| Line Interface Base on ISDN U-interface Fully Compliant with ANSI T1.601-1992 specification Line Interface circuit protects against lightening and Power surges Line Rate 160 kbps Line Coding 2B1Q Line Type Unconditional twisted pair Line Impedance 135Ω Transmit Level 13.7 dBm Receive Sensitivity -42dBm Connector RJ-45 Range Full duplex over 2-wire subscriber line up to 5.5 Km ( 26AWG ) Full duplex over 4-wire subscriber line up to 6.5 Km ( 26AWG ) DTE Interface V.35 , V.36 / RS-449 , RS-530 , X.21 / V.11 , G.703 , RS-232D / V.28 ( Cable Connector ) Connector:DB25 Terminal Data Rates Sync : 32k , 56k , 64k , 128kbps Async : 4.8k , 9.6k , 19.2k , 38.4kbps support V.110 rate adaption Diagnostics LL , RL , DL , BERT Build in 511 Configuration Use LCD Display and Keyboard Control Alarm Use LEDs and LCD LED Indicator PWR , L1 , L2 , ALM , TST , SYN , AIS , YEL Network management SNMP ( Option ) LED Indicator TD , RD , TST , RDY , ALM , SYNC , DCD , DSR , DTR Clock source Internal , External , Loop Physical Dimensions 257mm ( W ) x 266mm ( D ) x 60mm ( H ) Power Requirement Input Voltage 90 ~ 260 VAC 50 / 60 Hz , -36 ~ -72Vdc ( Option ) Configuration 5W ( Max ) Operating Temperature 0℃ to 50℃ Relative Humidity 0% to 95% non-condensing | 
