The main signs (see section I) may be supplemented by the following auxiliary signs:1
Note: The panels are placed above the main sign.
In 1,000 m, stop
In 1,500 m, ferry-boat
not moving independently
Luminous white arrow combined with certain lights, with the following meanings:
(a) With green light
Example: Permission to enter the basin to which the arrow is pointing
(b) With red light
Example: No entry to the basin to which the arrow is pointing
Note: The pointers need not necessarily be white and may be placed beside or below the main sign.
Berthing prohibited (over a distance of 1,000 m)
Note: These panels are placed below the main sign.