Interface Module User Guide
SAM2000G-12
12-Port SHDSL Access Multiplexer
Also: SAM2000Q-12 (2B1Q) and SAM2000-12 (CAP)
1.0SDSL ACCESS MODULE MODELS
SDSL access multiplexers are intended for use in Net to Net Technologies' IPD12000 and IPD4000 DSLAMs. Model types vary by the SDSL line code utilized.
1.1SAM2000G-12
The SAM2000G-12 operates with Transmission Convergence/Pulse Amplitude Modulation (TC/PAM) line code: a sixteen-level PAM technique which incorporates advanced Trellis code, precoding, spectral shaping, equalization circuits and forward error correction. Otherwise known as G.SHDSL or
SHDSL.
1.2SAM2000Q-12
The SAM2000Q-12 operates with Two Binary, One Quaternary (2B1Q) line code: a four-level PAM technique which reduces the signaling rate to half of the bit rate.
1.3SAM2000-12
The SAM2000G-12 operates with Carrierless Amplitude and Phase (CAP) modulation line code: transmit and receive signals are modulated into two wide-frequency bands that can pass through a filter without being attenuated.
NOTE Throughout this document, "SAM2000G" is utilized to indicate all three SDSL access multiplexer models; information given applies to all three models except as individually stated or otherwise noted.