Initiator Simulator

TM 10-1670-296-20&P 0002 00 0002 00-23 Initiator Simulator. The initiator simulator is used during testing of the EPJS to simulate the squib. When the EPJS components are connected and functioning properly, the initiator simulator will indicate if the EPJS jettison circuits are functioning properly. The initiator simulator has two small capacity circuit breakers that will operate (throw) from ON to OFF when 28 VDC is applied by setting the JETTISON SWITCH on the control box to ON. The squib has two redundant firing circuits. The two circuit breakers simulate these two redundant squib firing circuits. Squib Tester. The squib tester is used to confirm that the squib’s two redundant firing circuits are properly wired and functioning. It allows the squib circuits to be tested without firing the squib. The squib contains two standard AAA batteries and two LED lamps. These lamps provide a positive indication of open and shorted squib firing circuits.