The Door Module connections are:

• RS-485 IN — Main bus input connection. The main bus is brought in to the Door Module from the other bus device main bus output, or from Net Bridge. The main bus consists of the data bus and bus device power supply.
• RS-485 OUT — Main bus output connection. From the main bus output, you can extend the bus to the next bus device.
• CYLINDERS — You can connect two lock cylinders to this connection, in which case you can remotely manage the lock cylinders. The lock cylinders must be on the same door or on parallel doors having the same ground potential. In other words, the lock cylinder cabling distance from the Door Module must be 10 m or less. If the distance is longer, use two Door Modules, one for each cylinder.
• INPUTS - IN 1/IN 2 — These potential-free inputs control relay outputs K1 and K2, or the Key reader STAT2 LED, according to the selected operating mode.
• INPUTS - EXT — A potential-free contact information connected to this input, can be used to control a conditional access right when the Door Module is programmed as a Key switch.
• READER RS-485 — The reader bus is a separate bus from the main bus. It controls the key reader and the RFID reader. A reader connected to the reader bus controls relay outputs K1 and K2 according to the selected operating mode.
• RELAY K1/K2 — You can connect relay outputs K1 and K2 to control an external device, such as an electric lock. You can control the relay outputs according to the selected operating mode either by using a lock cylinder, key/RFID reader, code, calendar control, or by external device, such as a door opening button, connected to input connections IN1 and IN2.