- -30%
- New

DIN RAIL module, 115x90x40mm, supporting both DomBus and Modbus RTU protocols.
It integrates 12x low voltage analog/digital inputs, 3x relays outputs, 3x 115Vac / 230Vac inputs. Optionally it is able to control and monitor the power supply fed to a burglar alarm external siren. Useful to make burglar alarm systems with home automation controllers like Domoticz, Home Assistant, OpenHAB, ...
Full support: most products are designed by us!
Orders are shipped within 1 working day, by post or express courier
24 months warranty, easy return/refund in case of problem
Creasol DomBus37 is a DIN RAIL module, 115x90x40mm, supporting both DomBus and Modbus RTU protocols.
It integrates 12x low voltage analog/digital inputs, 3x relays outputs, 3x 115Vac / 230Vac inputs. Optionally it is able to control and monitor the power supply fed to a burglar alarm external siren.
It can be connected to the home automation controller by a RS485 serial bus (4 wires, 2 for 12/24V power supply, and 2 for data at 115200bps).
As other DomBus devices, DomBus37 is designed to consume low power, be reliable, fully configurable and easy to use. Each input port is fully configurable, for example as analog or digital input, twinbutton (double button connected to a single port), counter, buzzer, NTC 10k, ... Analog ports are able to decode single, double, triple, quadruple balanced alarm sensors.
Complete information and application notes at https://www.creasol.it/DomBus37
Default address: 0xff37
Port# | Name | Capabilities | Default configuration | Description |
1 | IN1 | IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER | IN_DIGITAL |
Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor). |
2 | IN2 | IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER | IN_DIGITAL |
Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor). |
3 | IN3 | IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER | IN_DIGITAL |
Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor). |
4 | IN4 | IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER | IN_DIGITAL |
Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor). |
5 | IN5 | IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER | IN_DIGITAL |
Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor). |
6 | IN6 | IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER | IN_DIGITAL |
Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor). |
7 | IN7 | IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER | IN_DIGITAL |
Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor). |
8 | IN8 | IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER | IN_DIGITAL |
Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor). |
9 | IN9 | IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER | IN_DIGITAL |
Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor). |
10 | IN10 | IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER | IN_DIGITAL |
Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor). |
11 | IN11 | IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER | IN_DIGITAL |
Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor). |
12 | IN12 | IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER, CUSTOM | IN_DIGITAL |
Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor). |
13 | INAC1 | IN_AC, IN_COUNTER | IN_AC | Optoisolated input, that can be connected to a circuit breaker (to notify power outages, expecially for fridges and heat pumps), PIRs with 230V output (to monitor presence), light and appliances (to monitor when light or devices are ON). |
14 | INAC2 | IN_AC, IN_COUNTER | IN_AC | Optoisolated input, that can be connected to a circuit breaker (to notify power outages, expecially for fridges and heat pumps), PIRs with 230V output (to monitor presence), light and appliances (to monitor when light or devices are ON). |
15 | INAC3 | IN_AC, IN_COUNTER | IN_AC | Optoisolated input, that can be connected to a circuit breaker (to notify power outages, expecially for fridges and heat pumps), PIRs with 230V output (to monitor presence), light and appliances (to monitor when light or devices are ON). |
16 | RL1 | OUT_DIGITAL, OUT_RELAY_LP, OUT_BLIND,OUT_FLASH | OUT_RELAY_LP | SPST relay output, NO contact, 10A 250Vac or 30Vdc output capability. Relay contact is protected by varistor. |
17 | RL2 | OUT_DIGITAL, OUT_RELAY_LP, OUT_BLIND,OUT_FLASH | OUT_RELAY_LP | SPST relay output, NO contact, 5A 250Vac or 30Vdc output capability. Relay contact is protected by varistor. |
18 | RL3 | OUT_DIGITAL, OUT_RELAY_LP, OUT_BLIND(1),OUT_FLASH | OUT_RELAY_LP | SPST relay output, NO contact, 5A 250Vac or 30Vdc output capability. Relay contact is protected by varistor. |
19 | VBus | CUSTOM | CUSTOM | 12-24V bus voltage, in mW (for example 13508 for 13.508mV) |
20 | S.Volt | CUSTOM | CUSTOM | Voltage on the Siren port (IN12 terminal block) in mV. For more information, check paragraph below. |
21 | S.Curr | CUSTOM | CUSTOM | Current on the Siren port (IN12 terminal block) in mA. For more information, check paragraph below. |
22 | S.On | CUSTOM | CUSTOM | On/Off entity, to enable/disable power supply to the siren. For more information, check paragraph below. |
23 | S.State | CUSTOM | CUSTOM | Siren power status. For more information, check paragraph below. |
(1): can be used as BLIND output, to open a blind/curtain, but only the previous port can be configured in Domoticz as OUT_BLIND because, when configured as OUT_BLIND, DomBus device automatically configure the next port to drive a relay in open direction.
You might also like