Chapter 4.Operation18 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1Dswitch type, SPIDs, LDNs, or Leased/dial line. Also, items suchas bit rate, protocol, and call type take effect only at the begin-ning of a new call.Front Panel DTE IndicatorsThe front panel DTE indicators (see Figure 4-1) reflect the statusof each DTE port on the ISU 2x64. The indicators show the cur-rent state of the port being displayed from the Current Statusmenu. To change the DTE indicators between the two DTE ports,use the Up and Down arrow keys to bounce between the twoDTE ports Current Status menus. Once this menu is exited, theDTE indicators reflect the status of the DTE# that was last shown.See Table 1-A on page 3 for a listing of the front panel DTE indica-tors.Figure 4-1Current Status MenuThe ISU 2x64 automatically updates the Current Status menu tothe DTE# that is receiving an incoming call For example, if theCurrent Status menu shows the state of DTE#1, and a call isincoming on DTE#2, the ISU 2x64 automatically changes the dis-play to show the Current Status menu for DTE#2. Change this byusing the Up and Down arrow keys to select either DTE.ENTER 1 2 34 5 67 8 9#0*CANCELRS CS TD RD CD TR SRISU 2X64
