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CDM-Qx Satellite Modem Revision 5
Introduction MN/CDMQx.IOM
1–4
1.2.4 Data Interfaces
The Modem can be ordered with a number of interfaces. Each data interface can operate
on a Modulator or Demodulator. This allows the user to exchange interface cards for
different applications. The interfaces offered include:
• EIA/TIA-530
• (EIA-422) DCE (at rates up to 12 Mbps)
• V.35 DCE (at rates up to 12 Mbps)
• G.703 Balanced T1 & E1 (DB-15) with D&I
• G.703 Unbalanced T1 & E1 (BNC)
• EIA/TIA-612/613 HSSI (50-pin SCSI connector, to 20 Mbps)
• 1 to 4 Ports of G.703 (E1 with D&I ) Quad E1 Interface Card, (DB-9F)
1.2.5 Turbo Product Coding
The Modem offers optional 2nd generation Turbo Product Codec (TPC). TPC
simultaneously offers increased coding gain, lower decoding delay, and significant
bandwidth savings. The TPC provides:
• BPSK 5/16 and 21/44
• QPSK 21/44, 3/4, 7/8 and 17/18
• 8-PSK 3/4, 7/8, and 17/18
• 16-QAM 3/4 and 7/8
1.2.6 Remote Control
The operator may configure and monitor the modem from the front panel, or through the
remote M&C port. M&C is via RS-232, RS-485 (2/4 wire) or 10/100 BaseT Ethernet.