EndRun Meridian II, Руководство пользователя

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M e r i d i a n I I U s e r M a n u a l 6
C H A P T E R T W O
7 M e r i d i a n I I U s e r M a n u a l
B A S I C I N S T A L L A T I O N
1 PPS Output This BNC connector provides the 1 PPS TTL output. The pulse width
is normally 1 millisecond wide when shipped from the factory but can
be changed via the front-panel keypad or via console command
cpuoptsconfig
. Other selections are 20 microseconds, 100
milliseconds and 500 milliseconds. See signal definition in
Appendix K - Specifications
for the 1 PPS Output.
AM Code Output This BNC connector provides the amplitude-modulated time code
(Time Code) output. The time code output is normally IRIG-B122 when shipped
from the factory, but can be changed via the front-panel keypad or via
console command
cpuoptsconfig
. Other selections are available.
See signal definition in
Appendix K - Specifications
for the AM Code
Output.
Alarm Output This BNC connector (or terminal strip) provides the optional alarm
(Option)
output, and is usually not installed. If installed, see description in
Chapter 10 - Rear-Panel I/O and signal definition in Appendix K -
Specifications.
Programmable Pulse Output This BNC connector provides the optional Programmable TTL pulse
(Option) rate output and is usually not installed. If installed, see description
in
Chapter 10 - Rear-Panel I/O
and signal definition
in Appendix K -
Specifications.
Digital Code Output This BNC connector provides the optional digital (DC-Shift) time
(Option)
code output. The format matches the format selected for the AM Code
Output. See signal definition in Appendix K - Specifications for the
Digital Code Output.
DDS Output This BNC connector provides the optional Direct Digital Synthesizer
(Option) (DDS) output and is usually not installed. If installed, see description
in
Chapter 10 - Rear-Panel I/O
and signal definition
in Appendix K -
Specifications.
10 MPPS Output This BNC connector provides an optional 10 MPPS rate output
(Option)
and is usually not installed. If installed, see description in
Chapter 10 - Rear-Panel I/O and signal definition in Appendix K -
Specifications
.
1 PPS RS-422 Output This optional DB-9M connector provides the 1 PPS output at RS-422
(Option) levels and is usually not installed.. The pulse width is normally
1 millisecond wide when shipped from the factory but can be changed
via the front-panel keypad or via command
cpuoptsconfig
. See
pinout details in
Appendix K - Specifications
for the 1 PPS RS-422
Output.
Serial Time Output This optional DB-9M connector provides the serial I/O
(Option)
interface with a once-per-second ASCII time string output and is