CDM-625 Advanced Satellite Modem
Revision 1
Open Network Operations
MN-0000036 (Ref MN/CDM625.IOM)
14.3 Drop and Insert (D&I)
Primary Data Rates Supported
G.703, EIA-422, V.35 and Serial
LVDS
1544 kbps SD, RD, DDO, IDI
2048 kbps SD, RD, DDO, IDI
Satellite Data Rates Supported
(all have 16/15 overhead)
N x 64 kbps
N = 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, or 24 (T1)
N = 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, or 30 (E1-CCS)
N = 1, 2, 4, 6, 8, 12, 16, 24, 30 (E1-CAS)
Terrestrial Framing Supported
G.732/G.733, G.704
Satellite Overhead Rate
16/15 of data rate per IESS-308 Rev. 6 and IESS-309 Rev.
3, or higher
Timeslot Selection Range
1 to 24 (all T1 modes)
1 to 30 (E1-CAS and E1-CCS)
Arbitrary order, non-contiguous available
Plesiochronous Buffer Sizes
Selectable size of 64 to 262,144 bits, in 16-bit steps (with
added limitations for G.704 frame boundaries)
Buffer Clock Reference
Derived from Insert Data In (Insert Clock)
External, RX (satellite) or TX (Terrestrial)
Asynchronous Engineering Service Channel
ESC Data Interface Type
EIA-232, Asynchronous
ESC Data Rate
1/2000 of primary data rate
ESC Data Circuits Supported
SD, RD, DSR
Synchronous Engineering Service Channel
ESC Data Interface Type
EIA-232, synchronous to primary data
ESC Data Rate
1/480 of primary data rate
ESC Data Circuits Supported
SD, ST, RD, RT, DSR
Faults and Alarms
Satellite Backward Alarm
1 (per IESS-309)
Receive BWA Output
Enabled onto terrestrial secondary alarm
14–3
Содержание CDM-625
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Страница 26: ...CDM 625 Advanced Satellite Modem Revision 1 Preface MN 0000036 Ref MN CDM625 IOM xxiv Notes...
Страница 48: ...CDM 625 Advanced Satellite Modem Revision 1 Introduction MN 0000036 Ref MN CDM625 IOM 1 22 Notes...
Страница 148: ...CDM 625 Advanced Satellite Modem Revision 1 Front Panel Operation MN 0000036 Ref MN CDM625 IOM 5 76 Notes...
Страница 182: ...CDM 625 Advanced Satellite Modem Revision 1 Ethernet Management MN 0000036 Ref MN CDM625 IOM 6 34 Notes...
Страница 206: ...CDM 625 Advanced Satellite Modem Revision 1 Forward Error Correction Options MN 0000036 Ref MN CDM625 IOM 7 24 Notes...
Страница 240: ...CDM 625 Advanced Satellite Modem Revision 1 EDMAC Channel MN 0000036 Ref MN CDM625 IOM 11 4 Notes...
Страница 244: ...CDM 625 Advanced Satellite Modem Revision 1 Offset QPSK Operation MN 0000036 Ref MN CDM625 IOM 13 2 Notes...
Страница 258: ...CDM 625 Advanced Satellite Modem Revision 1 Eb No Measurement MN 0000036 Ref MN CDM625 IOM B 4 Notes...
Страница 320: ...CDM 625 Advanced Satellite Modem Revision 1 Remote Control MN 0000036 Ref MN CDM625 IOM D 60 Notes...
Страница 322: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...