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G52808 dls test works nsa 400 adsl noise generator
G52808 DLS Test Works NSA 400 ADSL Noise Generator
The NSA 400 consists of seven discrete generation sections. The features associated with one generator operate independently of the others. However, the options within a section can only be activated one at a time. The seven sections are:
2 x low frequency (500 kHz) NEXT PSD generator
1 x high frequency (2.0 MHz) NEXT PSD generator
The output circuit is balanced with a minimum Thevenin impedance of 4000 ohms over the range 50 Hz to 2.0 MHz.
The NSA 400 simulates a variety of impairments which can be used to test according to the following National and International standards:
ANSI T1.601 ISDN Basic Access Interface
ANSI Technical Report on HDSL
ANSI Proposed Working Draft for HDSL2 Standard (T1E1.4/ 98 268)
ETSI TS 102 080 ISDN Standard
The user can set the impairments using the IEEE or the RS-232 interface. The
command language in both cases is based on the Standard Commands for
Programmable Interfaces (SCPI) standard.
