Comtech EF Data CDM-840 - Manual (Page 33)

CDM-840 Remote Router Revision 2
Introduction MN-CDM840
1–9
Item Description
Supported Protocols
RFC 768 – UDP
RFC 791 – IP
RFC 792 – ICMP
RFC 793 – TCP
RFC 826 – ARP
RFC 856 – Telnet
RFC 862 – Ping
RFC 894 – IP
RFC 959 – FTP
RFC 1112 – IP Multicast
RFC 1213 – SNMP MIB II
RFC 1812 – IPv4 Routers
RFC 2045 – MIME
RFC 2474 – DiffServ
RFC 2475 – DiffServ
RFC 2578 – SMI
RFC 2597 – AF PHB
RFC 2598 – Expedite Forwarding
RFC 2616 – HTTP
RFC 3412 – SNMP
RFC 3416 – SNMPv2
RFC 3418 – SNMP MIB
Item
Description
Outbound (Hub to Remote)
Return (Remote to Hub)
Data Rate 1 – 168 Mbps 16 kbps – 15.35 Mbps
Symbol Rate
1 – 62 Msps (QPSK, 8-PSK)
1 – 47 Msps (16-APSK, 32-APSK)
16 ksps – 4.5 Msps
FEC DVB-S2 VersaFEC
Modulation and Code Rates
• QPSK 1/2, 1/3, 1/4, 2/3, 2/5, 3/4, 3/5, 4/5, 5/6,
8/9, 9/10
• 8-PSK 2/3, 3/4, 3/5, 5/6, 8/9, 9/10
• 16-APSK 2/3, 3/4, 4/5, 5/6, 8/9, 9/10
• 32-APSK 3/4, 4/5, 5/6, 8/9, 9/10
• BPSK 0.488
• QPSK 0.533, 0.631, 0.706, 0.803
• 8-QAM 0.642, 0.711, 0.780
• 16-QAM 0.731, 0.780, 0.829, 0.853
Rolloff 20%, 25% and 35% 20%, 25% and 35%
Encapsulation Enhanced GSE Streamline Encapsulation (SLE)
1.4.2 Bit Error Rate (BER)
Item Description
VersaFEC CODEC BER
BPSK
(With two adjacent carriers,
each 7 dB higher than the
desired carrier) For:
BER=10-5
BER=10-8
Rate 0.488
Guaranteed Eb/No
(typical value in
parentheses):
2.4 dB (2.1 dB)
2.7 dB (2.4 dB)
VersaFEC CODEC BER
QPSK
(With two adjacent carriers,
each 7 dB higher than the
desired carrier) For:
BER=10 -5
BER=10 -8
Rate 0.533 QPSK
Guaranteed Eb/No
(typical value in
parentheses):
2.3 dB (2.0 dB)
2.5 dB (2.2 dB)
Rate 0.631 QPSK
Guaranteed Eb/No
(typical value in
parentheses):
2.8 dB (2.5 dB)
3.0 dB (2.7 dB)
Rate 0.706 QPSK
Guaranteed Eb/No
(typical value in
parentheses):
3.3 dB (3.0 dB)
3.7 dB (3.4 dB)
Rate 0.803 QPSK
Guaranteed Eb/No
(typical value in
parentheses):
3.8 dB (3.5 dB)
4.1 dB (3.8 dB)
VersaFEC CODEC BER
8QAM
(With two adjacent carriers,
each 7 dB higher than the
desired carrier) For:
BER=10 -5
BER=10 -8
Rate 0.642 8QAM
Guaranteed Eb/No
(typical value in
parentheses):
4.6 dB (4.3 dB)
4.9 dB (4.6 dB)
Rate 0.711 8QAM
Guaranteed Eb/No
(typical value in
parentheses):
5.2 dB (4.9 dB)
5.5 dB (5.2 dB)
Rate 0.780 8QAM
Guaranteed Eb/No
(typical value in
parentheses):
5.6 dB (5.3 dB)
6.0 dB (5.7 dB)