Patton electronics G.SHDSL NTU, Руководство пользователя, Страница: 6 / 150

G.SHDSL NTU User Manual V0.03 5
They can be configured and managed via EOC, or menu-driven VT100 compatible Asynchronous Terminal Interface,
either locally or remotely.
The G.SHDSL NTU is equipped with an auto rate capability that identifies the maximum line rate supported by the
copper loop. This powerful automatic configuration capability makes installation and service provisioning simple and
painless. Further flexibility is provided in the ability to manually set the maximum NTU speed at different levels for
different customer-tailored service offerings.
1.2 Features
Standard G.SHDSL (ITU G.991.2) supports improved reach/speed and greater interoperability
Fast and cost-effective provisioning of traditional frame relay (FR or T-HDLC) or TDM leased line services
User existing copper loop infrastructures
Can operate back to back connection
Efficient single wire pair usage
Up to 2.312Mbps symmetric service bit rate
Auto rate installation maximizes data rate based on loop conditions
Auto configuration wetting current to protect SHDSL line
Local management interface with LCD display
Remote line loopback
SHDSL Line performance monitoring (Data Rate and SNR)
Raw and per time interval statistics
Bandwidth guaranteed transmission equipment
Remote firmware upgrade
1.3 Specification
WAN Interface
• Line Rate: SHDSL per G.991.2
• Coding: trellis coded pulse amplitude modulation (TCPAM-16)
• Support: Annex A(ANSI) and Annex B(ETSI)
• Payload rates: 64kbps to 2.304Mbps (N x 64kbps N=1 to 36) for Serial and Ethernet interface
64kbps to 2.048Mbps (N x 64kbps N=1 to 32) for E1 interface
• Connection: RJ-45 jack (2-wire or 4-wire)
• Impedance: 135 ohms
G.703 Interface (as E1)
• Connection: RJ-45 for balanced 120Ω E1 cable