SDM-309B Satellite Modem
Maintenance
MN/U-SDM309B Rev. #
6-6–17
FRM_BER
Frame Bit Error Rate.
The receive decoded error rate has exceeded 10E-3 over a 60 second
period, measured on the framing bits. This is defined as a major (prompt)
receive alarm by Intelsat Specification IESS-308. In a redundant system a
switchover will be attempted. Since some data must be correctly received
to indicate this fault, receive AIS will not be substituted. This fault is to be
sent as a backward alarm to the distant end. This must be wired externally
as faults other than from the modem may need to enter the fault tree.
BW_ALARM
Backward Alarm Fault.
Modem is receiving a backward alarm indicating trouble at the distant end
which may be a result of improper transmission at the near end of the link.
This particular alarm is reported and recorded but the modem takes no
other action. In most cases however, this fault is due to some receive
problem with the modem so a "real" fault will probably be occurring if
backward alarm faults are being recorded.
Insert
(D&I Only) Insert Interface Hardware Fault.
The typical cause of this fault is the insert phase locked loop is not locked
or some other insert interface hardware has malfunctioned. Return the
Drop and insert channel unit to the factory for repair.
Ins_Clk
(D&I Only) Insert Clock Fault.
This fault occurs when no data is present on the Terrestrial side of the
interface usually caused by the wrong clock selection such as the insert
clock source is selected as “External” and no external clock is present.
Check the selected clock source and verify the clock is present. If the fault
is modem related, other faults will also occur. If the Satellite clock is
selected a demod fault, “Data Clk_Syn” fault will probably occur. If the
Insert clock is selected a mod fault, “TX_Clk_Syn” fault will probably occur.
RX_PLL
(IBS/M1200P Only) Indicates a loss of lock on the reference of the
interface receive clock recovery oscillator. Return the interface card for
repair.
BUFF_CLK
Loss of activity on the selected buffer clock source. The modem will
fallback to the satellite clock.
MUX_LOCK
Demultiplexer Synchronization Lock Fault This fault means that the
demultiplexer is unable to maintain valid frame and multiframe alignment.
The usual cause is invalid or absent receive data. This is a major (prompt)
alarm. It will cause insertion of receive Alarm Indication Signal (all ones)
and switchover will be attempted. This fault is to be sent as a backward
alarm to the distant end. This fault will occur when no carrier is present,
but will probably never occur with a correct signal.
Table 6-2
Programmable Data Rates For The EFData
Variable Rate SDM-309B Modem
64.0
64.5
65.0
65.5
66.0
66.5
67.0
67.5
68.0
68.5
69.0
69.5
70.0
70.5
71.0
71.5
72.0
72.5
73.0
73.5
74.0
74.5
75.0
75.5
76.0
76.5
77.0
77.5
78.0
78.5
79.0
79.5
80.0
80.5
81.0
81.5
82.0
82.5
83.0
83.5
84.0
84.5
85.0
85.5
86.0
86.5
87.0
87.5
88.0
88.5
89.0
89.5
90.0
90.5
91.0
91.5
92.0
92.5
93.0
93.5
94.0
94.5
95.0
95.5
96.0
96.5
97.0
97.5
98.0
98.5
99.0
99.5
100.0
100.5
101.0
101.5
102.0
102.5
103.0
103.5
104.0
104.5
105.0
105.5
106.0
106.5
107.0
107.5
108.0
108.5
109.0
109.5
110.0
110.5
111.0
111.5
112.0
112.5
113.0
113.5
114.0
114.5
115.0
115.5
116.0
116.5
117.0
117.5
118.0
118.5
119.0
119.5
120.0
120.5
121.0
121.5
122.0
122.5
123.0
123.5
124.0
124.5
125.0
125.5
126.0
126.5
127.0
127.5
128.0
128.5
129.0
129.5
130.0
130.5
131.0
131.5
132.0
132.5
133.0
133.5
134.0
134.5
135.0
135.5
136.0
136.5
137.0
137.5
138.0
138.5
139.0
139.5
140.0
140.5
141.0
141.5
142.0
142.5
143.0
143.5
144.0
Содержание SDM-309B
Страница 7: ...Preface SDM 309B Satellite Modem iv Rev 0 This page is intentionally blank ...
Страница 13: ...Table of Contents SDM 309B Satellite Modem x Rev 0 This page is intentionally blank ...
Страница 16: ...SDM 309B Satellite Modem Introduction MN U SDM309B Rev 1 1 3 Figure 1 1 SDM 309B Modem ...
Страница 18: ...SDM 309B Satellite Modem Introduction MN U SDM309B Rev 1 1 5 Figure 1 3 Modular Construction ...
Страница 19: ...Introduction SDM 309B Satellite Modem 1 1 6 MN U SDM309B Rev Figure 1 4 SDM 309B Block Diagram ...
Страница 23: ...Introduction SDM 309B Satellite Modem 1 1 10 MN U SDM309B Rev Figure 1 5 Typical Bit Error Rate Performance ...
Страница 25: ...Introduction SDM 309B Satellite Modem 1 1 12 MN U SDM309B Rev ...
Страница 28: ...SDM 309B Satellite Modem Installation MN U SDM309B Rev 2 2 3 Figure 2 1 Rear Panel View ...
Страница 34: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 3 Figure 3 1 Front Panel View ...
Страница 47: ...Operation SDM 309B Satellite Modem 3 16 MN U SDM309B Rev Figure 3 2 Menu Tree ...
Страница 48: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 17 Figure 3 3 Menu Tree ...
Страница 49: ...Operation SDM 309B Satellite Modem 3 18 MN U SDM309B Rev Figure 3 4 Menu Tree ...
Страница 50: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 19 Figure 3 5 Menu Tree ...
Страница 51: ...Operation SDM 309B Satellite Modem 3 20 MN U SDM309B Rev Figure 3 6 Menu Tree ...
Страница 52: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 21 Figure 3 7 Menu Tree ...
Страница 53: ...Operation SDM 309B Satellite Modem 3 22 MN U SDM309B Rev Figure 3 8 IF Loopback ...
Страница 54: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 23 Figure 3 9 RF Loopback ...
Страница 55: ...Operation SDM 309B Satellite Modem 3 24 MN U SDM309B Rev Figure 3 10 Interface Loopback ...
Страница 56: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 25 Figure 3 11 Baseband Loopback ...
Страница 71: ...Operation SDM 309B Satellite Modem 3 40 MN U SDM309B Rev Figure 3 12 Menu Tree ...
Страница 72: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 41 Figure 3 13 Menu Tree ...
Страница 73: ...Operation SDM 309B Satellite Modem 3 42 MN U SDM309B Rev Figure 3 14 Menu Tree ...
Страница 74: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 43 Figure 3 15 Menu Tree ...
Страница 75: ...Operation SDM 309B Satellite Modem 3 44 MN U SDM309B Rev Figure 3 16 Menu Tree ...
Страница 76: ...SDM 309B Satellite Modem Operation MN U SDM309B Rev 3 45 Figure 3 17 Menu Tree ...
Страница 77: ...Operation SDM 309B Satellite Modem 3 46 MN U SDM309B Rev ...
Страница 80: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 3 Figure 4 1 Monitor Control Card ...
Страница 86: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 9 Figure 4 2 IBS Interface Module ...
Страница 87: ...M C and Interfaces SDM 309B Satellite Modem 4 4 10 MN U SDM309B Rev Figure 4 3 IBS Interface Block Diagram ...
Страница 88: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 11 Figure 4 4 IBS Fault Tree ...
Страница 89: ...M C and Interfaces SDM 309B Satellite Modem 4 4 12 MN U SDM309B Rev Figure 4 5 Jumper Table ...
Страница 95: ...M C and Interfaces SDM 309B Satellite Modem 4 4 18 MN U SDM309B Rev Figure 4 6 IBS Break Out Panel ...
Страница 105: ...M C and Interfaces SDM 309B Satellite Modem 4 4 28 MN U SDM309B Rev Figure 4 8 Drop and Insert Channel Unit ...
Страница 106: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 29 Figure 4 9 Drop and Insert Block Diagram ...
Страница 107: ...M C and Interfaces SDM 309B Satellite Modem 4 4 30 MN U SDM309B Rev Figure 4 10 Drop Insert Fault Tree ...
Страница 108: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 31 Figure 4 11 Drop Insert Jumper Table ...
Страница 112: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 35 Figure 4 12 Drop and Insert Break Out Panel ...
Страница 118: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 41 Figure 4 13 Rear Panel Switch Diagram ...
Страница 120: ...SDM 309B Satellite Modem M C and Interfaces MN U SDM309B Rev 4 4 43 Figure 4 14 Drop and Insert Schematic Diagram ...
Страница 127: ...SDM 309B Satellite Modem Theory of Operation MN U SDM309B Rev 5 5 3 Figure 5 1 Modulator Card ...
Страница 128: ...Theory of Operation SDM 309B Satellite Modem 5 5 4 MN U SDM309B Rev Figure 5 2 Modulator Block Diagram ...
Страница 129: ...SDM 309B Satellite Modem Theory of Operation MN U SDM309B Rev 5 5 5 Figure 5 3 Modulator Output Spectral Occupancy ...
Страница 133: ...SDM 309B Satellite Modem Theory of Operation MN U SDM309B Rev 5 5 9 Figure 5 4 Viterbi Decoder AS 0701 ...
Страница 134: ...Theory of Operation SDM 309B Satellite Modem 5 5 10 MN U SDM309B Rev Figure 5 5 Viterbi Decoder AS 0949 ...
Страница 135: ...SDM 309B Satellite Modem Theory of Operation MN U SDM309B Rev 5 5 11 Figure 5 6 Viterbi Decoder AS 2133 ...
Страница 136: ...Theory of Operation SDM 309B Satellite Modem 5 5 12 MN U SDM309B Rev Figure 5 7 Viterbi Decoder Block Diagram ...
Страница 137: ...SDM 309B Satellite Modem Theory of Operation MN U SDM309B Rev 5 5 13 Figure 5 8 Typical Decoder BER Performance ...
Страница 141: ...SDM 309B Satellite Modem Theory of Operation MN U SDM309B Rev 5 5 17 Figure 5 9 Demodulator Card ...
Страница 142: ...Theory of Operation SDM 309B Satellite Modem 5 5 18 MN U SDM309B Rev Figure 5 10 Demodulator Block Diagram ...
Страница 148: ...SDM 309B Satellite Modem Maintenance MN U SDM309B Rev 6 6 3 Figure 6 1 Typical Output Spectrum ...
Страница 149: ...Maintenance SDM 309B Satellite Modem 6 6 4 MN U SDM309B Rev Figure 6 2 Output Spectrum With Noise ...
Страница 151: ...Maintenance SDM 309B Satellite Modem 6 6 6 MN U SDM309B Rev Figure 6 3 Typical Eye Patterns ...
Страница 152: ...SDM 309B Satellite Modem Maintenance MN U SDM309B Rev 6 6 7 Figure 6 4 Typical Eye Constellations ...
Страница 166: ...SDM 309B Satellite Modem Maintenance MN U SDM309B Rev 6 6 21 Figure 6 10 Rear View Without Cover ...
Страница 171: ...SDM 309B Satellite Modem Data Rates and Filters MN U SDM309B Rev A 3 Figure A 1 Modulator Filter Card Change ...
Страница 172: ...Data Rates and Filters SDM 309B Satellite Modem A 4 MN U SDM309B Rev Figure A 2 Demodulator Filter Card Change ...
Страница 173: ...SDM 309B Satellite Modem Data Rates and Filters MN U SDM309B Rev A 5 Figure A 3 Fixed Rate Modulator Filter ...
Страница 174: ...Data Rates and Filters SDM 309B Satellite Modem A 6 MN U SDM309B Rev Figure A 4 Fixed Rate Demodulator Filter ...
Страница 175: ...SDM 309B Satellite Modem Data Rates and Filters MN U SDM309B Rev A 7 Figure A 5 Variable Rate Modulator Filter ...
Страница 176: ...Data Rates and Filters SDM 309B Satellite Modem A 8 MN U SDM309B Rev Figure A 6 Variable Rate Demodulator Filter ...
Страница 177: ...SDM 309B Satellite Modem Data Rates and Filters MN U SDM309B Rev A 9 ...
Страница 207: ...Remote Control SDM 309B Satellite Modem B B 30 MN U SDM309B Rev Where x xx is the software version number ...
Страница 211: ...External Channel Unit SDM 309B Satellite Modem C C 4 MN U SDM309B Rev Figure C 2 System Interconnect Diagram ...
Страница 212: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 5 Figure C 3 Adapter Cable AS 0749 V 35 ...
Страница 213: ...External Channel Unit SDM 309B Satellite Modem C C 6 MN U SDM309B Rev Figure C 4 Adapter Cable AS 0750 V 35 ...
Страница 214: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 7 Figure C 5 Adapter Cable AS 0751 RS449 ...
Страница 215: ...External Channel Unit SDM 309B Satellite Modem C C 8 MN U SDM309B Rev Figure C 6 Adapter Cable AS 0752 15 Pin D ...
Страница 216: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 9 Figure C 7 Adapter Cable AS 0741 RS449 ...
Страница 217: ...External Channel Unit SDM 309B Satellite Modem C C 10 MN U SDM309B Rev Figure C 8 Adapter Cable AS 0753 15 Pin D ...
Страница 220: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 13 Figure C 9 RS422 MIL STD 188 114 Interface ...
Страница 221: ...External Channel Unit SDM 309B Satellite Modem C C 14 MN U SDM309B Rev Figure C 10 RS422 MIL STD 188 114 Block Diagram ...
Страница 226: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 19 Figure C 11 V 35 Interface Card ...
Страница 227: ...External Channel Unit SDM 309B Satellite Modem C C 20 MN U SDM309B Rev Figure C 12 V 35 Interface Block Diagram ...
Страница 235: ...External Channel Unit SDM 309B Satellite Modem C C 28 MN U SDM309B Rev Figure C 13 Menu Tree ...
Страница 236: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 29 Figure C 14 Menu Tree ...
Страница 237: ...External Channel Unit SDM 309B Satellite Modem C C 30 MN U SDM309B Rev Figure C 15 Menu Tree ...
Страница 238: ...SDM 309B Satellite Modem External Channel Unit MN U SDM309B Rev C C 31 ...
