OTIS OI-7543, Assembly, Page: 52 / 57

Wiring Configurations-
Relay 2 (High Alarm)
52
1. After the Relay 1 Wiring Configurations have been
completed (see previous section), locate the Relay 2
terminal block on the back of the Terminal Board.
2. Connect a jumper wire (blue) from the terminal
labeled “COM” on the Relay 1 Terminal Block to the
terminal labeled “COM” on the Relay 2 Terminal
Block.
3. Connect the positive wire (red) from the High Alarm to
the terminal labeled “NO” (or “NC”) on the Relay 2
Terminal Block.
4. Connect the neutral wire (black) from the High Alarm
to the DC Power Supply.
5. Once the Relay 2 Wiring Configurations are complete,
proceed to the next section.