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SDM-2020 Satellite Demodulator
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
TM1449
TIA/EIA-612
TIA/EIA-613
Cisco HSSI spec
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.
Rev.3
Digital broadcasting systems for television, sound and data services
Interfaces for CATV / SMATV Headends and Similar Professional
Equipment, 10th Working Draft
Electrical Characteristics for an Interface at Data Signaling Rates up to
52 Mbit/s (HSSI)
High Speed Serial Interface for Data Terminal Equipment and Data
Circuit-Terminating Equipment (HSSI)
HSSI High Speed Serial Interface Design Specification, rev. 3.0
Data Interfaces
A–27
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