‘t’ command
Input format: t<CR>
Output format:
Current Second Second + 1 Second + 2 Second + 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
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