CDMER-625A Advanced Satellite Modem

Comtech EF Data

CDMER-625A Advanced Satellite Modem

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  • Environmentally Resistant (ER)
  • DoubleTalk Carrier-in-Carrier bandwidth compression
  • Carrier-in-Carrier Automatic Power Control

SKU: CMT112 Tags: , , , ,
  • Description
  • Technical Specifications
  • Support Documents

Overview

The CDMER-625A is the Environmentally Resistant (ER) version of the CDM-625A. It offers added protection in more aggressive operating environments that have a higher concentration of dust, sand and salt. The ER version uses an application of Urethane Conformal Coating (CC) and critical interface protective covers for enhanced protection against dust, sand and salt. Special protective Conformal Coating and protective covers have been designed to ensure that the CDMER-625A meets MIL-STD-810G requirements including Method 510 Procedure I (Blowing Dust), Method 510 Procedure II (Blowing Sand) and Method 509 (Salt Fog). Both the CC and protective connector covers are non-nutrient fungal growth materials. The ER version also provides an extended operating temperature range of 0 to 60º C. The ER version is not designed to be used in an un-controlled environment or outdoor application. The ER version carries the same two year standard warranty as other Comtech EF Data products.

Details

  • Environmentally Resistant (ER)
  • DoubleTalk Carrier-in-Carrier bandwidth compression
  • Carrier-in-Carrier Automatic Power Control
  • VersaFEC-2 High Performance LDPC with Adaptive Coding and Modulation (ACM), Short Block and Long Block
  • VersaFEC FEC with Adaptive Coding and Modulation (ACM)
  • 5%, 10%, 15%, 20%, 25% and 35% Filter Rolloff
  • Packet Processor with header compression, payload compression, advanced Quality of Service (QoS) and Managed Switch Mode with VLAN support
  • Integrated 4-port managed Ethernet switch with VLAN and QoS
  • Jumbo frame support
  • Dual Band Capability: 70/140 MHz and extended L-Band (950 – 2250 MHz) in same unit
  • Data Rate: 18 kbps to 25 Mbps
  • Symbol Rate: 18 ksps to 12.5 Msps
  • Modulation: BPSK, QPSK/OQPSK, 8PSK/8-QAM/8-ARY, 16-QAM/16-ARY, 32-ARY
  • FEC: Viterbi, Sequential, Concatenated Reed Solomon, TCM, Turbo Product Code (TPC) (IESS-315 Compliant), LDPC Code, VersaFEC (low-latency LDPC) and VersaFEC-2 (high performance LDPC)
  • Widest Range of data interfaces: EIA-422/530, V.35, G.703 T1, G.703 E1, G.703 T2, G.703 E2, Quad G.703 E1, ASI, LVDS, HSSI, 4-port 10/100Base-T Ethernet
  • IEEE 1588v2 Precision Time Protocol
  • Sub Mux to multiplex IP/Ethernet traffic with serial or G.703 traffic
  • Drop & insert for T1/E1
  • Enhanced D&I++ for single T1/E1 & quad E1
  • Management: 10/100Base-T Ethernet with SNMP, Distant End SNMP Proxy, HTTP, Telnet and EIA-232/EIA-485
  • RADIUS Client
  • Carrier ID using MetaCarrier® Technology
  • Embedded Distant-end Monitor and Control (EDMAC)
  • Automatic Uplink Power Control (AUPC)
  • Engineering Service Channel (ESC/ESC++)
  • Standard high-stability internal reference (± 6 x 10-8)
  • 5-tap Adaptive Equalizer
  • L-Band TX: 10 MHz reference for BUC, FSK communications and optional BUC power supply
  • L-Band RX: 10 MHz reference and LNB power supply
  • L-Band: Advanced FSK for LPOD M&C
  • 1:1 and 1:10 redundancy switches available
  • Backwards compatible with CDM-625

Specifications
Data Rate 18 kbps to 25 Mbps, in 1 bps steps
(modulation, FEC & data interface dependant)
Symbol Rate 18 ksps to 12.5 Msps
Operating Frequency 50 – 180 MHz (standard) and
950 – 2250 MHz (option)
100 Hz resolution, independent TX and RX operation
Major Operating Modes (See User Manual For Details) Open network, per IESS-308 / 309 / 310 / 314 transparent, closed network per IESS-315
LDPC / TPC Codec (option)
VersaFEC Codec (option) with ACM or Constant Coding & Modulation (CCM)
EDMAC Framed with/without AUPC
RS Outer Codec
High rate ESC / Enhanced ESC (ESC++)
Drop & insert (D&I) /Enhanced D&I++ (option)
Quad E1 drop & insert (QDI) (option)
DoubleTalk Carrier-in-Carrier (option)
FEC & Modulation
None Uncoded BPSK/QPSK/OQPSK
Viterbi: k=7, per IESS- 308/309 Rate 1/2 BPSK/QPSK/OQPSK
Rate 3/4 QPSK/OQPSK
Rate 7/8 QPSK/OQPSK
Viterbi with Reed Solomon Rate 3/4 16-QAM
Rate 7/8 16-QAM
Sequential See CDM-625A user manual for details
Reed Solomon Open network and closed network modes
TCM (Per IESS-310) 8PSK/TCM Rate 2/3
Integrated LDPC and TPC (2nd Gen) Codec (Optional Plug-in Module) LDPC Code Rates
Rate 1/2 BPSK/QPSK/OQPSK
Rate 2/3 QPSK/OQPSK/8PSK/8-QAM
Rate 3/4 QPSK/OQPSK/8PSK/8-QAM/16-QAM
TPC Code Rates
Rate 5/16 BPSK
Rate 21/44 BPSK/QPSK/OQPSK
Rate 3/4 QPSK/OQPSK/8PSK/8-QAM/16-QAM
Rate 7/8 QPSK/OQPSK/8PSK/8-QAM/16-QAM
Rate 0.95 QPSK/OQPSK/8PSK/8-QAM
VersaFEC Codec (Option) BPSK Rate 0.488
QPSK Rate 0.533, 0.631, 0.706, 0.803
8-QAM Rate 0.576 (ECCM), 0.642, 0.711, 0.780
16-QAM Rate 0.644 (ECCM), 0.731, 0.780, 0.829, 0.853
BPSK 0.493 (ULL)
QPSK 0.493, 0.654, 0.734 (ULL)
VersaFEC-2 Codec (Option) Long 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, 0.855, 0.879
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
Scrambling IDR Mode, no RS, - per ITU V.35 (Intelsat variant)
IBS mode, no RS - per IESS-309, externally frame
synchronized
Transparent Closed Network mode, no RS or Turbo
coding - per ITU V.35 (Intelsat variant)
EDMAC mode, no RS coding - externally frame
synchronized - proprietary
Turbo Product Code/LDPC/VersaFEC modes - externally
frame synchronized - proprietary
All RS modes - externally frame synchronized per IESS
308/309/310
Management 10/100Base-T Ethernet with SNMP, HTTP and Telnet support, EIA-232, EIA-485 (2- or 4-wire)
Form C Relays Hardware fault, RX and TX traffic alarms, open network backward alarms
External Reference (Input OR Output) BNC connector
Input: 1, 2, 5, or 10 MHz, -6 dBm to +10 dBm, 50 Ω/75 Ω (nominal)
Output: 10 MHz, 2.7 V peak-to-peak ± 0.4 V, low impedance output
(View our PDF Datasheet for more information)

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