2
Morrison Bros. Co. ‑ Dubuque, IA ‑ 800‑553‑4840
918AC‑0160 PP
Rev. 09-27-2022
5. Install the screw that was removed in step 1 into the standoff and through the mounting hole of the 918AC
Expansion Module as shown in Figure 1.
6. After the 918AC Expansion Module has been installed, restore power to the 918AC Console.
7. Once the 918AC Expansion Module is connected, configure the settings then press the reset button on the
Module. The reset button will need to be pressed
any time
the settings are changed.
Steps to Configure the 918AC Series System Interface Motherboard
Non-Persistent Output Function
The Non-Persistent relay output function allows each relay output to be reset to its normal condition once the
active alarm has been acknowledged.
NOTE:
The Non-Persistent function can be used with the Auto-Timeout function (see page 3). However, the
relay output Latching Mode (see page 4) takes precedence over the Non-Persistent function.
Figure 2 - Non-Persistent Relay Output Configuration
1. Locate the four position, Non-Persist switch, SW 1, on the expansion board (see Figure 2).
2. Place the DIP switch Position One in the “ON” position to configure the Motherboard to reset the channel 1
relay output when the triggering alarm condition(s) have been acknowledged. Place the DIP switch Position
One in the “OFF” position to prevent the alarm acknowledgement from changing the state of the channel 1
relay output.
3. Place the DIP switch Position Two in the “ON” position to configure the Motherboard to reset the channel 2
relay output when the triggering alarm condition(s) have been acknowledged. Place the DIP switch Position
Two in the “OFF” position to prevent the alarm acknowledgement from changing the state of the channel 2
relay output.
4. Place the DIP switch Position Three in the “ON” position to configure the Motherboard to reset the channel 3
relay output when the triggering alarm condition(s) have been acknowledged. Place the DIP switch Position
Three in the “OFF” position to prevent the alarm acknowledgement from changing the state of the channel 3
relay output.
5. Place the DIP switch Position Four in the “ON” position to configure the Motherboard to reset the channel 4
relay output when the triggering alarm condition(s) have been acknowledged. Place the DIP switch Position
Four in the “OFF” position to prevent the alarm acknowledgement from changing the state of the channel 4
relay output.
6. Locate the reset push button on the expansion board.
7. Press and release the reset push button to complete the configuration of the Non-Persist relay output settings.
