"Bodysnatcher" wrote
| Hall switch : 2 x 2 core. 1st Cable - black to 2-way terminal
| top, and red to Com top. 2nd Cable - black to 2-way terminal
| bottom and red to 1-way terminal bottom. And a link wire from
| Com top to Com bottom. Landing light ; 2 x 2 core. One core
| of each cable not used (snapped off)
| 1st Cable - red to 1-way terminal bottom, 2nd Cable - black
| to top Com.

I think you're confused by the way the terminals are appearing on the
switch. They almost certainly aren't 'top' and 'bottom' like so:


COM L1 L2
| | |
|------| |
| |
|-----------|

|-----------|
| |
| |----|
| | |
L2 L1 COM


but are more likely 'left' and 'right', with alternate switches being
'upside down':

COM L1 L2
/\ \ /
/ \ \ /
/ \ \/
L2 L1 COM


Owain