Model 458-AWGN2 Dual Output AWGN Generator Line Module
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1.0 Introduction
The Model 458-AWGN2 is the ideal solution for injecting Additive White Gaussian Noise (AWGN) for
ADSL, ADSL2, ADSL2+, and VDSL2 chip/modem/DSLAM testing applications. The user may add
AWGN on the CO and/or CPE side, depending on their application. The 458-AWGN2 allows for
common or independent noise levels on both sides. This line module produces a flat Power Spectral
Density (PSD) over bandwidths from 20 kHz to 30 MHz.
This module is plugged into our Model 458-3SLB (3-Slot) or 458-CC-16 (16 Slot) chassis where
settings are controlled by a convenient keypad located on the front, RS-232, Ethernet or IEEE-
488(GPIB). The modular design of Telebyte’s products allows the 458-AWGN2 to be combined with
other line modules for a wide variety of test configurations. This module can also be used to inject
AWGN onto real cable.
Features:
Bandwidth 20 kHz to 30 MHz
Inject AWGN onto real cable or local loop simulator
Solution for injecting AWGN for ADSL, ADSL2, ADSL2+, & VDSL2
chip/modem/DSLAM testing
Plugs into our Model 458-CC-16 (16-slot) or 458-3SLB (3-Slot) chassis
AWGN levels can be controlled manually via front panel of chassis, or remotely via RS-232,
Ethernet or IEEE-488 (GPIB)
458 Universal GUI software for control from a remote PC
White Noise (AWGN) Generator (-90 dBm/Hz to -145 dBm/Hz)
