The Thermocouple Termination Module (TBQA). The TBQA terminal board lands the thermocouple inputs. The 90 terminal points relate to 45 thermocouple signals landed on the TBQA board. In the first core, 15 signals (thermocouples #1 through #15) are written to the TCQA board in the first core, 15 signals (thermocouples #16 through #30) are written to the TCQA board in the second core, and 15 signals (thermocouples #31 through #45) are written to the TCQA board in the third core. The TBQA board in the fifth  core has 42 possible thermocouple signals and they are all written to the TCCA board in the fifth core. The TBQA board also provides the cold junction circuitry for the thermocouples