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Selecting Test Features
Setting Receive N X 64 kb/s (N X 56 kb/s) Structured Payload/Test
Signal
Setting Receive N X 64 kb/s (N X 56 kb/s)
Structured Payload/Test Signal
Description Wideband services such as high speed data links and LAN
interconnection require a bandwidth greater than 64 kb/s but less than 2
Mb/s e.g. 128 kb/s or 384 kb/s. These wideband signals are sent in a 2
Mb/s frame by sharing the signal between multiple timeslots.
N X 64kb/s structured payload/test signal allows the test Timeslots to be
chosen for error measurement even when the Timeslots are non
contiguous.
Structured payloads are only available if Option UKJ, Structured PDH,
or Option 110 DS1, DS3, E1, E3 structured PDH is fitted.
Option
Differences
Option 110 provides a choice of Nx64 kb/s or Nx56 kb/s Test Signals with
a DS1 payload. The Nx56 kb/s selection is similar to Nx64 kb/s except
that the last bit in each timeslot is set to 1.
HOW TO: 1 Choose the required Test Signal rate.
2 Choose the Framing pattern of the 2M PAYLOAD or (DS1 PAYLOAD
Option 110).
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