A 50-pin D-sub connector should be obtained with enough attached cable length to allow the IA to be connected and the test carried out by the Ncompass™ system. Furthermore, sufficient cable length will also be needed to complete the UUT’s final termination and, if applicable, for heat-shrink or another finishing product to be applied.
If the 50-core cable is not already attached and connected to the D-sub connector, as illustrated below, then a bespoke D-sub could be made from component parts as required with the relevant number of cores and cable-core lengths.
The following processes are for guidance in the identification of cables using the BoB MKII
1. Connect the male 50 pin D-Sub connector (with termination cables attached) to the female 50-pin D-sub connector on the BoB MKII facia plate.
2. The BoB MKII should now be selected to either ‘Field’ (BAT) or ‘Bench’ (EXT) operation mode using the power switch. . Then use the push switch to perform a test to ensure that the power source is compatible to enable the correct functioning of the BoB MKII.
3. Identification of each cable’s end can now be carried out either using the Test Bar or a Test Probe attached to the Test Point.
4. Contact of exposed cable ends onto the test bar or test probe will cause the associated LED on the BoB MKII facia plate to illuminate and the buzzer to sound.
Only individual or small groups of cable ends should be tested at one time to prevent identification confusion or excessive battery usage.
5. Once the required cable end is located, it can now be prepared for termination or soldering and attached to the circuit connector end to complete the interface cable assembly.
Soldering of cable ends or connections should only be carried out
with the cable assembly disconnected from the BoB MKII.
Only individual or small groups of cable ends should be tested at one time to prevent identification confusion or excessive battery usage. 
