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| History | |||
|---|---|---|---|
| Issue Date | Notes | ||
| 2024/01/15 | First documentation release | ||
Contents
RTINEdit
RTIN is an expansion board that can be plugged directly on RIALTO mezzanine connectors. It adds some peripherals for extending the IoT capabilities of RIALTO SBC.
Block DiagramEdit
The following picture shows RTIN's block diagram:
Connection layoutEdit
The following picture shows RTIN's connection layout:
Connectors pinoutEdit
J3 - UART2Edit
J3 is a Phoenix 282837-3 3x50.8mm connector.
The following table reports the connector's pinout:
| Pin# | Pin function | Pin Notes |
|---|---|---|
| 1 | RS485_A | MAX13487 pin 6 |
| 2 | RS485_B | MAX13487 pin 6 |
| 3 | GND | connected to DGND |
J4 - UART5Edit
J4 is a Phoenix 282837-3 3x50.8mm connector.
The following table reports the connector's pinout:
| Pin# | Pin function | Pin Notes |
|---|---|---|
| 1 | RS485_A | MAX13487 pin 6 |
| 2 | RS485_B | MAX13487 pin 6 |
| 3 | GND | connected to DGND |
JP1 - Relays outputEdit
J4 is a Phoenix 1757491 MSTBA 2,5/ 4-G 4x5mm connector.
The following table reports the connector's pinout:
| Pin# | Pin function | RIALTO GPIO | Pin Notes |
|---|---|---|---|
| 1 | RL1.1 | J61.5 (GPIO1_IO01) | N.O. |
| 2 | RL1.2 | N.O. | |
| 3 | RL2.1 | J61.6 (GPIO1_IO02) | N.O. |
| 4 | RL1.2 | N.O. |
J5 - Digital inputEdit
J5 is a Phoenix 1803280 MC 1,5/ 3-G-3,81 3x3.81mm connector.
The following table reports the connector's pinout:
| Pin# | Pin function | RIALTO GPIO | Pin Notes |
|---|---|---|---|
| 1 | DI1 | J60.8 (MEZZANINE_GP1) | 1K ohm pull-down |
| 2 | DI2 | J60.9 (MEZZANINE_GP2) | 1K ohm pull-down |
| 3 | VIN | connected to VIN va MF-SMDF050 1.2A resettable fuse |