Module Description; Table 1: Minimum Gx2-Hsg* Equipment-Shelf Configuration - Motorola GX2 EA1000C Series User Manual

Overview

Table 1: Minimum GX2-HSG* Equipment-Shelf Configuration

Co mp on en t Mo de l
GX2-HSG*
Equipment-shelf
GX2-PSAC10* or
Power supply
GX2-PSDC10*
module
GX2-CM100B
Control module
GX2-EA1000C*/*
Laser module

Module Description

The GX2-EA1000C*/* provides an optical output used to transport video and data signals
on a broadband HFC network. The GX2-EA-1000C*/* family of transmitters operate in
the C-band wavelength range. These broadcast/narrowcast transmitter modules support
DWDM multi-wavelength downstream transport, providing multiple optical signals for
segmented or fiber deep applications over a single fiber. Each wavelength carries unique
broadcast and narrowcast content and feeds a separate optical receiver. This solution is
intended to accommodate Analog, Digital QAM or a mix of both full loading.
The GX2-EA1000C*/* occupies one application module slot in the GX2-HSG universal
housing. The module is designed for use in broadcast/narrowcast transport applications,
where it accepts Analog and/or QAM-based digital signals and modulates these signals
onto an optical carrier for transmission through a fiber medium. The GX2-EA1000C*/* is
intended for use in a GX2-HSG housing and may be placed either at a headend or hub
location.
The optical output is produced in the module by a DWDM ITU externally modulated
laser. The GX2-EA1000C*/* has a single optical output that can be optically amplified if
needed by application requirements. The trailing digits that replace the asterisks (*/*) in
the model number differentiate the laser module output-power levels and SBS threshold.
Table 7 in Appendix A, "Specifications" identifies the various models of the GX2-
EA1000C*/* and their respective optical outputs.
Each GX2-EA1000C*/* features a state-of-the-art pre-distortion circuit to provide
excellent composite second order (CSO) and composite triple beat (CTB) distortion
performance. During the manufacturing process, the performance of each laser is
characterized and its optimal operating point is stored in non-volatile memory (NVM)
within the unit.
GX2 EA1000C*/* Multi-Wavelength DWDM 1550 nm Laser Transmitter • User Guide
589569-001-a
Fu nc ti o n
Rack-mountable shelf that houses up to sixteen modules, AC or
DC power supplies, and a control module
The GX2-PSAC10*provides shelf power in an AC powered
system;
the GX2-PSDC10* provides shelf power in a DC system
Provides status monitoring and control functions
Laser transmitter, available in different output powers to fit any
system requirement
B
7