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Introduction DMD15/DMD15L IBS/IDR Satellite Modem
1-2 TM051 – Rev. 5.8
1.1.3 Turbo Codec
The DMD15/DMD15L can be equipped with an optional Turbo Codec Outer Code. This option
must be installed at the factory.
1.1.4 Drop and Insert (D&I)
The DMD15/DMD15L can be equipped with a D&I Interface as an add-on enhancement. This
option can be added in the field by installing one IC into an existing socket. The D&I Functions
are completely independent and can be programmed for n x 64 blocks for either a T1 or E1 Data
Stream.
1.1.5 8PSK Modulation
The DMD15/DMD15L can be equipped with 8PSK Modulation/Demodulation capability as an add-
on option. The 8PSK Option can be added by installing 2 ICs into existing sockets.
1.1.6 OQPSK Modulation
The DMD15/DMD15L can be equipped with an OQPSK modulation/demodulation capability as an
add-on option. The option can be added in the field by installing one IC into an existing socket.
1.1.7 16QAM Modulation
The DMD15/DMD15L can be equipped with a 16QAM Modulation/Demodulation capability as an
add-on option. The 16QAM option can be added by installing 2 ICs into existing sockets.
1.1.8 Sequential Decoding
The DMD15/DMD15L can be equipped with a sequential decoding option that can be installed as
an add-on option. The DMD15/DMD15L must be prepped for this option in the factory. Once
prepped, the option can be added by installing 3 ICs into existing sockets. Sequential
Encoding/Decoding can operate with 1/2, 3/4, and 7/8 Rates, up to data rates of 2.048 Mbps.
1.1.9 Earth Station-to-Earth Station (ES-ES) Communications
The DMD15/DMD15L can be equipped with an asynchronous overhead channel capability as an
add-on option. The option can be added in the field by installing 2 ICs into existing sockets. The
overhead channel is proportional to the data rate (2,400 baud per 64 KB) up to a maximum of
19.2 Kbaud.
1.1.10 Analog AGC Voltage
The DMD15/DMD15L can be equipped at the factory to produce an analog voltage equivalent to
its AGC for use in antenna controllers.
1.1.11 Internal Engineering Service Channel (ESC)
The DMD15/DMD15L can be equipped with an internal ESC. This unit is a card on the Universal
Interface Module (UIM). The DMD15/DMD15L can be updated with an ESC capable UIM in the
field with no other changes required.
1.1.12 OM73 Compatible