61202295L1-1A © 2003 ADTRAN, Inc. 45Chapter 7 Test MenuThe TEST submenus initiate different types of unit tests and let you view test results in the LCD window(see Figure 7-1). This menu contains three branches: N ETWORK TEST, R UN S ELFTEST, and P ORT TESTS.Figure 7-1. Test Menu TreeNETWORK TESTSNetwork tests control the activation of loopbacks and the initiation of data test patterns. They run on thenetwork interface (NI). Options include 1) LOCAL LOOPBK, 2) REM LB, 3) TEST PATTERN, 4) CLRERRS, and 5) INSERT 511 ERR.Test execution will disrupt some of the unit’s normal operation. See individual menu itemsconcerning tests before executing.NO LOOPBACK1) LOCAL LOOPBK LINE ON NO LOOPBACKPAYLOAD ON V.54 INBAND PLB2) REM LB ANSI FDL LLB1)NETWORK TESTS AT&T INBAND LLB3) TEST PATTERN NO PATTERN ANSI FDL PLB1:8 ALL DS0s AT&T FDL PLB511 ACT. DS0s4)TEST ALL ZEROSALL ONES4) CLR ERRS5) INSERT 511 ERR2)RUN SELFTEST3)PORT TESTS 1) DTE LOOPBK2) DATA LOOPBK