6-18
SECTION 6
PRINTER
OPERATION
AIS
— Alarm Indication Signal (AIS) indi-
cates an unframed T1 signal consisting of
2048 consecutive ones has been received.
Status Messages
SIGNAL DETECT
— T1 pulses of valid fre-
quency and level are present.
FRA SYNC ACQUIRED
— The framing pat-
tern has been detected and synchronization is
acquired.
PATT SYNC ACQUIRED
— The test pattern
has been detected and synchronization is ac-
quired.
B8ZS DETECTED
— B8ZS line code is re-
ceived.
NOT B8ZS COMPATIBLE
— When the switch
is set to the B8ZS position and the selected
pattern is ALL ZERO, this message is displayed
whenever the instrument receives the sequence
0001 1011, which occurs if a non-B8ZS com-
patible piece of equipment regenerates the trans-
mitted signal.
BUFFER FULL
— The internal print buffers
have overflowed. At least one printout has been
lost (discarded). Note that this is the only mes-
sage that is not date- and time-stamped.
NOTE:
Print buffer overflow may result in lost
information.
Содержание T-BERD 107A
Страница 81: ...SECTION 3 3 42 INSTRUMENT DESCRIPTION ...
Страница 203: ...6 20 SECTION 6 PRINTER OPERATION ...
Страница 239: ...C 18 STRESS PATTERNS APPENDIX C ...
Страница 249: ...INTELLIGENT APPENDIX D NETWORK EQUIPMENT D 10 ...
Страница 261: ...INDEX T BERD 107A INDEX 12 ...