When you remove the back cover of the SK618, SK633, SK634, SK642, and SK662, what are the terminals for?
Our telephone dialers each include a set of expansion terminals:
Terminal type / Dialer model |
Count |
Specification |
| Input (trigger) terminals for adding wired NC contacts (like our SK619) |
|
|
| SK618
SK662 |
2
3 |
|
| Output terminal for an external wired siren of 9V to 12V (like our SK613) |
|
|
| SK618
SK662 |
1
1 |
|
| DC power output terminal |
|
|
| SK618
SK662 |
1
1 |
9V
12V |
| Ground terminal |
|
|
| SK618
SK662 |
1
1 |
Instructions for using the terminals are below:

