Comtech EF Data SDM-2020 - Manual (Page 95)

6-1
Chapter 6. DATA INTERFACES
6.1 D
ESCRIPTION
The data interface is a plug-in module that provides a specific terrestrial connection to the
modulator unit. Where practical, both the TX (modulator) and RX (demodulator) paths
are incorporated into the data interface.
Different interfaces are described in the following chapters. As additional interfaces are
developed, a new chapter will be added to include the new interfaces. Contact Comtech
EF Data Customer Support for the latest offering.
6.1.1 I
NTERFACE
/M&C S
OFTWARE
R
EQUIREMENTS
As additional data interfaces are introduced, the software is revised to support the
operation of each interface. Table 6-1 summarizes the minimum software version
necessary to operate each interface type
.
Table 6-1. Minimum Software Revisions
Data Interface Minimum Software Version
RS-422 1.1.1
LVDS 1.1.1
1 ASI & RS-422 4.1.1
ECL/HSSI 5.1.1
G.703 5.3.1
G.703 (Adds T1and E1) 8.1.1
SMPTE 310M 5.3.2
ASI/LVDS 8.1.4
CAUTION
To avoid damaging the modulator, always disconnect the power before removing
or installing a data interface.
1 ASI & RS-422 interface is being phase out for the ASI/LVDS interface. Contact Comtech EF Data Customer
Support department if this action causes a configuration problem.