B.1 Overview; B.2 Modes; B.2.1 Om-73 Mode - Comtech EF Data SLM-5650A Installation And Operation Manual

B.1 Overview
This appendix provides the end user with reference guides for the following operational
parameters:
Section B.2 Modes provides tables showing the various operating modes' available data
•
rates and ranges.
• Section B.3 Clocking Options provides information about common clocking options and
recommended configurations.
Section B.4 Buffering.
•
B.2 Modes
The Data Rates and Symbol Rates shown in the following tables all assume that Transmission
Security (TRANSEC) is turned off. In order to calculate the max data rate with TRANSEC on,
the max data rate shown in the table becomes a max aggregate data rate. The real data rate can be
calculated by dividing the TRANSEC overhead rate from the aggregate data rate. The TRANSEC
overhead rate can be calculated for any TRANSEC Frame Length (N) as follows:
TRANSEC Overhead Rate = (3 + 16 * N) / (16 * N)
B.2.1 OM-73 Mode
Modulation Type
BPSK 1/1
BPSK 1/2
BPSK 3/4
BPSK 7/8
QPSK 1/1
QPSK 1/2
QPSK 3/4
QPSK 7/8
OQPSK 1/1
OQPSK 1/2
Appendix B. OPERATIONS
Data Rate (kbps)
Min
64
64
64
64
64
64
64
64
64
64
REFERENCE
Max Min
8472 64
15000 128
22500 85.333
26250 73.142
20000 32
30000 64
45000 42.666
51840 36.571
20000 32
30000 64
B–1
Symbol Rate (ksps)
Max
10000
30000
29999.999
30000
10000
30000
30000
29622.857
10000
30000