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Selecting Test Features
Setting DSn Spare Bits
Setting DSn Spare Bits
Description Certain Spare Bits will cause the occurrence of a minor alarm when
received as a logical "0".:
8 Mb/s & 34 Mb/s - FAS Bit 12
2 Mb/s - NFAS Timeslot (timeslot 0 of NFAS frame) Bit 0
HOW TO: 1 If SONET interface is chosen, set up the SONET transmit interface
and payload required. See "Setting SONET Transmit Interface "
page 4.
If DSn interface is chosen, set up the DSn transmit interface and
payload required. See "Setting DSn Transmit Interface " page 2.
2 Set the value of the spare bits required for testing.
If a BIT SEQUENCE is required, choose SEND SEQUENCE to
transmit the sequence.
ON