The deciding point here is how and where the sign is mounted. If the entrance is not handicap accessible. you have to provide a directional to a handicap accessible entrance. This would typically be mounted near the door, on the wall, at regulation height. There is no scenario where a post mounted sign would require braille and tactile text as that is a directional sign.
4.30.7 - (c) Accessible entrances when not all are accessible (inaccessible entrances shall have directional signage to indicate the route to the nearest accessible entrance); (d) Entrances which are not accessible shall have directional signage complying with 4.30.1, 4.30.2, 4.30.3, and 4.30.5, which indicates the location of the nearest accessible entrance. (e) Displays and written information, documents, etc., should be located where they can be seen by a seated person. Exhibits and signage displayed horizontally (e.g., open books), should be no higher than 44 in (1120 mm) above the floor surface.
Who gave you the design and are you responsible for ensuring code compliance?