Table of Contents
Advertisement
CDM-600L Satellite Modem
Open Network Operations
9.4
IDR
G.703
EIA-422 (Replaces 8K Overhead)
V.35 (Replaces 8K Overhead)
ESC Audio
Audio Encoding
Audio Interface Type
Audio Input Level
Audio Output Level
Audio Filtering
ESC Data Interface Type
ESC Data Rate
ESC Data Circuits
Supported
Data Signal Phasing
Octet Timing
Backward Alarms Supported
Backward Alarm Inputs
Backward Alarm Outputs
Primary Data Rates Supported
1544 kbps SD, RD
2048 kbps SD, RD
6312 kbps SD, RD
8448 kbps SD, RD
Engineering Service Channel
2 duplex ADPCM channels
CCITT G.721
600Ω transformer-balanced 4-wire
Nominal Input : 0dBm0 (-3dBm, 600Ω)
Adjustment range: -6 to +8 dB, 2 dB steps
Adjustment range: -6 to +8 dB, 2 dB steps
Internal 300 to 3400 Hz input and output
RS-422
8 kbps, also 64 kbps if ADPCM audio is not used
SD, ST, RD, RT, Octet in, Octet out
Per EIA-449, data changes on the rising clock transition, is
sampled on the falling clock edge
th
Octet high with every 8
bit, aligns with frame bit d8
Faults and Alarms
4 input, 4 output
1 kΩ pull up to ground, set high to activate.
Form C Relay, N/O, N/C, Com
9–4
Revision 0
MN/CDM600L.IOM
Advertisement
Table of Contents
