Plesiochronous Buffer; Monitor And Control; Dmd50 Drop And Insert (Optional); Terrestrial Interfaces - Comtech EF Data DMD50 Installation And Operation Manual

DMD50 Universal Satellite Modem
Decoder Options
Descrambler
Acquisition Range
Reacquisition Range
Sweep Delay Value
7.4

Plesiochronous Buffer

Size
Centering
Centering Modes
Clock
7.5

Monitor and Control

Ethernet 10 Base-T/Web Browser, Remote RS-485/Terminal RS-232/DMD15 Protocol
Compatible
7.6

DMD50 Drop and Insert (Optional)

Terrestrial Data
Line Coding
Framing
Time Slot Selection
Time Slots
Data Rates
Efficient D&I
Time Slots
7.7

Terrestrial Interfaces

A variety of standard interfaces are available for the DMD50 modem in stand-alone applications.
7.8

IDR/ESC T2/E2 Interface (Optional)

G.703 T1 (100)
G.703 E1
G.703 T2 (100)
G.703 E2
7.9

IDR/ESC T3/E3/STS1 Interface (Optional)

G.703 T1 (DSX1)
G.703 E1
G.703 T2 (DSX2)
G.703 E2
G.703 E3
MN-DMD50– Revision 3
BPSK 21/44 (TPC)
QPSK/OQPSK 1/2, 2/3, 3/4, 7/8 <20Mbps (TPC)
8QAM/8PSK 2/3, 3/4, 7/8 <20Mbps (TPC)
16QAM 3/4, 7/8 <20Mbps (TPC)
Reed-Solomon INTELSAT (DVB Optional)
Custom (N, K) Reed-Solomon
OM-73, CCITT V.35 or IBS
Programmable ±1 kHz to ± 255 kHz
Programmable ±1 Hz to 25000 Hz
0 to 6000 seconds in 100 msec Steps
0 msec to 64 msec
Automatic on Underflow/Overflow
IBS: Integral Number of Frames
IDR: Integral Number of Multi-Frames
Transmit, External, Rx Recovered or SCT (Internal)
1.544 Mbps or 2.048 Mbps, G.732/733
AMI or B8ZS for T1 and HDB3 for E1
D4, ESF and PCM-30 (PCM-30C) or
PCM-31 (PCM- 31C) for E1
n x 64 Contiguous or Arbitrary Blocks for Drop or Insert.
TS1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31
64, 128, 192, 256, 320, 384, 512, 640,
768, 960, 1024, 1280, 1536, 1920 Kbps
Closed Network, Satellite Overhead 0.4%
1-31 Any combination
1.544 Mbps, 100 Ohm Balanced, AMI and B8ZS
2.048 Mbps, 75 Ohm Unbalanced and 120 Ohm Balanced, HDB3
6.312 Mbps, 75 Ohm Unbalanced and 110 Ohm Balanced, B8ZS
and B6ZS
8.448 Mbps, 75 Ohm BNC, Unbalanced, HDB3
1.544 Mbps, 100-Ohm Balanced, AMI and B8ZS
2.048 Mbps, 75-Ohm BNC, Unbalanced and 120-Ohm
Balanced, HDB3
6.312 Mbps, 75-Ohm BNC, Unbalanced and 110-Ohm
Balanced, B8ZS and B6ZS
8.448 Mbps, 75-Ohm BNC, Unbalanced, HDB3
34.368 Mbps, 75-Ohm BNC, Unbalanced
Technical Specifications
7–3