Chapter 6. Configuration61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual 41Figure 6-7Data Bits Menu TreeThe setting in Figure 6-8 allows for V.25 bis messages in asyn-chronous (start/stop) data format.Figure 6-8V.25 bis ASYNC Menu TreeAlthough V.25 bis allows asynchronous data format, asynchro-nous DTE is more likely to support the AT command set thanV.25 bis.V.25 SYNC HDLC DialingTo set the Dial Options for V.25 HDLC, choose 1=V.25 HDLCfrom the front panel or the VT 100 terminal (see Figure 6-8 for themenu tree). This setting provides V.25 bis messages in bit-syn-chronous format (for example HDLC, SDLC, X.25). The bit-syn-chronous format is the most commonly used by V.25 bis.This option specifies that the characters should be 7-bit ASCII,with the 8th bit ignored (it may be either 0 or 1).3=CONFIG1=Netw. options2=DTE options3=Protocol4=Quick setup5=Security6=Remote Config1=Bit Rate2=Connector Type3=RTS Options4=CTS Options5=CD Options6=DTR Options7=DSR Options8=Flow Control9=Data Format1=Asynchronous2=Synchronous1=Data Bits2=Parity Bits3=Stop Bits1=8 Data bits2=7 Data bits3=CONFIG1=Netw. options2=DTE options3=Protocol4=Quick setup5=Securtiy6=Remote Config1=Dial Line2=Leased Line1=Front Panel2=RS-3663=AT commands4=V.255=Disabled1=V.25 HDLC2=V.25 ASYNC3=V.25 BISYNC4=V.25 HDLC FLAG1=Switch protocl2=Call type3=Terminal ID4=Busy Out5=Dial options6=Auto answer7=Answer tone8=Connect Timout9=Call Screening10=SBus Terminati
