CDM-570A/L & CDM-570A/L-IP Satellite Modems
Satellite Modems

Overview
The CDM-570A and the CDM-570AL are our next generation satellite modems that provide
industry-leading performance and flexibility in a 1 RU package at a very competitive price.
With support for VersaFEC-2 high performance LDPC and VersaFEC® low latency LDPC
Forward Error Correction (FEC), the revolutionary DoubleTalk® Carrier-in-Carrier® bandwidthcompression, and optimized transmit filter rolloffs, the CDM-570A and CDM-570AL provide
significant bandwidth savings. This combination of advanced technologies enables multidimensional optimization, allowing satellite communications users to:
Minimize operating expenses (OPEX)
Maximize throughput without using additional transponder resources
Maximize availability (margin) without using additional transponder resources
Minimize capital expenses (CAPEX) by allowing a smaller BUC/amplifier and/or antennaOr, a combination to meet specific business needs
The modems are available with 70/140 MHz or L-Band IF and EIA-530/-422, V.35, sync EIA232 and G.703 T1/E1 data interfaces. The CDM-570A/L-IP include a high-performance packet
processor for IP-centric applications.

Typical Users• Enterprise• Offshore & Maritime• Mobile Network Operators• Satellite Service Providers• Internet Service Providers
Common Applications• Enterprise Networks• Offshore & Maritime
Communications• Mobile Backhaul• Communications on-the-Move• Disaster Recovery & Emergency
Communications• Satellite News Gathering

Features
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DoubleTalk Carrier-in-Carrier bandwidth compression
Carrier-in-Carrier Automatic Power Control (CnC-APC)
VersaFEC-2 High Performance LDPC
VersaFEC low latency LDPC
VersaFEC-2 and VersaFEC Adaptive Coding & Modulation (ACM) for point-to-point IP circuits
5%, 10%, 15%, 20%, 25% and 35% Transmit Filter Rolloff
Data rate range from 2.4 kbps to 10.239 Mbps
CDM-570A: 50 to 90 or 100 to 180 MHz IF range
CDM-570AL: 950 to 2250 MHz IF range
Modulation: BPSK, QPSK, OQPSK, 8PSK/8-QAM/8-ARY, 16-QAM/16-ARY, 32-ARY
Forward Error Correction (FEC) options include VersaFEC-2, VersaFEC, Turbo Product Code (TPC), Viterbi, Reed-Solomon, andTrellis Coded Modulation (TCM)
Data Interfaces: EIA-422/530, V.35, G.703 T1/E1, sync EIA-232, 10/100Base-T Ethernet (CDM-570A-IP and CDM-570AL-IP)
High-performance Packet Processor with 10/100Base-T Ethernet port (CDM-570A-IP and CDM-570AL-IP)
Vipersat Management System (VMS) integration (CDM-570A-IP and CDM-570AL-IP)
Header and payload compression ((CDM-570A-IP and CDM-570AL-IP)
Quality of Service (QoS) (CDM-570A-IP and CDM-570AL-IP)
Management via SNMP, Web, Telnet or Command Line Interface (CDM-570A-IP and CDM-570AL-IP)
G.703 clock extension
Automatic Uplink Power Control (AUPC)
Embedded Distant-end Monitor and Control (EDMAC/EDMAC2)CarrierID using Comtech EF Data’s MetaCarrier® spread spectrum technology
Redundancy options
CDM-570A: FSK communications to CSAT-5060 or KST-2000A
CDM-570AL: 10 MHz reference for BUC, FSK communications and optional BUC power supply
CDM-570AL: 10 MHz reference and power supply for LNB

www.comtechefdata.com

Doubletalk Carrier-in-Carrier
DoubleTalk Carrier-in-Carrier, based on patented “Adaptive Cancellation” technology, allows transmit and receive carriers of a duplex
link to share the same transponder bandwidth. DoubleTalk Carrier-in-Carrier is complementary to all advances in modem technology,
including advanced FEC and modulation techniques. As these technologies approach theoretical limits of power and bandwidth
efficiencies, DoubleTalk Carrier-in-Carrier utilizing advanced signal processing techniques provides a new dimension in bandwidth
efficiency.
Figure 1 shows the typical full-duplex satellite link, where the two carriers are adjacent to each other.
Figure 2 shows the typical DoubleTalk Carrier-in-Carrier operation, where the two carriers are overlapping, thus sharing the same
spectrum.

Figure 1

Figure 2

When observed on a spectrum analyzer, only the Composite is visible. Carrier 1 and Carrier 2 are shown in Figure 2 for reference only.
As DoubleTalk Carrier-in-Carrier allows equivalent spectral efficiency using a lower order modulation and/or code rate, it can reduce thepower required to close the link thereby reducing CAPEX by allowing a smaller BUC/amplifier and/or antenna. Alternatively, DoubleTalk
Carrier-in-Carrier can be used to achieve very high spectral efficiencies E.g., DoubleTalk Carrier-in-Carrier when used with 32-ARY
modulation can provide bandwidth efficiency exceeding 8 bps/Hz.
When combined with VersaFEC-2 or VersaFEC and optimized transmit filter rolloffs, DoubleTalk Carrier-in-Carrier provides
unprecedented savings in transponder bandwidth and power utilization. This allows for its successful deployment in bandwidth-limited
and power-limited scenarios, as well as reduction in earth station BUC/amplifier power requirements.
Carrier-in-Carrier® is a Registered Trademark of Comtech EF Data
DoubleTalk® is a Registered Trademark of Raytheon Applied Signal Technology
VersaFEC is a Registered Trademark of Comtech EF Data

Carrier-in-Carrier Automatic Power Control (CnC-APC)
The patent-pending Carrier-in-Carrier Automatic Power Control (CnC-APC) mechanism enables modems on both sides of a CnC link toautomatically measure and compensate for rain fade while maintaining the Total Composite Power. In addition to automaticallycompensating for rain fade, CnC-APC also enables the modems to share link margin, i.e. a modem can effectively transfer excess link
margin to a distant end modem experiencing fade, thereby further enhancing overall availability.

VersaFEC-2 High Performance LDPC Forward Error Correction
CDM-570A now offers a new high performance LDPC FEC specifically designed to optimize performance at low to mid-tier sysmbol
rates. VersaFEC-2 long-block provides 38 ModCods (BPSK to 32-ARY) with performance generally better than DVB-S2 at significantly
lower latency and short-block provides 36 ModCods (BPSK to 32-ARY) with higher coding gain than first generation VersaFEC andsimilar latency. All higher order constellations are quasi-circular for optimal peak-to-average performance. ACM operation is supported
for long block and short block for IP/Ethernet traffic in a point-to-point topology.

VersaFEC Forward Error Correction
VersaFEC is a patent-pending system of LDPC codes designed to provide maximum coding gain while minimizing latency. CDM570A/L support Constant Coding & Modulation (CCM) mode of operation with serial and G.703 data interfaces. CDM-570A/L-IP also
support Adaptive Coding & Modulation (ACM) for IP/Ethernet traffic when operating in point-to-point topology.
The Ultra Low Latency (ULL) codes provide even lower latency compared to standard VersaFEC codes.

Optimized Transmit Filter Rolloffs
CDM-570A/L support 5%, 10%, 15%, 20%, 25% and 35% transmit filter rolloff allowing users to further optimize the link. Carrier-inCarrier combined with VersaFEC and optimized transmit filter rolloffs can provide 50% or more BW savings compared to legacy
modems.

EDMAC & AUPC Operation
The CDM-570A/L-IP has the ability to monitor and control the distant end of a point-to-point satellite link using EDMAC or EDMAC2.
User data is framed and bits are added to transfer control, status, and AUPC information.

Management
The modems support SNMP, web-based and command line interfaces for management. The modems can also be configured andmonitored from the front panel, or through the remote M&C port. Ten complete RF 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 monitoring and reporting purposes.

G.703 Clock Extension
Mobile networks require precise synchronization of base stations, which is a challenge when using IP backhaul. Most operators areforced to use GPS-based external equipment for site synchronization. CDM-570A/L-IP offers a G.703 clock extension option that
propagates a high stability reference from hub to the remote. This process does not require additional bandwidth.

CarrierID
CDM-570A now incorporate a patent-pending carrier identification (CID) technique that uses Comtech EF Data’s MetaCarrier® spread
spectrum technology to embed a unique carrier identification sequence for the transmitted carrier to help identify interfering carriers.
CDM-570A with MetaCarrier® is used in tandem with the Comtech EF Data’s MCDD-100 MetaCarrier® Detection Device to provide acomplete MetaCarrier embedding and decoding solution.

High Performance Packet Processor (CDM-570A/L-IP)
The high-performance Packet Processor enables efficient IP networking and transport over satellite with header compression, payload
compression and advance Quality of Service. The advanced QoS combined with header and payload compression ensures the highest
quality of service with minimal jitter and latency for real-time traffic, priority treatment of mission critical applications and maximum
bandwidth efficiency.
The packet processor supports Routed mode as well as Managed Switch Mode of operation. In managed switch mode, it operates as alayer 2 switch with VLAN support, enabling seamless integration with existing infrastructure while providing full optimization including
header compression and payload compression and advanced QoS.
The CDM-570A/L-IP supports a wide range of applications and network topologies.

Header Compression Option
The packet processor incorporates industry-leading header compression for IP/Ethernet traffic. In Routed mode, header compression
can be enabled on a per route basis and can reduce the typical 40 byte IP/UDP/RTP header to an average of 2 bytes. For TCP/IP, the40 byte header is reduced to an average of 4 bytes. In Managed switch mode, header compression also compresses the Ethernet
header. So a 58 byte Ethernet header with VLAN and IP/UDP/RTP header can be compressed to as little as 2 bytes.
For applications such as VoIP, header compression can provide bandwidth savings exceeding 60%. E.g. 8 kbps G.729 voice
transported in an IP/UDP/RTP datagram typically requires 24 kbps in a routed network or approximately 32.4 kbps in a switched
network including VLAN header and FCS. With header compression, the same voice call needs approx 9 kbps (before HDLC
encapsulation) – a savings of over 60% in a routed network or over 70% in a switched network. Bandwidth requirement for typical
Web/HTTP traffic is also reduced with TCP/IP header compression.

Payload Compression Option
Implemented in the hardware for maximum throughput and efficiency, payload compression can typically reduce the required satellite
bandwidth by 20-30%.

Quality of Service (QoS) Option
Today’s networks have to support a wide range of applications with diverse requirements. The packet processor incorporates advanced
QoS mechanism to ensure the highest service quality with minimal jitter and latency for real-time traffic, priority treatment of mission
critical applications while maximizing bandwidth utilization. Four different QoS modes are available:
DiffServ – Industry-standard method of providing QoS enabling seamless co-existence in networks that implement DiffServ.
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Max/Priority – Provides eight levels of traffic prioritization with the ability to limit maximum traffic per priority class
Min/Max – Provides a Committed Information Rate (CIR) to each user defined class of traffic with the ability to allow a higher
burstable rate depending on availability
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VLAN Priority/Max – Available in Managed switch mode when using VLANs. Uses 3-bit 802.1p VLAN priority with ability to set
a maximum data rate per priority
Packet processor includes a powerful classifier capable of classifying packets based on Application/Protocol, Source IP
Address/Subnet, Destination IP Address/Subnet, Source Port / Range and Destination Port / Range.

Vipersat Management SystemDynamic SCPC carrier allocation & true bandwidth-on-demand
User-defined policies for upstream carrier switching
Star and dynamic mesh capabilities using single hop on-demand
Guaranteed bandwidth capability

VMS Network & Bandwidth Management
A Vipersat-powered network integrates these advanced modems with a powerful network management tool, the Vipersat Management
System (VMS). In addition to the traditional monitoring and control of the CDM-570A/L-IP modems and the demodulators, the VMS
allows these devices to share bandwidth, and when needed, switch automatically to a dedicated SCPC channel. In a Vipersat-powered
network, the CDM-570A/L-IP modem takes advantage of its fast acquisition demodulation to allow it to operate in a shared mode.
Inbound transmissions (from remote to hub) can be switched from a shared Selective Time Division Multiple Access (STDMA) mode toa dedicated Single Carrier Per Channel (SCPC) connection via a variety of user defined policies or triggers. This enables the network to
more effectively handle real-time connection-oriented applications and reduces both latency and network congestion. Through VMS,
dynamic point-to-point mesh connections can also be established between remotes.

Upstream SwitchingThrough protocol classification in the remote terminals, the modem initiates automatic switching. VMS establishes dSCPC bandwidth
based on policies that can be individually enabled on a per-remote basis, or globally enabled. Policies can be configured for a variety of
applications such as VoIP, video (VTC), or based on a load, or via a schedule, Type of Service (ToS), or QoS rules such as IP port or
IP address and protocol type. Operators are able to set minimum and maximum data rates for each remote as well as excess data
rates for an initial upstream switch.

Vipersat Operation Mode
Vipersat operation is enabled via a FAST feature code. Networks can easily start off in point-to-point or point-to-multipoint
configurations. As the network grows and users wish to take advantage of the bandwidth on-demand savings by implementing aVipersat network, modems can easily be upgraded to Vipersat mode.

FAST Feature Enhancements
The FAST codes make it easy to upgrade the modem capability in the field. New features can be added on site, using FAST accesscodes purchased from Comtech EF Data that can be entered via the front panel.

Specifications
Data Rate Range(See user manualfor details)
Symbol Rate

Frequency Range
Data Interfaces

2.4 kbps to 10.239 (depending on modulation, FEC andframing), 1 bps step with fully independent TX and RX rates
4.8 ksps to 3.0 Msps (subject to data rate range, modulation
and FEC) [Please see user manual for details on supported
symbol rates for different modulation and FEC]
CDM-570A: 50 to 90 or 100 to 180 MHz, 100 Hz resolution
CDM-570AL: 950 to 2250 MHz, 100 Hz resolution
EIA-422/-530 DCE, V.35 DCE, Sync EIA-232, G.703 T1
balanced, G.703 E1 balanced or unbalanced, 10/100Base-T
Ethernet (option)

Modulation & FEC Options
VersaFEC-2 (Long Block)
BPSK 0.488
QPSK 0.489, 0.537, 0.586, 0.611, 0.635,
0.660, 0.684, 0.733
8-ARY 0.521, 0.537, 0.562, 0.586,
0.611, 0.635, 0.660, 0.684, 0.708, 0.733
16-ARY 0.586, 0.611, 0.635, 0.660,
0.684, 0.708, 0.733, 0.757, 0.782
32-ARY 0.660, 0.684, 0.708, 0.733,
0.757, 0.782, 0.801, 0.831, 0.855, 0.879
VersaFEC-2 (Short Block)
BPSK Rate 0,489
QPSK Rate 0.489, 0.537, 0.586, 0.611,
0.635, 0.660, 0.684, 0.733
8-ARY Rate 0.521, 0.537, 0.562, 0.586,
0.611, 0.635, 0.660, 0.684, 0.708, 0.733
16-ARY Rate 0.586, 0.611, 0.635, 0.660,
0.684, 0.708, 0.733, 0.757, 0.782
32-ARY Rate 0.660, 0.684, 0.708, 0.733,
0.757, 0.782, 0.801, 0.831
VersaFECBPSK 0.488
QPSK 0.533
QPSK 0.631
QPSK 0.706
QPSK 0.803
8-QAM 0.576 (ECCM)
8-QAM 0.642
8-QAM 0.711

Data Rate Range
18.115 kbps to 1.468 Mbps
(Minimum 37 ksps)
36.230 kbps to 4.397 Mbps
(Minimum 37 ksps)
125.081 kbps to 6.596 Mbps
(Minimum 80 ksps)
234.527 kbps to 9.381 Mbps
(Minimum 100 ksps)
824.511 kbps to 10.239 Mbps
(Minimum 250 ksps)
18.115 kbps to 0.489 Mbps
(Minimum 37 ksps)
36.230 kbps to 1.465 Mbps
(Minimum 37 ksps)
125.081 kbps to 2 Mbps
(Minimum 80 ksps)
234.527 kbps to 2 Mbps
(Minimum 100 ksps)
824.511 kbps to 2 Mbps
(Minimum 250 ksps)
2.4 kbps to 1.462 Mbps
5.2 kbps to 3.200 Mbps
6.1 kbps to 3.785 Mbps
6.8 kbps to 4.233 Mbps
7.8 kbps to 4.818 Mbps
8.3 kbps to 5.179 Mbps
9.3 kbps to 5.782 Mbps
10.3 kbps to 6.401 Mbps

8-QAM 0.780
11.3 kbps to 7.021 Mbps
16-QAM 0.644 (ECCM)
12.4 kbps to 7.726 Mbps
16-QAM 0.731
14.1 kbps to 8.776 Mbps
16-QAM 0.780
15 .0 kbps 9.361 Mbps
16-QAM 0.829
16.0 kbps to 9.946 Mbps
16-QAM 0.853
16.4 kbps to 10.239 Mbps
VersaFEC Ultra Low Latency (ULL) Codes
BPSK 0.493 (ULL)
2.4 kbps to 1.479 Mbps
QPSK 0.493 (ULL)
4.8 kbps to 2.959 Mbps
QPSK 0.654 (ULL)
6.3 kbps to 3.923 Mbps
QPSK 0.734 (ULL)
7.0 kbps to 4.405 Mbps
TPC
BPSK 5/16
2.4 kbps to 0.937 Mbps
BPSK 21/44
2.4 kbps to 1.430 Mbps
QPSK/OQPSK 21/44
4.8 kbps to 2.860 Mbps
QPSK/OQPSK 3/4
7.2 kbps to 4.500 Mbps
QPSK/OQPSK 7/8
8.4 kbps to 5.250 Mbps
QPSK/OQPSK 0.95
9.1 kbps to 5.666 Mbps
8PSK/8-QAM 3/4
10.8 kbps to 6.750 Mbps
8PSK/8-QAM 7/8
13.6 kbps to 7.875 Mbps
8PSK/8-QAM 0.95
15.3 kbps to 8.500 Mbps
16-QAM 3/4
14.4 kbps to 9.000 Mbps
16-QAM 7/8
16.8 kbps to 9.980 Mbps
Viterbi
BPSK 1/2
2.4 kbps to 1.500 Mbps
QPSK/OQPSK 1/2
4.8 kbps to 3.000 Mbps
QPSK/OQPSK 3/4
7.2 kbps to 4.500 Mbps
QPSK/OQPSK 7/8
8.4 kbps to 5.250 Mbps
Viterbi + Reed Solomon
BPSK 1/2
2.4 kbps to 1.363 Mbps
QPSK/OQPSK 1/2
4.3 kbps to 2.727 Mbps
QPSK/OQPSK 3/4
6.5 kbps to 4.090 Mbps
QPSK/OQPSK 7/8
7.5 kbps to 4.666 Mbps
16-QAM 3/4
13.0 kbps to 4.000 Mbps
16-QAM 7/8
16.8 kbps to 4.666 Mbps
TCM + Reed Solomon
2/3 8PSK TCM
8.7 kbps to 4.400 Mbps
(Closed network)
UncodedUncoded BPSK
4.8 kbps to 3.000 Mbps
Uncoded QPSK/OQPSK
9.6 kbps to 5.000 Mbps
Note: Data rate specifications reflect CDM-570A/L or CDM-570A/L-IP modem
operating in non-Vipersat mode

Networking Protocols (With optional IP Module)
Mode dependent – ITU V.35, or proprietary
externally synchronized
CDM-570A: matched for 50/75 , 17 dB minimum
return loss, BNC connector
CDM-570AL: transmit and receive 50 , > 17 dB(950 MHz to 2250 MHz) and >19 dB (1000 MHz to1900 MHz) minimum return loss, female Type N
connector
1, 2, 5, or 10 MHz, BNC connector
TX, RX traffic alarms and unit faults

Scrambling
Input/Output ImpedanceExternal Reference Input
Form C Relays

Accuracy
Phase Noise

Output Spectrum/
Filtering
Alpha (Rolloff)
Harmonics and Spurious
Transmit On/Off Ratio
External TX Carrier Off
TX Clock Options

CDM-570A
CDM-570AL
1 ppm, 0º to 50ºC
0.06 ppm, 0º to 50ºC
(32º to 122ºF)(32º to 122ºF)
0 to –25 dBm, 0.1 dB
0 to –40 dBm, 0.1 dB
steps
steps
 0.5 dB over frequency
 1.0 dB over frequency
and temperatureand 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
5%, 10%, 15%, 20%, 25% and 35%-60 dBC/4 kHz from 600 to 2600 MHz (L-Band), from 1
to 400 MHz (IF)55 dB minimum
By TTL LOW signal, or RTS
Internal (SCT), external (TT), loop timing withsymmetric or asymmetric operation (data interface
dependent)

Demodulator
Input Power Range

Max Composite Level
Acquisition Range

Acquisition Time

Plesiochronous/
Doppler Buffer
Receive Clock Options

Clock Tracking
Monitor Functions

CDM-570A-30 to -60 dBm

CDM-570AL-130 + 10 log symbol rate,dBm (minimum)-90 + 10 log symbol rate,dBm (maximum)+35 dBc, up to+40 dBc, up to-5 dBm absolute max.
-5 dBm absolute max.
 1 to  32 kHz,
 1 to  32 kHz,
1 kHz step
1 kHz step, symbol rate <=625 ksps
 1 to  200 kHz,
1 kHz step, symbol rate >625 ksps
Highly dependent on data rate, FEC rate, anddemodulator acquisition range. Example:
120 ms average at 64 kbps, Viterbi Rate 1/2 QPSK, ±10 kHz acquisition sweep range, 6 dB Eb/No±128, 256, 512, 1024, 2048, 4096, 8192, 16384 or
32768 bits
Buffer disabled (RX satellite), buffer enabled(symmetric or asymmetric operation) (data interface
dependent)
 100 ppm minimum
Eb/No, frequency offset, BER, buffer fill status, RX
signal level

DoubleTalk Carrier-in-Carrier
Delay Range
Power Spectral Density Ratio(Interferer to Desired)
Maximum Symbol Rate Ratio
Eb/No Degradation

Satellite Restrictions

0 to 330 ms-7 dB to +7 dB
3:1 (TX:RX or RX:TX)
0 dB Power Spectral Density Ratio
BPSK/QPSK/OQPSK: 0.3 dB
8-QAM: 0.4 dB
8PSK: 0.5 dB
16-QAM: 0.6 dB+10 dB power spectral density ratio
Additional 0.3 dB
Satellite in “loop-back” mode (i.e., the transmit
station can receive itself)“Non-processing” satellite (i.e., does notdemodulate or remodulate the signal)

RFC 959 – FTP
RFC 1112 – IP Multicast
RFC 1213 – SNMP MIB II
RFC 1812 – IPv4 Routers
RFC 2045 – MIME
RFC 2236 – IGMP v2
RFC 2474 – Diffserv
RFC 2475 – Diffserv

RFC 2578 – SMI
RFC 2597 – AF PHB
RFC 2598 – Exp Forwarding
RFC 2616 – HTTP
RFC 2821 – SMTP
RFC 3412 – SNMP
RFC 3416 – SNMPv2
RFC 3418 – SNMP MIB

Low-Noise Block Converter (LNB) Support (CDM-570AL)LNB Voltage
LNB Reference

Modulator
Frequency Stability(With Internal Reference)
Output Power

RFC 768 – UDP
RFC 791 – IP
RFC 792 – ICMP
RFC 793 – TCP
RFC 826 – ARP
RFC 856 – Telnet
RFC 862 – Ping
RFC 894 – IP

Selectable OFF, 13 VDC or 18 VDC
10 MHz via RX center conductor, Selectable ON/OFF
0.0 dBm ± 5 dB

Block Up Converter (BUC) Support (CDM-570AL)
BUC Voltage

24 VDC, 90 W @ 50°C, 100 W @ 30°C
(internally fitted option)
48 VDC, 150 W @ 50°C, 180 W @ 30°C
(internally fitted option, not available with -24 VDC input)
10 MHz via TX center conductor, Selectable ON/OFF
0.0 dBm ± 5 dB
Via TX center conductor with FSK BUCs

BUC Reference
FSK Support

Environmental & Physical
TemperaturePower Supply

Power Consumption(See Manual For Details)
Dimensions(height x width x depth)

WeightOperating: 0 to 50°C (32 to 122°F)
Storage: -25 to 85°C (-13 to 185°F)
100 to 240 VAC, 50/60 Hz-24 VDC (HW option)-48 VDC (HW option)
CDM-570A: 29 W typical (32 W max.) (w/o IP module)CDM-570AL: 29 W typical (32 W max.) (w/o BUC, w/o
IP module)CDM-570A: 1.75” x 19” x 13”(4.4 x 48.3 x 33 cm)
CDM-570AL: 1.75” x 19” x 16”(4.4 x 48.3 x 40.6 cm)
CDM-570A: 6.3 lbs (2.86 kg) (w/o IP Module)CDM-570A-IP: 6.6 lbs (2.99 kg)
CDM-570AL: 7.2 lbs (3.27 kg) (w/o BUC P/S, w/o IP
Module)CDM-570AL-IP: 8.5 lbs (3.86 kg) (with 24 VDC BUC
P/S)Operations & MaintenanceConfiguration andManagement

Front panel
Remote port – EIA-232 or EIA-485 (2- or 4-wire)
10/100BaseT Ethernet
SNMP with MIB II and private, modem-specific MIB
TelnetWeb browser (HTTP)
Command Line Interface (CDM-570A/L-IP)
Software/firmware upgrade via FTP
Faults and alarms
Configuration backup and restoral

Security
Password protection for web, ftp and telnet
Access list

Accessories
CRS-170A
CRS-180
CRS-280
CRS-280L
CRS-300

CDM-570AL and CDM-570AL-IP: 1:1 Modem Redundancy IF Switch
CDM-570A and CDM-570A-IP: 1:1 Modem Redundancy IF Switch
CDM-570A: 1:10 Modem Redundancy IF Switch Module
CDM-570AL: 1:10 Modem Redundancy IF Switch Module
CDM-570A & CDM-570AL: 1:10 Modem Redundancy Switch

Available Options
How Enabled
HardwareHardwareHardwareHardwareHardwareHardwareHardwareHardwareHardwareOptionPower supply, AC input
Power supply, -24 VDC input
Power supply, -48 VDC input
24 VDC, 90 W @ 50°C (100 W @ 30°C) BUC power supply, AC
input, -24 or -48 VDC input
48 VDC, 150 W @ 50°C (180 W @ 30°C) BUC power supply, AC
input or -48 VDC input
DoubleTalk Carrier-in-Carrier board
Turbo Codec board(Required for Rate 0.95. Rate 5/16, 21/44, 3/4 and 7/8 can besupported with or without the TPC board)
Packet Processor
VersaFEC-2 Codec board

FAST
FAST
FAST
FAST

FAST

FAST

FAST

FAST
FAST
FAST

FAST

Modem data rate to 1.1 Mbps for CCM operation
Modem data rate to 2.5 Mbps for CCM operation
Modem data rate to 5 Mbps for CCM operation
Modem data rate to 10.239 Mbps for CCM operation(Maximum data rate limited to 9.98 Mbps in CDM-570
Compatibility/Legacy mode. Maximum data rate limited to 9.98
Mbps when using TPC codec, 5.25 Mbps when using Viterbi,
4.666 Mbps when using Viterbi+RS, 4.4 Mbps when using
TCM+RS)
8PSK, 8-QAM modulation(8PSK requires TPC codec or Reed-Solomon, 8QAM Requires
VersaFEC codec or TPC codec)
16-QAM modulation(16-QAM requires VersaFEC codec or TPC codec or Reed
Solomon)IP ACM Symbol Rate – 375 ksps, 750 ksps, 1.5 Msps, 2 Msps or
3 Msps (Requires Packet Processor and VersaFEC or VersaFEC2)
Optimized Transmit Filter Rolloffs (5%, 10%, 15%, 20% and 25%)
– 512 kbps, 1.1 Mbps, 2.5 Mbps, 5 Mbps or 10.239 Mbps
VersaFEC Codec Data rate (CCM) – 512 kbps, 1.1 Mbps, 2.5Mbps, 5 Mbps or 10.239 Mbps
TPC Codec (CCM) for Rate 5/16, 21/44, 3/4 and 7/8(Rate 5/16, 21/44, 3/4 and 7/8 can be supported with or without
the TPC board) Not required if TPC board is present.
DoubleTalk Carrier-in-Carrier Data Rate (full) – 512 kbps, 1.1

FAST

FAST

FAST
FAST
FAST
FAST

Mbps, 2.5 Mbps, 5 Mbps, 10.239 Mbps
(Requires DoubleTalk Carrier-in-Carrier board
DoubleTalk Carrier-in-Carrier Data Rate (fractional) – 2.5 Mbps, 5
Mbps, 10.239 Mbps
(Requires DoubleTalk Carrier-in-Carrier board
DoubleTalk Carrier-in-Carrier Automatic Power Control (CnCAPC)(Requires DoubleTalk Carrier-in-Carrier)
Reed Solomon Codec
G.703 clock extension
CarrierID
Packet Processor Options – Header compression, Payload
compression, Quality of Service (QoS), VMS Integration

Regulatory
CE Mark

FCC

EN 301 489-1 (ERM)
EN55022 (Emissions)
EN55024 (Immunity)
EN 61000‐3‐2
EN 61000‐3‐3
EN60950 (Safety)
FCC Part 15, Subpart B

CDM-570A

CDM-570AL-IP

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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 inthis 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© 2017 Comtech EF Data
ds-cdm570A-L-IP.docx
1/23/2017