram of the TRAD signals with no TU3 tributary and when TRAD_BIPE_SEL =
‘1’ is shown in Figure 75. The timing diagram of the TRAD signals with TU3 tributary and
when TRAD_BIPE_SEL = ‘1’ is shown in Figure 76.
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
Released
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