No. The light tray is only available for the -3B and -14RB versions. If panel lighting is required, the 1394T101-3B is the appropriate selection.
No. The 1394T101-7B requires no periodic scheduled maintenance or calibration for continued airworthiness. If the unit fails to perform to specifications, it must be returned to Mid-Continent Instruments and Avionics or their authorized designee. There are no field-repairable parts.
Yes. Per SIL 1394T101-01 (effective April 1, 2025), the 1394T101-7B supersedes the 1394T100-7B and is a form, fit, and function equivalent. The SIL may be used to demonstrate that the new part number can be used in lieu of the discontinued part number. Note also that per SIL 1394T100-02, the 1394T100-7RB was previously consolidated into the 1394T100-14RB; users of the older -7RB should reference the full supersedure chain.
The 1394T101-7B uses a 3-pin MIL-DTL-5051 connector. The mating connector is MS3106A10SL-3S.
The -3B includes a lighting assembly that adds approximately 2 ounces. The -7B omits the light tray, resulting in a weight of 11 oz vs. 13 oz for the -3B.