Comtech EF Data OM20 - Manual (Page 146)

OM20 Universal Outdoor Modem Technical Specifications
MN-OM20– Revision 5 8–2
8.3 Demodulator
Demodulation BPSK, QPSK, and OQPSK (8PSK, 16QAM Optional)
L-Band Tuning Range 950 to 2050 MHz in 1 Hz Steps
Impedance 50-Ohm
Connector N-Type female
Return Loss 10 dB Minimum
Spectrum INTELSAT IESS 308/309/310 Compliant
Input Level 10 x log (Symbol Rate) - 100, ±12 dB
Adjacent Channel Rejection Ratio >+10 dBc
Total Input Power -10 dBm or +40 dBc (the Lesser) @ 256 Kbps
FEC Viterbi, K = 7 at 1/2, 3/4 and 7/8 Rate,
Rate Sequential 1/2, 3/4, 7/8 (Optional)
Trellis 2/3
Radyne Turbo (Optional)
BPSK 21/44
8PSK/16QAM 3/4, 7/8
QPSK 1/2, 3/4, 7/8
(Turbo Supported at all Modulation Types)
Decoder Options Reed-Solomon INTELSAT (DVB Optional)
Descrambler CCITT V.35 or IBS (Others Optional)
Acquisition Range Programmable ±1 kHz to ± 255 kHz
Sweep Delay Value 100 msec to 6000 sec. in 100 msec Steps
8.4 Plesiochronous Buffer
Size 0 msec to 64 msec
Centering Automatic on Underflow/Overflow
Centering Modes IBS: Integral Number of Frames
IDR: Integral Number of Multi Frames
Clock Transmit, Rx Recovered or SCT (Internal)
8.5 Monitor and Control
Remote RS-485/Terminal RS-232/Ethernet 10 Base-T/Web Browser
8.6 OM20 Drop and Insert (Optional)
Terrestrial Data 1.544 Mbps or 2.048 Mbps, G.732/733
Line Coding AMI or B8ZS for T1 and HDB3 for E1
Framing D4, ESF and PCM-30 (PCM-30C) or
PCM-31 (PCM- 31C) for E1
Time Slot Selection n x 64 Contiguous or Arbitrary Blocks for Drop or
Insert.
Time Slots TS1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31
Data Rates 64, 128, 192, 256, 320, 384, 512, 640,
768, 960, 1024, 1280, 1536, 1920 Kbps