Pass Codes

A Code 111 indicates no service codes are recorded, and system passes that portion of test. If Code 111 is not received in KOEO SELF-TEST, codes received during KOER SELF-TEST may not be valid. Code 111 (pass code) must be observed in KOEO SELF-TEST. A Code 111-1-111 output during KOEO SELF-TEST indicates no KOEO codes or Continuous Memory Codes are recorded.