SDM-300A Satellite Modem
Installation
Rev. 4
2–9
Table 2-4. 25-Pin D Connector Pinouts
25-Pin D Connector
Pin #
EIA-422
EIA-232
V.35
1
SHLD
SHLD
SHLD
2
SD-A
TXD
SD-A
3
RD-A
RXD
RD-A
4
RS-A
RTS
RTS
5
CS-A
CTS
CTS
6
DM-A
DSR
DSR
7
SIGGND
SIGGND
SIGGND
8
RR-A
DCD
RLSD
9
RT+B
SCR+B
10
RR-B
11
TT+B
SCTE+B
12
ST+B
SCT+B
13
CS+B
14
SD+B
SD+B
15
ST-A
ST
SCT-A
16
RD+B
RD+B
17
RT-A
RXC
SCR-A
18
LL
LL
LL
19
RS+B
20*
MC-A
MC
MC-A
21
DF
DF
DF
22
DM+B
23*
MC+B
MC-B
24
TT-A
TXC
SCTE-A
25
MF
MF
MF
*Note: Use the MASTER clock for EXTERNAL clock input. This clock input
should equal the data rate unless the Asymmetrical Loop Timing Option (ASLT)
is available. The ASLT option allows selection of different clock rates that vary
from the digital data rate. Refer to the Utility/Modem Type/Modem Options menu
for the ASLT option information.
Содержание SDM-300A
Страница 1: ...Part Number MN SDM300A IOM Revision 4 SDM 300A Satellite Modem Installation and Operation Manual...
Страница 33: ...Introduction SDM 300A Satellite Modem 1 14 Rev 4 This page is intentionally left blank...
Страница 36: ...SDM 300A Satellite Modem Installation Rev 4 2 3 Figure 2 1 Installation of the Mounting Bracket...
Страница 57: ...Operation SDM 300A Satellite Modem 3 4 Rev 4 This page is intentionally left blank...
Страница 78: ...SDM 300A Satellite Modem Operation Rev 4 3 25 This page is intentionally left blank...
Страница 96: ...SDM 300A Satellite Modem Operation Rev 4 3 43 This page is intentionally left blank...
Страница 101: ...Operation SDM 300A Satellite Modem 3 48 Rev 4 This page is intentionally left blank...
Страница 118: ...SDM 300A Satellite Modem Operation Rev 4 3 65 This page is intentionally left blank...
Страница 169: ...Theory of Operation SDM 300A Satellite Modem 4 18 Rev 4 This page is intentionally left blank...
Страница 176: ...SDM 300A Satellite Modem Maintenance Rev 4 5 7 WITH NOISE WITHOUT NOISE Figure 5 4 Typical Eye Constellations...
Страница 189: ...Maintenance SDM 300A Satellite Modem 5 20 Rev 4 This page is intentionally left blank...
Страница 200: ...SDM 300A Satellite Modem Options Rev 4 A 11 Figure A 2 D I with Asynchronous Overhead Data Flow...
Страница 205: ...Options SDM 300A Satellite Modem A 16 Rev 4 Figure A 3 E1 Framing Formats...
Страница 206: ...SDM 300A Satellite Modem Options Rev 4 A 17 Figure A 4 T1 Framing Formats...
Страница 237: ...Options SDM 300A Satellite Modem A 48 Rev 4 Figure A 10 IDR Interface Block Diagram...
Страница 241: ...Options SDM 300A Satellite Modem A 52 Rev 4 Figure A 11 IBS Interface Block Diagram...
Страница 257: ...Options SDM 300A Satellite Modem A 68 Rev 4 CBA Figure A 19 Reed Solomon Codec Installation...
Страница 260: ...SDM 300A Satellite Modem Options Rev 4 A 71 CBA Figure A 20 Overhead Interface PCB Installation...
Страница 265: ...Options SDM 300A Satellite Modem A 76 Rev 4 Figure A 24 8 Channel Multiplexer Installation...
Страница 273: ...Options SDM 300A Satellite Modem A 84 Rev 4 Figure A 26 Flex Mux Multiplexer Installation...
Страница 275: ...Options SDM 300A Satellite Modem A 86 Rev 4 This page is intentionally left blank...
Страница 330: ...SDM 300A Satellite Modem Remote Control Operation Rev 4 B 55...
Страница 362: ...Specifications SDM 300A Satellite Modem C 32 Rev 4 Figure C 7 8PSK BER Specification Curves 1544 kbit s...
Страница 366: ...Specifications SDM 300A Satellite Modem C 36 Rev 4 1 1 Rate Specification Figure C 9 Uncoded 1 1 BPSK QPSK and OQPSK...
Страница 388: ...Specifications SDM 300A Satellite Modem C 58 Rev 4 This page is intentionally left blank...
Страница 392: ...Glossary SDM 300A Satellite Modem g 4 Rev 4 This page is intentionally left blank...
Страница 398: ...Index SDM 300A Satellite Modem i 6 Rev 4 This page is intentionally left blank...