Since the Sandel ST3400 can display traffic information, can it substitute one of the TCAS/IVSI indicators in a TCAS II system?
In most cases, aircraft that require TCAS II must have 2 dedicated TCAS/IVSI indicators that display Resolution Advisories (RA). While the ST3400 can display traffic information from a TCAS II system, it cannot be a substitute for either of the dedicated TCAS indicators within the TCAS II system.