13-3.5 Remote Operation
All R2600 Series Communications System Ana-
lyzers are equipped with a standard RS-232 inter-
face. Optionally, the R2670 is equipped with an
IEEE 488 interface. Either of these interfaces
may be used to remotely control the analyzer
using a set of commands, queries, and responses
that are defined in the General Dynamics R2600
Series Communications System Analyzer
Programming Reference Manual (68-80309E55).
13-3.6 HELP
The analy
zer provides on-screen operating
instructions via the dedicated HELP key. Help
screens are organized such that each display area
has an associated help screen pertaining to that
area of the screen. System help is available via a
softkey within each help screen. Use the return
softkey to return to the function in progress.
13-4 ENCRYPTION CAPABILITIES
Hardware encryption is always enabled when the
R2670 is in SECURENET mode. SECURENET
equipment converts normal speech patterns to
their digital equivalent and then uses an
encryption algorithm to encrypt data for
transmission. A receiving radio, using the same
algorithm and a matching key, automatically
reverses the process so you can hear a normal
audio message.
A set of either U.S. or European encryption
algorithms are available with the SECURENET
Option. Algorithms include Data-Encryption
System (DES) - a U.S. Federal Government
encryption standard, Digital Voice Protection
(DVP) - a Motorola Proprietary encryption
algorithm, and DVI - a Motorola Proprietary
encryption algorithm for international use only.
Within a set, each algorithm is individually
selectable:
Domestic: DES, DES-XL, DVP, DVP-XL
International: DVI-XL, DVP, DVP-XL
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