Data Rate Ranges - Comtech EF Data CDM-570A Installation And Operation Manual

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Introduction
Connector
External Reference Input/Output
Modem Alarms
1:1 Control
Alarm Relay
Remote Control
Ethernet
1.3.6

Data Rate Ranges

FEC Type Modulation
BPSK
None
QPSK/OQPSK
BPSK
Viterbi
QPSK/OQPSK
BPSK
QPSK/OQPSK
Viterbi + R-S
16-QAM
TCM + R-S 8-PSK
BPSK
QPSK/OQPSK
Turbo
8-PSK/8-QAM
16-QAM
BPSK
VersaFEC
QPSK
Function
As an input: 1, 2, 5 or 10MHz -6dBm to +10dBm (nominal 50/75 Ω, BNC
female connector)
As an output: 10MHz, 2.7 volts peak-to-peak ± 0.4 volts, low impedance
output
(The Ext. reference phase locks Tx and Rx synthesizers, and all baseband
clock generation)
Relay outputs (Tx, Rx & unit faults)
Demodulator I & Q test outputs (constellation)
Demodulator Rx Signal Level output (0 to 10 volts)
External carrier off input
Async serials link to other modem, and switching signals in 1:1 pair, via CRS-
170A
Type: Form C Contacts. Rating: 125V AC/30V DC, 0.3A AC/1A DC
EIA-232 or EIA-485 modem control and monitoring
10/100 Base Tx for http, SNMP and Telnet interfaces
Code Rate
Uncoded
Uncoded
1/2
1/2
3/4
7/8
1/2
1/2
3/4
7/8
3/4
7/8
2/3
5/16
21/44
21/44
3/4
7/8
0.95
3/4
7/8
0.95
3/4
7/8
0.488
0.533
0.631
0.706
0.803
1–20
Data Rate Range
Lower Limit (kbps) Upper Limit (Mbps)
4.8
9.6
2.4
4.8
7.2
8.4
2.4
4.3
6.5
7.5
13.0
16.8
8.7
2.4
2.4
4.8
7.2
8.4
9.1
10.8
13.6
15.3
14.4
16.8
2.4
5.2
6.1
6.8
7.8
MN-CDM570A
Revision 3
Type
BNC (female)
15-pin D-sub (male)
9-pin D-sub (female)
15-pin D-sub (male)
9-pin D-sub (male)
RJ-45
EDMAC limited?
3.000
5.000
1.500
3.000
4.500
5.250
1.363
2.727
4.091
Yes – see "Important
4.666
Note" below
4.000
4.666
4.400
0.937
1.430
2.860
4.500
5.250
5.666
6.750
7.875
No
8.500
9.000
9.980
1.462
3.200
3.785
No
4.233
4.818