Comtech Radyne SLM-5650A Universal High Speed Milsatcom Satellite Modem
MIL-STD-188-165A, modem types I, II, IV, V and VI for applications on DSCS, WGS and commercial satellites.
SLM-5650A Universal High Speed Milsatcom Satellite Modem
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The Comtech EF Data SLM-5650A Satellite Modem is compliant with the strict requirements defined in MIL-STD-188-165A, modem types I, II, IV, V and VI for applications on DSCS, WGS and commercial satellites. Data rates from 32 kbps to 155 Mbps and symbol rates from 32 ksps to 64 Msps are supported.
The modem provides standard MIL-STD-188-114 (EIA-530 / RS-422), and EIA-613 (HSSI) serial interfaces, and can be optionally configured to support G.703 and Low Voltage Differential Signaling (LVDS) serial interfaces. It can also optionally be equipped with a 4-port 10/100/1000Base-T Ethernet Network Processor module that supports switching, routing and advanced Quality of Service protocols.
Seamless Vipersat Bandwidth Management System Integration
The SLM-5650A can be integrated with the Vipersat Management System (VMS) to provide fully automated network and capacity management. An AES-256 TRANSEC module, compliant with the FIPS-140-2 NIST standard is also available as an option. All traffic (including overhead and all VMS control traffic) is encrypted when using the TRANSEC module.
Advanced forward error correction (FEC) capabilities are a Comtech EF Data standard feature. Viterbi, Trellis, Concatenated Reed-Solomon, Sequential, Turbo Product Codes, and Low Density Parity Check codes (LDPC) are all supported.
Advanced FEC and modulation capabilities are integrated with the revolutionary DoubleTalk_ Carrier-in-Carrier bandwidth compression allowing for maximum state-of-the-art performance under all conditions.
This combination of advanced technologies enables multi-dimensional optimization, allowing satellite communications users to:
- Minimize required satellite bandwidth
- Maximize throughput without using additional transponder resources
- Maximize availability (margin) without using additional transponder resources
- Enable use of a smaller BUC/HPA and/or antenna
- Or, a combination of the above to meet specific mission needs
Spread Spectrum
Direct sequence Spread Spectrum is available as an option in conjunction with LDPC-based FEC and BPSK modulation. Spreading factors up to 128 are supported. Spread spectrum results in operation with ultra-low power spectral densities. This enables use of small antenna apertures when adjacent satellite interference (ASI) is an important consideration. It can also be utilized to provide low probability of detection / intercept (LPD/LPI) operation and/or strong resistance to jamming.
The IF interface supports 52 to 88, 104 to 176, and 950 to 2000 MHz frequency ranges.
Universal Compatibility
The SLM-5650A is interoperable with the OM-73, SLM-3650, MD-1352(P)/U (BEM-7650), SLM-7650, SLM-8650, CDM-570, CDM-600/600L, CDM-625, CDD-562, CDD-564, DMD20, DMD2050, and DMD2050E satellite modems. Special ordering option enables compatibility with the SDM-9000 modem using legacy Triple Viterbi modes.
Data Interfaces
The modem supports EIA-530 (RS-422), EIA-612/613 (HSSI) as standard features. Optional interface modules are available to support
G.703, LVDS serial, or 4-port Gigabit Ethernet interfaces.
TRANSEC Module
An optional transmission security (TRANSEC) module provides bulk AES-256 encryption/decryption certified to FIPS-140-2 Level 2. The TRANSEC module encrypts all traffic sent over the air, including data traffic, overhead channel and Vipersat Management System messages (if present).
Advanced Iterative Forward Error Correction
Turbo coding provides superior error correction performance over Viterbi, Trellis and Reed-Solomon FEC. The SLM-5650A TPC is compatible with Intelsat IESS-315 and Comtech EF Data’s CDM-570, CDM-600, CDM-625, SLM-3650, SLM-7650, DMD20, DMD2050, and DMD2050E Satellite Modems and the CDD-562/564 IP Demodulators. The high-performance LDPC is compatible with the CDM-600, CDM-625, DMD2050, and DMD2050E. The ultra low latency LDPC is compatible with the CDM-625.
ASYNC Overhead Channel / AUPC
An asynchronous overhead channel supporting 2- and 4-wire RS-485, as well as RS-232 can be optionally configured. This overhead channel is typically used to support control and monitoring of equipment external to the modem in a remote network. The ASYNC overhead channel can be provisioned in conjunction with any of the supported traffic interfaces (RS-422, HSSI, G.703, LVDS or Ethernet). Automatic Uplink Power Control (AUPC) is available to maintain a desired Eb/No at the demodulator despite link fades due to excessive rain or other power level variations.
Network Processor
The Network Processor (NP) module provides a wide variety of advanced Internet Protocol (IP) features including routing, switching, Quality of Service, and Vipersat dynamic bandwidth control.
Networking
With the NP module installed, the modem can be configured as an Ethernet switch or as a high-speed router. Networking options include configuration of a bridged point–to-multipoint network, which enables bridged network connectivity (desired in many satellite networks carrying encrypted traffic) in a hub-spoke network architecture.
Multicast
Multicast traffic forwarding is supported via static multicast addressing, dynamic multicast address learning through IGMP router and IGMP Proxy, and via the bridged point-to-multipoint mode of operation.
Flow Control
Flow Control is supported via Ethernet pause frames (IEEE 801.3)
Proxy ARP
Proxy ARP is supported to enable transparent subnets.
Quality of Service (QoS)
The NP module supports multi-level QoS to reduce jitter and latency for real time traffic, provide priority treatment to mission critical applications and allow non-critical traffic to use the remaining bandwidth. Supported functionality includes differentiated services code point (DSCP) in accordance with RFCs 2474 and 2475, Expedited Forwarding in accordance with RFC 3246, and Per Hop Behavior in accordance with RFC 3247.
Vipersat Bandwidth Management
The Vipersat Management System (VMS) is the engine that provides dynamic Single Carrier per Channel (dSCPC) bandwidth management of the space segment. When a remote in the network has an application to transport over the satellite link, dSCPC technology provides the mechanism to automatically establish the SCPC carrier for that transmission. dSCPC resizes the carrier based on the increase or decrease in applications being sent over the link, and it returns the remote to its home state once the application is completed. dSCPC yields true bandwidth-on-demand, giving the user the low-latency, low-jitter dedicated SCPC connection when it is needed for real-time applications, such as Voice over IP (VoIP), video conference, broadcasts and large applications (file or image transfers).
VMS automates bandwidth utilization while optimizing space segment efficiency. It allows intelligent management of satellite networks through port and system configuration and alarm management of the protocol, modem, RF equipment and IP broadband networking. The graphical user interface of VMS enables centralized network configuration and management. It provides auto-detection of satellite modems, configuration and monitoring of the modems, and real-time views of network health and transmission quality. These allow operators to easily configure and monitor dynamically controlled networks. The VMS can be configured to dynamically allocate satellite network capacity in a variety of ways. Supported modes for capacity allocation include:
1. Entry channel mode, which allows a modem to automatically enter/exit a network, sets a fixed capacity for the terminal when in the network.
2. Load: Capacity allocation based on load demand of terminals on the network.
3. Type of Service (ToS): Type and priority based allocation using DiffServ Code Point (DSCP) fields.
Both shared forward link and multiple point-to-point hub-spoke architectures can be configured and dynamically controlled by the VMS.
Antenna Handover
Supports lossless, low-latency antenna handover in conjunction with the CRS-311-AH antenna handover switch controller.
Operating Frequency Range
52 to 88 MHz, 104 to 176 MHz, 950 to 2000 MHz in 100 Hz steps
Modulation Types: BPSK, QPSK, OQPSK, 8-PSK, 8-QAM, 16-QAM
Spreading Factors: 2,4,8,16,32, 64 or 128; BPSK LDPC only
Digital Data Rate EIA-530: 64 kbps to 20 Mbps, 1 bps steps
EIA-613: 64 kbps to 51.84 Mbps, 1 bps steps
Gigabit Ethernet: 32 kbps to 155.52 Mbps
Symbol Rate: 32 ksps to 64 Msps
External Reference Input
TNC connector, 1, 5, or 10 MHz, selectable
INT REF Stability 1 x 10-7
Scrambling V.35, OM-73 and synchronous
IDR/IBS FramingCompatibility
Support for IDR and IBS framing. Allows basic
IDR/IBS open network compatible operation
Built-in Test (BIT) Fault and status reporting, BER performance
Modulation
Output Power +10 to –40 dBm, adjustable in 0.1 dB steps
Output Return Loss: 14 dB (70/140 MHz), 9 dB (L-Band)
Output Impedance: 50 ohms
Spurious From Carrier + symbol rate to 500 MHz -51 dBc
Harmonics From carrier (CW) to 4000 MHz -60 dBc
TX Clock Source INT, TX terrestrial, and data source sync, RX satellite
Output Connectors TNC for 52 to 88 MHz, 104 to 176 MHz
Type “N” for 950 to 2000 MHz
Demodulation
Input Power: Desired Carrier +10 to –55 dBm carrier (SR > 3.2 Msps) -55 - 10log(3.2/SR), (SR < 3.2 Msps)
Maximum Composite: +20 dBm or +40 dBc
Input Impedance: 50 ohms
Input Connectors: TNC for 52 to 88 MHz, 104 to 176 MHz, Type “N” for 950 to 2000 MHz
Carrier Acquisition Range: ± 30 kHz, selectable
Input Return Loss: 14 dB (70/140 MHz), 9 dB (L-Band)
Buffer Clock: INT, TX terrestrial, RX satellite
Doppler Buffer: 32 to 16,777,216 bits, selectable
Coding Options
Uncoded Standard 1/1
Viterbi Standard K=7,1/2, 3/4, and 7/8 rates
Viterbi & Reed-Solomon Standard Closed network, per IESS-308
and IESS-309
Trellis Standard Per IESS-310
Trellis and
Reed-Solomon
Standard Per IESS-310
Triple Viterbi Optional 1/2 and 3/4
Legacy SDM-9000 compatibility
Sequential Optional 1/2, 3/4, and 7/8 rates
Turbo Product Code
(TPC)
Optional 5/16, 21/44, 3/4, and 7/8
TPC per IESS-315
Low Density Parity
Check (LDPC)
Optional 1/3, 1/2, 2/3, 3/4, and 7/8
HP, LL, and ULL modes
Options
How Enabled Option
FAST Data rates to 5, 10, 20, 52 or 155 Mbps
FAST 8-PSK/8-QAM and 16-QAM
FAST TPC to 5, 10, 20, 52 or 155 Mbps
FAST/Hardware TPC and LDPC to 5, 10, 20, 52 Mbps
FAST Vipersat Management System
FAST Diff-Serv QoS
FAST Secure Network Management (SSL/SSH)
FAST ASYNC RS-485/232 overhead channel /AUPC
FAST Sequential FEC
FAST DoubleTalk Carrier-in-Carrier
FAST Asymmetric TX/RX data rate levels
FAST Bridged point- to-multipoint
FAST SDM-9000 compatibility ( including Triple Viterbi)
FAST Spread Spectrum
Hardware G.703 data interface
Hardware LVDS data interface
Hardware TRANSEC module
Hardware Gigabit Ethernet Network Processor
Hardware 24 VDC power supply
Environmental And Physical
Prime Power 90 to 264 VAC, 47 to 63 Hz
130 W (max), 90 W typical
24 VDC optional
Mounting 1RU
Dimensions
(height x width x depth)
1.71” x 19” x 19”
(4.3 x 48 x 48 cm)
Weight _ 12 lbs (5.5 kg)
Temperature, Operating 0 to 50_C (32 to 122_F)
Temperature, Storage
(Non-operational)
-40 to +70_C (-40 to 158_F)
Humidity 0 to 95%, non-condensing
Typical Users
Government
Military
Secure Commercial Networks
Common Applications
Communications at the-Pause
Communications on the-Move
Rugged Environments
Secure Networks