SDM-2020 Satellite Demodulator
Data Interfaces
Rev.3
A–27
A.5 ECL/HSSI
Interface
This ECL/HSSI interface plug-in module provides the physical and electrical interface
between an SDM-2020 modulator or demodulator and a serial ECL signal source
operating with TIA/EIA-612 electrical characteristics.
A.5.1 Applicable
Documents
Applicable specifications, as referenced herein, include:
ETS 300 421
Digital broadcasting systems for television, sound and data services
TM1449
Interfaces for CATV / SMATV Headends and Similar Professional
Equipment, 10th Working Draft
TIA/EIA-612
Electrical Characteristics for an Interface at Data Signaling Rates up to
52 Mbit/s (HSSI)
TIA/EIA-613
High Speed Serial Interface for Data Terminal Equipment and Data
Circuit-Terminating Equipment (HSSI)
Cisco HSSI spec
HSSI High Speed Serial Interface Design Specification, rev. 3.0
A.5.2 Description
The ECL/HSSI data interface is an optional rear panel field-installed plug-in, and
provides the modulator and demodulator with a emitter coupled logic (ECL) serial data
electrical interface.
Summary of Contents for SDM-2020
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