ACCULINK 3163 DSU/CSU4-2 March 1999 3163-A2-GB20-10Self-Test HealthUse the Self-Test Health command to display theresults of the power-up self-test. Possible messages arelisted in Table 4-1. See Chapter 2, Installation, for moreinformation about power-up self-test. ProcedureTo display power-up self-test results:1. From the top-level menu screen, select Stat.F1DSU ESFStat Test CnfigF2 F32. From the Status screen, select STest.F1Status:DevHS STest PerfF2 F33. View the results of the last power-up self-test. Ifno problems were found during power-up, thefollowing message appears.F1STest Health:PassedF2 F3Table 4-1Self-Test Health MessagesMessage DescriptionPassed No problems were found during power-up.CPU fail The central processing unit failed internal testing.Device fail One or more of the unit’s integrated circuit chips failed to pass internal device level testing.B8ZS/LOS fail The unit failed to encode data properly or to detect Loss Of Signal.Alarm fail The unit failed to transmit AIS or to detect an Yellow alarm.Memory fail The unit failed program checksum verification.LCD fail The front panel liquid crystal display (LCD) failed.NET T1 fail The unit failed to internally loop data on the network T1 circuit.DSU fail The unit failed to internally loop data on the DSU.DSU Port 1 fail Port’s integrated circuitry failed to pass device internal testing.Modem fail Unit failed to internally loop data through the modem circuit.Failurexxxxxxxx An 8-digit hexadecimal failure code is provided for service personnel.