PD76-R5 (5 relays 16A, 6 digital inputs)
The JetHub PD76-R5 peripheral board is designed for power load control in home automation systems.
The board can be used with processor modules that have a 40-pin JetHub connector.
The functionality of the board depends entirely on the processor module used and the software (firmware) installed by the user.
The board is mounted in a PD76 DIN rail enclosure (130x76x57mm, which is about 4 standard modules for a DIN rail),
- 5 relays with maximum switching current up to 16A; (recommended current - no more than 10A);
- 6 digital inputs "dry contact".
- The operation of peripherals depends on the used processor module and the firmware installed on it.
The following power options are available:
- From an external calibrated DC source with a maximum supply voltage range of 9 to 56 V. Power is supplied to a dedicated external terminal.
- Passive PoE is supported via the Ethernet port connector.
When power is applied to both the external terminal and the Ethernet connector at the same time, power will be supplied from the external terminal.
For power supply through an external terminal, it is necessary to use a stabilized direct current source with a power of at least 5W. The recommended (nominal) input voltage range is from 12V to 48V (the maximum input supply voltage range is from 9 to 56V).
When using Passive PoE technology, power is supplied through the following pairs of Ethernet cable: pair 4(blue, white-blue) and pair 8 (brown, white-brown). The polarity of the connection does not matter. There is no galvanic isolation of power supply circuits in the controller. The recommended nominal input supply voltage of Passive PoE is from 12 to 48V.
- Ambient temperature: 0..+40 С;
- Relative air humidity up to 80% without moisture condensation;
- Closed explosion-proof rooms without aggressive vapors and gases.
GPIO port expander
The peripheral board has an I2C GPIO port expander chip PCF8575. The I2C address of the expander chip is 0x22.
|0 (IO0_0)||Digital input 1|
|1 (IO0_1)||Digital input 2|
|2 (IO0_2)||Digital input 3|
|3 (IO0_3)||Digital input 4|
|4 (IO0_4)||Digital input 5|
|5 (IO0_5)||Digital input 6|
|8 (IO1_0)||Relay 1|
|9 (IO1_1)||Relay 2|
|10 (IO1_2)||Relay 3|
|11 (IO1_3)||Relay 4|
|12 (IO1_4)||Relay 5|
The controller contains 6 discrete inputs of the "dry contact" type, brought out to two external four-pin screw terminals with a contact pitch of 3.5mm. The closure of the discrete input must be made to the common contact (GND). Be careful when connecting digital inputs. Do not apply voltage to the digital inputs, the board has pull-up resistors to 5V.
The controller contains 5 relays with a maximum switching current up to 16A. Recommended rated switching current - 10A. Switched voltage up to 250V AC. Galvanic isolation between relay contacts 1000V.
Relay 1 has an output type 1C (changeover contacts) and is connected to a three-pin screw terminal with a contact spacing of 5mm, the rest of the relays have an output type of 1A (normally open) and are connected to two-pin screw terminals with a contact spacing of 5mm.
The peripheral board is provided with a non-volatile memory chip EEPROM AT24C64 or similar with a capacity of 64 Kbps (8 Kbytes). I2C address - 0x56. This memory can be used to store configuration, settings, etc. when installing the appropriate software.
There is a separate optional 4-pin connector for the UART port on the peripheral board inside the case.
Purpose of the inputs of the "UART1" connector:
The output voltage at pin 1 (SERIAL_ID_VOLTAGE) of the connector is used to identify the UART port and for UART1 port is about 0.2V. >)
A separate optional 4-pin GPIO connector is provided on the peripheral board inside the case, connected to two pins of a 40-pin connector.
Assignment of the inputs of the "IO1" connector:
|3||GPIO1 40-pin connector|
|4||GPIO2 40-pin connector|
The output voltage at pin 1 (IO_ID_VOLTAGE) of the connector is used for identification and for the IO1 port is about 1.8V. (see "Voltage Levels")
Internal peripheral connector
Peripheral connector 40 pin (20 ×2 pin) with a pitch of 1.27 mm is designed to connect the processor module to the peripheral (mother) board.
|Conclusion||Purpose 40 pin||Purpose PD76-R5|
|1||+5.0V||Power supply of the processor module +5V|
|2||+5.0V||Power supply of the processor module +5V|
|5||ETH_TXN||Connecting an External Transformer to an Ethernet PHY|
|6||ETH_TXP||Connecting an External Transformer to an Ethernet PHY|
|7||ETH_RXN||Connecting an External Transformer to an Ethernet PHY|
|8||ETH_RXP||Connecting an External Transformer to an Ethernet PHY|
|9||ETH_LED1||Connecting an External LED to an Ethernet PHY|
|10||ETH_LED0||Connecting an External LED to an Ethernet PHY|
|20||UART1_RX||Displayed on the 4 pin of the UART1 connector|
|21||UART1_TX||Displayed on the 3rd pin of the UART1 connector|
|25||GPIO1||Routed to the 3rd pin of the IO1 connector|
|26||GPIO2||Routed to the 4 pin of the IO1 connector|
|28||GPIO3||Out. GPIO port expander interrupt|
|29||GPIO4||Out. Interrupt from JXM module|
PLD-2x6-2.54 connector for installing the module in the motherboard
Format and pinout changed in future versions. Andnot recommended!
|1||SLOT_ID0_ADC||To set the slot number. Used by the module to determine the slot number in which it is installed|
|2||SLOT_ID1_ADC||To set the slot number. Used by the module to determine the slot number in which it is installed|
|6||I2C_SCL||I2C bus (common for all modules)|
|7||I2C_SDA||I2C bus (common for all modules)|
|8< /td>||SPI_MOSI||SPI bus (common for all modules)|
|9||SPI_MISO< td>SPI bus (common for all modules)|
|10||SPI_SCK||SPI bus (common for all modules) td>|
|11||#MOD_SEL||Chip Select In for SPI module/chip selection (activated by logic low)tr>|
|12||#MOD_INT||Module interrupt Out (logic low, the circuit must provide wired OR operation - open collector output)|
PLD-2x2-2.54 connector for connecting an external terminal
Format and pinout changed in future versions. Not recommended!
|1||IO_3||Wired to external terminal|
|2||IO_2||Wired to external terminal|
|3< td>IO_4||Wired to external terminal (may not be used for 3-pin module)|
|4||IO_1 td>||Output to external terminal|