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CDM-600L Satellite Modem
Remote Control
14.3
Data Interfaces
Primary Data
(3 selectable modes)
G.703 (Tx In, Drop
Out, Insert In, Rx
Out)
External Reference
In
Overhead Data
Modem Alarms
IDR BWA Outputs
Remote Control
ADPCM Audio
Interface
Auxiliary Serial
14.4
Automatic Uplink Power Control
Operating Mode
Target Eb/No range
Max AUPC range
Monitor functions
RS-422/RS-530 DCE (Rates up to 10 Mbps)
(also supports X.21 DCE & DTE and 8k ESC orderwire for IDR)
V.35 DCE (Rates up to 10 Mbps)
Synchronous RS-232 (Rates up to 300 kbps)
LVDS serial (Rates up to 20 Mbps)
HSSI - Requires optional CIC-20 Converter (Rates up to 20
Mbps)
1.544 Mbps T1 (Balanced 100 Ω)
6.312 Mbps T2 (unbalanced 75 Ω or balanced 110 Ω)
2.048 Mbps E1 (unbalanced 75 Ω or balanced 120 Ω)
8.448 Mbps E2 (unbalanced 75 Ω)
Note: All Drop and Insert modes are a FAST option.
2.4 kHz – 10 MHz, in 1 Hz steps (locks baseband clocks only)
TTL level (unbalanced) or sine wave @ 0dBm nominal
RS-422 octet clocks for IDR ESC & IBS
RS-422 IDR 64 kbps ESC data & clock
RS-232 IBS ESC data & clock
RS-422 External Reference input
IDR BWA Inputs
RS-232 High Rate ESC data (future upgrade)
Relay outputs (Tx, Rx & unit faults)
Demodulator I & Q test outputs (constellation)
Demodulator Rx Signal Level output (0 to 2.5 volts)
External carrier off input
4 backward alarm Form C relay outputs
RS-232 or RS-485 modem control and monitoring
2 audio channels, each occupying 32 kbps bandwidth as part of
IDR overhead or as a 64 kbps primary data rate option.
600 Ω balanced – 0 dBm0 nominal, -6 to +8 dB, 2 dB steps
RS-232 link to other modem in 1:1 pair, via CRS-150
Requires Closed Network Framed mode for transport of Eb/No information from remote
modem (EDMAC can be enabled or disabled)
0 to 9.9 dB at remote demod (default is 4.0 dB)
0 to 9 dB (default is 3 dB)
Remote demod Eb/No
Tx power level increase
(front panel or via remote control interface)
14–9
Revision 0
MN/CDM600L.IOM
25-pin D-sub (female)
15-pin D-sub (female)
or BNC (female)
BNC (female)
25-pin D-sub (male)
15-pin D-sub (male)
15-pin D-sub (female)
9-pin D-sub (male)
9-pin D-sub (female)
USB Type B Socket
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