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CDM570/570L Satellite Modem MN/CDM570L.AA4
Incorporate NMCS Protocol
Page 5 of 54 MN/CDM570L.AA4
NMCS Protocol
3.0 Introduction
The following sections outline the basic command set supported in this version of the CIM
NMCS protocol.
3.1 Telnet interface
Telnet interface into the NMCS system must be on port 7023, which has been reserved for this
protocol by the IANA.
The login process requires a name and password, which are defined by the systems administrator
of the controlling equipment. This name and password is usually associated to the name and
password of an administrator account.
3.2 Basic Protocol
All bytes within a command are printable ASCII characters, less than ASCII code 127. In this
context, the Carriage Return (cr) and Line Feed (lf) characters are considered printable.
All messages from controller to target require a response as indicated. This will be either to return
data that has been requested by the controller, or to acknowledge reception of an instruction to
change the configuration of the target.