What are the jumpers on the ADC-AC-X1100 for?
The jumpers for the X1100 can vary depending on the model in use (i.e., X1100A and X1100C).
X1100A
J4
Set J4 to ON during installation while the controller is not powered. Setting to ON allows normal operation and the controller's local memory database to be written.
Important: If this step is skipped, the local database will be cleared if the board experiences a drop in power or is reset.
J9 and J5
These jumpers are the end-of-line termination jumpers. J9 for expansion port 1 and J5 for expansion port 2.
Important: If either expansion port on the X1100 will be the beginning of an expansion communication bus, set that communication port's end-of-line termination jumper to IN.
Leave the jumper set to OUT only if a single communication bus is wired directly to two expansion modules. This is rare and not recommended unless required to minimize wiring.
For more information about wiring and end-of-line jumper configurations, see Wire and configure an X100 Two Reader Expansion Module (ADC-AC-X100) to an X1100 Door Controller (ADC-AC-X1100).

X1100C
J4 Controller Battery
Set J4 to ON during installation while the controller is not powered. Setting to ON will enable the use of a CR2032 as a back up battery for the X1100C. This is not required as the X1100C has a super capacitor for maintaining memory while powered off. However, it is recommended to use it if prolonged or frequent power outages are expected.
CN1503 and CN1504 OSDP End of Line jumpers
For OSDP readers, these should remain installed. For Wiegand readers, the jumpers should be removed for proper functionality.
CN501 Reader Output Selection
- Jumper Position 1 and 2 Regulated 12 V ± 10%, 600 mA per reader
- Jumper Position 2 and 3 Unregulated, reader voltage is input voltage (12-24 V)
J5 and J9
End of Line jumper for expansion rs-485 wiring. For more information, see Wire and configure an Aero expansion module to an X1100 Door Controller ADC-AC-X1100.
