Removal and replacement of ADU modules
98-133966-G1
Chapter 8: Service & maintenance
8-23
8888
Service & maintenance
18.DC-Motor Driver Module for Azimuth (DDM).
19.Azimuth motor.
20.Azimuth encoder.
21.Rotary joint.
The cable signals for the ADU (DC power, internal modem
communication, TX IF, RX and L-band TX) to and from the ACU have
to be ported from the stationary platform to the azimuth rotating
part of the ADU. This is done via the rotary joint.
22.Feed horn.
The feeder horn carries the mirror centred of the dish and in the
correct distance. Thereby the signal from the satellite is reflected by
the dish and picked up by the mirror. Then it is transported through
the horn to the OMT.
Before contacting your service partner check the LEDs on all modules
(VIM, DDMs, PCM, PMM and ISM). See
Figure 8-21: Above Deck Unit modules (continued)
SAILOR900TM.book Page 23 Monday, September 16, 2013 11:01 AM
Summary of Contents for Sailor 900 VSAT
Page 2: ...98 138976 A Cover_SAILOR 900 VSAT System_407090B indd 2 15 04 2013 15 54 39 ...
Page 28: ...List of tables xxvi 98 133966 G1 SAILOR900TM book Page xxvi Monday September 16 2013 11 01 AM ...
Page 257: ...Appendices SAILOR900TM book Page 1 Monday September 16 2013 11 01 AM ...
Page 258: ...SAILOR900TM book Page 2 Monday September 16 2013 11 01 AM ...
Page 355: ...98 138976 A Cover_SAILOR 900 VSAT System_407090B indd 3 15 04 2013 15 54 40 ...