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CDM-6253
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CDM-625

Advanced Satellite Modem_高階衛星數據機

這是Comtech的第一款高階衛星數據機,它將諸如VersaFECFE和低密度奇偶校驗(LDPC)碼之類的高級前向糾錯(FEC)與革命性的DoubleTalk Carrier-in-Carrier頻寬堆疊,從而在所有情況下均實現了最大程度的節省。 先進技術的這種結合實現了多維優化,從而使衛星通信用戶能夠:
•最大限度地減少運營費用(OPEX)
•在不使用額外轉發器資源的情況下最大化吞吐量
•在不使用額外轉發器資源的情況下最大化可用性(邊際)
•通過允許使用較小的BUC / HPA和/或天線來最小化資本支出(CAPEX)
•或者,組合以滿足特定的業務需求



  • DoubleTalk Carrier-in-Carrier bandwidth compression
  • Carrier-in-Carrier Automatic Power Control
  • Adaptive Coding and Modulation (ACM)
  • Packet Processor with header compression, payload compression, advanced Quality of Service (QoS) and Managed Switch Mode
  • 4-port managed Ethernet switch with VLAN and QoS
  • Jumbo frame support
  • Dual Band Capability: 70/140 MHz and L-Band in same unit, extended L-Band receive
  • Data Rate: 18 kbps to 25 Mbps
  • Symbol Rate: 18 ksps to 12.5 Msps • Modulation: BPSK, QPSK/OQPSK, 8PSK/8-QAM, 16-QAM
  • FEC: Viterbi, Sequential, Concatenated Reed Solomon, TCM, Turbo Product Code (TPC) (IESS-315 Compliant), LDPC Code and VersaFEC (low-latency 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
  • 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: Advanced FSK for LPOD M&C
  • L-Band RX: 10 MHz reference and LNB power supply
  • Open network modes
  • 1:1 and 1:10 redundancy switches availabl
Comtech EF Data 1285684
附加檔案:
ds-cdm625.pdf