B.1 introduction, B.2 message header configuration – Comtech EF Data CMR-5950 Manual User Manual
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Appendix B. BISS E CONTROL
VIA SimulCrypt INTERFACE
B.1 Introduction
All data transferred between the IS for BISS with the Common Scrambling Algorithm
(CSA) scrambler and the host is based on the protocol defined in the ETSI TS 103 197
V1.2.1 (2002-01) specification.
The host connects to the BISS scrambler via Ethernet and uses either a TCP or UDP
connection. The connection type is set on the BISS scrambler via the user interface.
The BISS scrambler listens on a user-defined port. There is no default port – the user must set
this via the BISS scrambler’s user interface. The port shall have a value of 1024-65535.
B.2
Message Header Configuration
All messages will begin with the following header:
generic_message
{
protocol_version 1 byte
message_type 2 bytes
message_length 2 bytes
for (i=0; i < n; i++)
{
parameter_type 2 bytes
parameter_length 2 bytes
parameter_value
}
}
B–1