Maintenance4-253360-A2-GB20-10 June 19965. The following screens alternately appear on theLCD until you press a Function key to return tothe Lamp Test screen. In addition, all LEDs blink.F1 F2 F3F10123456789 : ; < = > ?@ABCDEFGHIJKLMNOF2 F36. When you are satisfied that all LEDs are lightingand the LCD is functioning properly, abort theLamp test from the Lamp Test screen. If there isno activity on the E1 NTU front panel for fiveminutes, the Device Health and Status screenappears automatically. However, the Lamp testremains active until it is aborted.Aborting a Lamp TestTo abort the Lamp test,1. Display the Lamp Test screen. To do this when theLCD is alternating the Lamp test screens, pressany Function key. Otherwise, follow Steps 1through 3 for starting a Lamp test.F1Lamp Test:Abort StartF2 F32. From the Lamp Test screen, select Abort.F1Lamp Test:Abort StartF2 F3Displaying E1 NTU Test StatusUse the Test Status command to display the active testsfor the E1 NTU. Status messages that can display on thefront panel LCD are listed in Table 4-11.To display test status,1. From the top-level menu screen, select Stat.F1E1 HDSL NTUStat Test CnfigF2 F32. From the Status screen, press the key until theTStat selection appears on the screen.F1Status:HDSL DevHS STestF2 F33. Select TStat.F1Status:STest Perf TStatF2 F3The Test Status screen appears showing you whattests are active for the E1 NTU.