16 | ST40 Speed Instrument Owner’s Handbook |
SeaTalk connections
CAUTION
When instruments are connected to SeaTalk, ensure that the power supply for the SeaTalk 12 V line is protected by a 5 A fuse or circuit breaker.
5 A circuit breaker
Red (+ve)
Uninsulated wire (screen)
Power cable
SeaTalk bus
Note:
A 5 A fuse can be used in place of the circuit breaker, if preferred.
12 V dc supply (e.g. course computer
or battery)
SeaTalk bus
| SeaTalk interface |
|
Typical SeaTalk connections | kit |
Fitting the instrument
Fit your ST40 instrument as shown in the following illustrations.
Remove template from handbook (immediately after index), apply to required location | |
1and mark cutting centre. |
|
ST40 | Instrum |
| |
| ent |
| Tem |
| plate |
TOP |
|
Cut |
|
shaded out |
|
area | only |
|
Cutting centre
Cut |
|
|
57 out |
| |
mhole | ||
m | 25 | |
diam |
| |
| (2. | |
| eter | in) |
