CDM-570 & CDM-570L Satellite Modems

CDM-570 & CDM-570L
Satellite Modems
INTRODUCTION
Ideal for optimizing satellite communications, the
CDM-570 and the CDM-570L are designed to meet the
needs of low-cost terminals with 70/140 MHz interfaces
to conventional Up & Down Converters, or L-Band
interfaces to Low Noise Block Converters (LNBs) and
Block Up Converters (BUCs).
The modems include synchronous EIA-530/-422, V.35,
EIA-232 and G.703 interfaces. In addition, an optional
Internet Protocol (IP) Module is available with a
10/100BaseT Ethernet interface for LAN and network
applications.
FEATURES
• CDM-570: 50 to 90 or 100 to 180 MHz IF range
CDM-570L: 950 to 1950 MHz IF range
• Fast acquisition demodulator (± 32 kHz acquisition
range, 64 kbps, Rate 1/2 QPSK: 150 ms average)
• Modulation types: BPSK, QPSK, OQPSK, 8-PSK,
8-QAM, 16-QAM
• Data rate range from 2.4 kbps to 9.98 Mbps
• Forward Error Correction choices include Turbo
Product Coding, Viterbi, Reed-Solomon, and TCM
• Automatic Uplink Power Control (AUPC)
• Embedded Distant-end Monitor and Control (EDMAC)
• Asymmetric Loop Timing
• Built-in 1:1 redundancy controller (Y-cables for data,
simple and inexpensive external module for IF and RF)
• CDM-570: FSK communications to CSAT-5060 or
KST-2000A
• CDM-570L: Operation with LNB and BUC
• CDM-570L: BUC 10 MHz reference and FSK
communications and optional BUC power supplies
• CDM-570L: LNB Power Supply and 10 MHz reference
• Backwards compatible with the CDM-500/CDM-550,
CDM-550T and, CDM-600 and CDM-600L
• Interoperable with SDM-300A, SDM-300L3
• Ethernet M&C interface with Web browser, SNMP and
Telnet
• IP Module option
• Vipersat Management System (VMS)
• 1:1 and 1:10 redundancy switches available
FEATURE ENHANCEMENTS
Enhancing the modem’s performance is easy. Additional
features are added quickly on site, using FAST access
TURBO PRODUCT CODING
The CDM-570 offers all traditional FEC methods and
incorporates an optional Turbo Product Codec (TPC).
TPC is a FEC technique that delivers significant
performance improvement when compared to Viterbi
with concatenated Reed-Solomon. TPC simultaneously
offers increased coding gain, lower decoding delay, and
significant bandwidth savings.
The range of code rates offered spans Rate 5/16
through Rate 0.95, depending on modulation type.
EDMAC OPERATION
A special feature of the CDM-570 is its ability to monitor
and control the distant end of a satellite link using a
Comtech EF Data proprietary overhead channel. This
framed mode is called EDMAC (Embedded Distant-end
Monitor And Control). User data is framed and extra bits
are added to pass control, status, and Automatic Uplink
Power Control information. This process is completely
transparent to the user.
REMOTE CONTROL
The operator may configure and monitor the modem
from the front panel, or through the remote M&C port.
Ten complete configurations may be stored in the
modem. An Event log stores alarm and status
information in non-volatile RAM, while the Link Statistics
log stores link performance (Eb/No and AUPC
performance) for Quality of Service (QoS) reporting
purposes.
In addition to the traditional serial port M&C, the CDM570 offers a 10/100BaseT Ethernet port for management
functions. It incorporates a Web Server (HTTP), SNMP
agent, and Telnet capability.
IP MODULE AND VIPERSAT NETWORKS VMS
When configured with the IP Module, the CDM-570
provides advanced features for maximizing satellite link
efficiency in IP networks.
Optionally, the CDM-570 Modem with IP module can be
integrated with the Vipersat Management System (VMS)
to provide a fully automated network and capacity
management tool designed specifically for satellite
networks. Read more about the IP Module and VMS
capabilities on page 4.
Modems
The architecture is firmware and FPGA-based, and the
internal Flash memory allows easy updating via the
Ethernet port, or front panel USB port. The modem
offers exceptional flexibility and cost-effective
performance in a 1RU enclosure.
codes purchased from Comtech EF Data. To enable
these features, simply enter the code at the front panel.
CDM-570 & CDM-570L Satellite Modems
SYSTEM SPECIFICATIONS
AVAILABLE OPTIONS
Frequency Range
How Enabled
FAST
FAST
FAST
FAST
Input/Output Impedance
Data Interfaces
CDM-570: 50 to 90 or 100 to 180 MHz,
CDM-570L: 950 to 1950 MHz,
100 Hz frequency resolution
CDM-570: 50 or 75Ω
CDM-570L: Transmit and Receive 50Ω,
female Type N connector
EIA-422/-530, V.35, Sync EIA-232,
G.703 T1, G.703 E1 balanced or
unbalanced
Data Rate Range
(1 bps programmable, and fully independent Tx and Rx rates)
Rate
Range
1/2 BPSK
2.4 kbps to 1.50 Mbps
1/2 QPSK/OQPSK
4.8 kbps to 3.00 Mbps
3/4 QPSK/OQPSK
7.2 kbps to 4.50 Mbps
7/8 QPSK/OQPSK
8.4 kbps to 5.25 Mbps
2/3 8-PSK TCM
8.7 kbps to 4.40 Mbps
21/44 QPSK/OQPSK
4.8 kbps to 2.86 Mbps
TPC
3/4 QPSK/OQPSK TPC
7.2 kbps to 4.50 Mbps
7/8 QPSK/OQPSK TPC
8.4 kbps to 5.25 Mbps
0.95 QPSK/OQPSK TPC
9.1 kbps to 5.66 Mbps
3/4 8-PSK/8-QAM TPC
10.8 kbps to 6.75 Mbps
7/8 8-PSK/8-QAM TPC
13.6 kbps to 7.875 Mbps
0.95 8-PSK/8-QAM TPC
15.3 kbps to 8.50 Mbps
3/4 16-QAM TPC
14.4 kbps to 9.00 Mbps
7/8 16-QAM TPC
16.8 kbps to 9.98 Mbps
Uncoded
4.8 kbps to 5.00 Mbps
(See the CDM-570 or CDM-570L manuals for details)
Scrambling
Mode dependent - ITU V.35, or
proprietary externally synchronized
FEC Options
Viterbi
Rate 1/2 BPSK, QPSK/OQPSK
Rate 3/4 and 7/8 QPSK/OQPSK
and 16-QAM w/RS
Pragmatic TCM
8-PSK 2/3
(Closed Network – Not IESS-310)
Turbo Product Coding
Rate 21/44 BPSK, 5/16 BPSK,
Rate 21/44 QPSK/OQPSK
Rate 3/4 and Rate 7/8 QPSK/OQPSK,
8-PSK and 16-QAM
Rate 0.95 QPSK/OQPSK and 8-PSK
Reed-Solomon
Proprietary 220/200 and 200/180
modes available
Uncoded
BPSK, QPSK/OQPSK
M&C Interface
EIA-232, EIA-485 (2- or 4-wire),
Ethernet 10/100BaseT
Form C Relays
Tx, Rx traffic alarms and Unit faults
FAST
Hardware
Hardware
Hardware
Hardware
Hardware
Hardware
Hardware
FAST
FAST
FAST
FAST
VMS
Option
Variable Rate to 2.048 Mbps
Variable Rate to 5 Mbps
Variable Rate to 9.98 Mbps
8-PSK, 8-QAM modulation
(8-QAM is TPC only)
16-QAM modulation
Reed-Solomon Codec Board
Turbo Codec Board
CDM-570: Power Supply, AC Input
CDM-570: Power Supply, -48 DC Input
CDM-570L: Block Up Converter (BUC)
24 VDC, 100W power supply, AC Input or
48 VDC Input
CDM-570L: Block Up Converter (BUC)
48 VDC, 180W power supply, AC Input or
48 VDC Input
IP Module
IP Module Options:
Header Compression
Payload Compression
Quality of Service (QoS) – 3 modes
3x DES Data Encryption
Vipersat Management System Integration
ACCESSORIES
CRS-170a
CRS-180
CRS-280
CRS-300
CDM-570L: 1:1 Modem Redundancy IF
Switch
CDM-570: 1:1 Modem Redundancy IF Switch
CDM-570: IF Switch Module
1:N Modem Redundancy Switch
ENVIRONMENTAL AND PHYSICAL
Temperature
Power Supply
Power Consumption
(See Manual)
Physical Dimensions
Weight
CE Mark
FCC Approval
Operating: 0 to 50ºC (32 to 122ºF)
Storage: -25 to 85ºC (-13 to 185ºF)
100 to 240 VAC, 50/60 Hz
CDM-570: 29W typical (32W max) w/o IP
Module
CDM-570L: 22W typical (32W max) w/o BUC
or IP Module
PSU 250W maximum with 180W BUC PSU
CDM-570: 1RU high, 12 inches deep (30.5cm)
CDM-570L: 1RU High, 16 inches deep
(40.6 cm)
CDM-570: 7 lbs (3.2 kg)
CDM-570L: 16 lbs (7.2 kg) including 180W
BUC supply
EMC, Safety (70/140 MHz)
EN55022 Class B (Emissions),
EN50082-1 Part 1 (Immunity)
EDM-570L: EN60950 (Safety)
CDM-570L: FCC Part 15 Class B
CDM-570 Satellite Modem Back Panel
CDM-570L Satellite Modem Back Panel (shown with optional IP module)
Optimizing Satellite Communications
DEMODULATOR
Input Power Range
Max Composite Level
Acquisition Range
Acquisition Time
MODULATOR
CDM-570
-30 to -60 dBm
CDM-570L
(-130 + 10 Log
Symbol Rate) dBm
minimum, (-90 + 10
Log Symbol Rate)
dBm maximum
+35 dBc, up to
+35 dBc, up to
-5 dBm
-5 dBm
Normal mode: ± 1
Normal mode: ± 1 to
to ± 32 kHz (1 kHz
± 32 kHz (1 kHz
steps)
steps)
Wide mode: to ± 200,
symbol rates above
625 ksps
Example: 150 ms average at 64 kbps Rate
1/2 QPSK, and ± 32 kHz acquisition range
EXAMPLE BER PERFORMANCE
Met with two adjacent carriers 7 dB higher
Guaranteed Eb/No, in dB (Typical values in parentheses)
Viterbi
(B, QPSK/OQPSK)
10-5
10-7
1/2
5.4 (4.9)
6.7 (6.2)
3/4
6.8 (6.3)
8.2 (7.7)
7/8
7.7 (7.2)
9.0 (8.6)
Viterbi & Concatenated Reed-Solomon 220/200
or 200/180
(B, QPSK/OQPSK)
10-5
10-7
1/2
4.3 (4.0)
4.5 (4.2)
Turbo Product Codec
(QPSK/OQPSK)
10-6
10-8
(8-PSK)
10-6
10-8
(8-QAM)
10-6
10-8
21/44
2.9 (2.6)
3.3 (2.8)
3/4
6.2 (5.8)
6.8 (6.3)
3/4
6.5 (6.1)
7.2 (6.8)
3/4
5.6 (4.7)
6.0 (5.2)
3/4
3.8 (3.4)
4.4 (4.0)
7/8
7.0 (6.6)
7.2 (6.8)
7/8
6.6 (6.2)
6.8 (6.4)
7/8
6.5 (6.0)
6.9 (6.5)
7/8
0.95
4.3 (4.0)
6.4 (6.0)
4.5 (4.2)
6.9 (6.5)
0.95
9.3 (8.9)
10.3 (9.9)
0.95
9.6 (9.2)
10.6(10.2)
Frequency Stability
Output Power
Accuracy
Phase Noise
Output Spectrum/
Filtering
Harmonics and
Spurious
Transmit On/Off Ratio
External Tx Carrier
Off
Tx Clock options
CDM-570
CDM-570L
±1 ppm, 0º to 50ºC
±0.06 ppm, 0º to
(32º to 122ºF)
50ºC (32º to 122ºF)
0 to –20 dBm, 0.1 dB
steps
± 0.5 dB over
± 1.0 dB over
frequency and
frequency and
temperature
temperature
< 0.75 degrees RMS < 1.2 degrees RMS
double-sided,
double-sided,
100 Hz to 1 MHz
100 Hz to 1 MHz
Meets IESS-308/-309 power spectral mask
< -55 dBc/4 kHz
(Typically < -60 dBc/4 kHz)
55 dB minimum
By TTL LOW signal, or RTS
Internal (SCT), External (TT), Loop timing
LOW-NOISE BLOCK CONVERTER (LNB) SUPPORT
(CDM-570 Only)
LNB Voltage
10 MHz Reference
Power Level
+13, +18, and +24 VDC @ 500 mA maximum
-3 dBm ± 3 dB via Rx center conductor
BLOCK UP CONVERTER (BUC) SUPPORT
(CDM-570L Only)
BUC Voltage
10 MHz Reference
Power Level
FSK Support
24 VDC, 4A, 100W (internally fitted option)
48 VDC, 3A, 180W (internally fitted option)
-3 dBm ± 3 dB via Rx center conductor
Via Tx center conductor with FSK BUCs
8-PSK TCM/RS (Closed Network RS)
(See the CDM-570 manual for a complete listing of the performance of
all FEC types, Code Rates, and Modulation types.)
Receive Buffer
512, 1024, 2048, 4096, 8182, or 16384 bits
Receive Clock Options Rx Satellite, Tx Terrestrial,
Internal Reference
Clock Tracking
± 100 ppm minimum
External Reference
Female BNC connector 1, 2, 5, 10, or
Input
20 MHz
Monitor Functions
Eb/No, Frequency Offset, BER, Buffer fill
status, Rx signal level
www.comtechefdata.com
IP Module &
VMS Integration
INTRODUCTION
NETWORKING PROTOCOLS
With an innovative architecture to support IP networking, an
IP-Module equipped CDM-570 and CDM-570L meets many
customer requirements for Point-to-Point and Point-to-MultiPoint applications. When configured with the IP Module, the
modems provide advanced features for improving satellite link
efficiency in IP networks:
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
STANDARD FEATURES
•
•
•
•
•
easyConnect™ for set up with minimal configuration
Static IP routing for unicast and multicast
Powerful network management via SNMP, Web, or Telnet
IGMP v1 and v2
Symmetric as well as asymmetric operation for maximum
bandwidth efficiency
• Point-to-Point or Point-to-Multi-Point configuration
OPTIONAL FEATURES
•
•
•
•
Header Compression (IP/TCP and IP/UDP/RTP)
Payload Compression
3x DES Data Encryption
Quality of Service (QoS)
HEADER COMPRESSION OPTION
Configurable on a per route basis, header compression reduces
the required Voice over Internet Protocol (VoIP) bandwidth by
as much as 60%. Example: A G.729 voice codec, operating at
8 kbps, will occupy 32 kbps once encapsulated into IP framing
on a LAN. Using IP/UDP/RTP Header Compression, the same
traffic only needs 10.8 kbps total WAN satellite bandwidth to
cross the link. Normal Web/HTTP traffic can be reduced an
additional 10% via IP/TCP header compression.
PAYLOAD COMPRESSION OPTION
Compressing payload reduces both the data frame size and
satellite bandwidth required to transmit across the link.
Configurable on a per route basis, Payload Compression
optimizes traffic and reduces bandwidth up to 40%.
DATA ENCRYPTION OPTION
The IP Module provides 3xDES data encryption to prevent
unauthorized access to data over the satellite link, and is
configurable on a per route basis.
QUALITY OF SERVICE OPTION
The IP Module supports multi-level QoS to reduce jitter and
latency for real time traffic, provides priority treatment to
mission critical applications and allows non-critical traffic to use
the remaining bandwidth. Three modes are available,
Max/Priority, Min/Max and DiffServ.
• Max/Priority - Assign a maximum bandwidth that any traffic
flow can utilize combined with 8 levels of prioritization
• Min/Max - Set the minimum and maximum bandwidth for userdefined classes of traffic to ensure that a certain level of
bandwidth is always applied
• DiffServ – Provide higher priority to some applications over
others; Industry-standard method of adding
network-wide QoS enabling seamless co-existence in
networks that already have DiffServ
2114 West 7th Street, Tempe, Arizona 85281 USA
RFC 2045 – MIME
RFC 2236 – IGMP v2
RFC 2474 – Diffserv
RFC 2475 – Diffserv
RFC 2578 – SMI
RFC 2597 – AF PHB
RFC 2598 – Expedite Forwarding
RFC 2616 – HTTP
RFC 2821 – SMTP
RFC 3412 – SNMP
RFC 3416 – SNMPv2
RFC 3418 – SNMP MIB
OPERATIONS & MAINTENANCE
Configuration and management
Console interface
SNMP with MIB II and private, modem-specific MIB
Telnet
HTTP
Software/firmware (IP Module) upgrade via FTP
Traffic management statistics
Faults and alarms
Configuration backup and restoral
SECURITY
Password Protection
Access List
CONSOLE PORT
EIA-232 (RJ-12 connector)
Interface
REMOTE PORT
EIA-232 or EIA-485 (2- or 4-wire)
Interface
VMS NETWORK & BANDWIDTH MANAGEMENT
Vipersat Networks’ VMS provides traditional monitor and control
functions more efficiently than other M & C protocols, and allows
enhanced capacity and bandwidth management capabilities for
the modems. VMS gives satellite service providers and
enterprise operators the ability to dynamically adjust bandwidth
based on application, load or schedule.
VMS also allows the modems to switch from shared to dedicated
mode. Inbound transmissions from remotes can be switched
from a shared Selective Time Division Multiple Access (STDMA)
mode to a dedicated Single Carrier Per Channel (SCPC)
connection manually or automatically, triggered by application or
load, or on a scheduled basis. This enables the network to more
effectively handle connection-oriented applications and reduces
both latency and network congestion. Through VMS, dynamic
point-to-point mesh connections can be established between
remotes. The result is an economical and flexible network,
enabling bandwidth to be shared and directed where it is
needed for any mix of IP voice, video or data traffic.
Voice 1 480 333 2200
Fax 1 480 333 2540
Email sales@comtechefdata.com
Comtech EF Data reserves the right to change specifications of products described in this document at any time without notice and without obligation to notify any person of such changes. Information in this document may differ from
that published in other Comtech EF Data documents. Refer to the website or contact Customer Service for the latest released product information.
© 2006 Comtech EF Data
Part Number ds-cdm570-570l.doc
7/20/2006