EndRun RTM3204, Руководство пользователя

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R T M 3 2 0 4 G P S T i m i n g M o d u l e U s e r M a n u a l 4
C H A P T E R T W O
5 R T M 3 2 0 4 G P S T i m i n g M o d u l e 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
Physical
Description
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Sync LED This green LED flashes to indicate synchronization status.
Network LED This amber LED illuminates when the RTM32304 is connected to the
network and flashes when receiving or transmitting packets..
Alarm LED This red LED illuminates briefly at power-up, and thereafter whenever
a serious fault condition exists.
Antenna Jack This SMB connector mates with the downlead cable from the external
antenna.
RS-232 Connector This DB-9M connector provides the RS-232 serial I/O console
interface to the RTM3204. This console allows the user to initialize
and maintain the RTM3204. See Chapter 3 - RS-232 Serial I/O Port
Signal Definitions
for detailed information.
1PPS Jack This SMB connector provides the 1PPS TTL output. The pulse width
is normally 1 millisecond wide when shipped from the factory but can
be changed via console command “cpuoptsconfig”. Other selections
are 20 microseconds, 100 milliseconds and 500 milliseconds. See
signal definition in Appendix F - Specifications for the 1PPS output.
10MPPS Jack This SMB connector provides the 10MPPS TTL output. See signal
definition in Appendix F - Specifications for more information.
AM Code Jack This SMB connector provides the amplitude-modulated timecode
output. The timecode output is normally IRIG-B122 when shipped
from the factory, but can be changed via the console command
“cpuoptsconfig”. Other selections are IRIG-B123, IRIG-B IEEE-1344
compliant, NASA-36 and 2137. See signal definition in Appendix F
- Specifications
for the AM Code output.