Comtech EF Data OM20 - Manual (Page 209)

OM20 Universal Outdoor Modem Appendix G
MN-OM20– Revision 5 G–5
G.2 Sample Applications
The following section provides brief application notes for operating the modem and explains by
example how to configure the modem for some of the most popular configurations.
The following information illustrates the allowable combinations for Mode and Data Rate.
Allowable Combinations: Mode/Rate/Framing.
IDR:
8.448 Mbps
3/4, 7/8 Rate FEC
6.312 Mbps 1/2, 3/4, 7/8 Rate FEC
2.048 Mbps 1/2, 3/4, 7/8 Rate FEC
1.544 Mbps or Below 1/2, 3/4, 7/8 Rate FEC
IBS:
2.048 Mbps or below 1/2, 3/4, 7/8 Rate
Closed Network:
8.448: 96 Kb Framing or No Framing, 3/4, 7/8 Rate FEC
6.312: 96 Kb Framing or No Framing, 1/2, 3/4, 7/8 Rate FEC
2.048: 96 Kb Framing or 1/15 Framing or No Framing, 1/2, 3/4,
7/8 Rate FEC
1.544: 96 Kb Framing or 1/15 Framing or No Framing, 1/2, 3/4, 7/8
Rate FEC
Any Rate 2.048 & lower: 1/15 Framing or No Framing, 1/2, 3/4, 7/8 Rate FEC
G.2.1 Operational Case Examples
For best results always begin setup by setting the data rate to 512 Kbps.
This data rate is applicable for all modes and as such provides a
convenient launch point for setting up the modem. Any mode of
operation can be entered from this starting point.