Operational Features; Operating Modes; Secure Management Interfaces; Data Interfaces - Comtech EF Data SLM-5650C CyberLynx Installation And Operation Manual

1.3.2

Operational Features

1.3.2.1

Operating Modes

Both modems support Uncoded, Viterbi, Viterbi+Reed Solomon, Sequential, TPC, and LDPC
modes of operation. (STANAG 4486 (EBEM) in fall 2019)
1.3.2.2

Secure Management Interfaces

Chapter 6. MODEM CONFIGURATION
The modems support secure management interfaces, as part of its Management Security option.
Detailed information about these configurations and modes, and their functional association with
the Modem, is provided in the following chapters in this manual.
1.3.2.3

Data Interfaces

The modems support only an Ethernet data interface in GigE Bridge mode.
1.3.2.3.1

10/100/1000BASE-T (Gigabit Ethernet)

Chapter 8. 10/100/1000BASE-T (GbE) INTERFACE
The 10/100/1000BASE-T (Gigabit Ethernet, or GbE) interface performs a simple bridge function
and passes IP packets, unaltered, in each direction between the Local Area Network (LAN)
(10/100/1000BASE-T interface) and Wide Area Network (WAN) (modulator / demodulator).
IP packet traffic is framed via High-level Data Link Control (HDLC) encapsulation by the modem
logic, and the modem is both the origination and termination point for HDLC encapsulation. HDLC
CRC-16 verification is performed on all received (from WAN) HDLC frames.
1.3.2.4

Independent Tx and Rx Function

The Tx (modulator) and Rx (demodulator) sides of the modem are functionally independent and
separately controllable. The baseband Tx and Rx sides of a communication channel passing
through the modem are independently configurable, including the ability to select different
parameters (to include data rate, coding, modulation, and spreading) in support of asymmetrical
operation.
Introduction
SLM-5650C / SLM-5650C-ODU Satellite Modem
1–7
Revision 1
MN-SLM-5650C