Spectracom NetClock 9400 Series, User Reference Manual

Page: 424 / 467

‘t’ command
Input format:
t<CR>
Output format:
Current Second 1 2 3
<CR> HHMMSS<CR> HHMMSS<CR> HHMMSS<CR>
Number of characters: 7 (including CR)
Each
HHMMSS
filed refers to the time at the start of the next second. The data transmitted by
NetClock is timed so that the stop bit of each <
CR
> ends at the start of the next second.
‘d’ command
NetClock transmits the date on request.
Input format:
d<CR>
Output format:
YYMMDD<CR>
Number of output characters: 7 (including CR)
‘s’ command
NetClock transmits the status information on request.
Input format:
s<CR>
Output Format:
status
Number of output characters: 1
Where returned, values for
status
are:
G
= System Good
D
= Failure of NetClock internal diagnostics
T
= NetClock does not have correct time
‘l’ command
The loopback command will cause NetClockto echo the next character received back to the
caller. This may be used by a caller’s equipment to calculate the round trip delay across the
PSTN connection in order to apply a correction to the received time data.
Input format:
l<CR>
Output format: (Next character received)
408 NetClock User Reference Guide
APPENDIX