产品名称：BLACK BOX ME231A-R2                                                           
型号：ME231A-R2                                                                         
品牌：BLACK BOX

描述：   
Provides data rates up to 4.6 Mbps over 2-wire, voice-grade wiring.
规格：
 Selectable 64-kbps rates enable you to choose the bandwidth you need.
Supports distances up to 9.9 miles at lower speeds over 19 AWG wiring.
Probes voice-grade wiring to determine the optimum data rate supported.
Supports G.994.2 handshaking, enabling it to adapt the rate automatically 
to the existing line condition.
Features an RJ-45 port for managing via a Telnet connection.
Simple to set up and, once configured, operates .
Transformer-coupled two-wire interface boasts 2500-VRMS isolation.
Works with other extender/NTUs to provide interface conversion along with 
network termination and extension.