Comtech EF Data SDM-300L3 User Manual
Page 253
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SDM-300L3 Satellite Modem
Revision 1
Fault Isolation
MN/SDM300L3.IOM
9–5
Test Note
Fault/Alarm Relay
Test Points Connector/Pins
1
TX FAULT
Pin 4 (NO), 5 (COM), 6 (NC) ****
2
RX FAULT
Pin 7 (NO), 8 (COM), 9 (NC) ****
3
COM EQ FAULT
Pin 1 (NO), 2 (COM), 3 (NC) ****
4
TX ALARM #2
Pin 4 (NO), 5 (COM), 6 (NC) +
5
RX ALARM #3
Pin 7 (NO), 8 (COM), 9 (NC) +
6
PRIMARY ALARM
Pin 43 (NO), 10 (COM), 27 (NC) +
7
SECONDARY ALARM
Pin 44 (NO), 11 (COM), 28 (NC) +
8
DEF MAINT ALARM
Pin 17 *****
* IDR
only.
** IBS
only.
*** D&I
only.
****
A connection between the common and N.C. contacts indicate fault.
*****
Signal is open collector high impedance if faulted.
+
A connection between the common and N.O. contacts indicate alarm.
Figure 9-1. SDM-300L3 Fault Tree (Continued)
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- CDM-800 (130 pages)
- ODMR-840 (184 pages)
- CDM-750 (302 pages)
- CDM-840 (244 pages)
- SLM-5650A (420 pages)
- CTOG-250 (236 pages)
- CDM-700 (256 pages)
- CDM-760 (416 pages)
- CDM-710G (246 pages)
- CDM-600/600L (278 pages)
- CDMR-570L (512 pages)
- CDM-625 (684 pages)
- CDM-625A (756 pages)
- CDD-564A (240 pages)
- CDD-564L (254 pages)
- CLO-10 (134 pages)
- MCED-100 (96 pages)
- CDMR-570AL (618 pages)
- CDM-600 LDPC (2 pages)
- BUC Power Supply Ground Cable (2 pages)
- MPP70 Hardware Kit for CDM-570L (4 pages)
- MPP50 Hardware Kit for CDM-570L (4 pages)
- CDM-625 DC-AC Conversion (4 pages)
- CDM-625 DC-AC Conversion with IP Packet Processor (4 pages)
- DMDVR20 LBST Rev 1.1 (117 pages)
- DMD-2050 (342 pages)
- DMD2050E (212 pages)
- DMD1050 (188 pages)
- OM20 (220 pages)
- QAM256 (87 pages)
- DD240XR Rev Е (121 pages)
- MM200 ASI Field (5 pages)
- DM240-DVB (196 pages)
- MM200 (192 pages)
- CRS-150 (78 pages)
- CRS-280L (64 pages)
- CRS-170A (172 pages)
- CRS-180 (136 pages)
- SMS-301 (124 pages)
- CiM-25/8000 (186 pages)
- CiM-25 (26 pages)
- CRS-500 (218 pages)
- CRS-311 (196 pages)
- CIC-20 LVDS to HSSI (26 pages)