SDM-SIO4A 4-Channel Serial I/O Module
The SDM-SIO4A is a serial I/O expansion module for Campbell Scientific data loggers. It is designed to add four additional and individually configurable and addressable RS-232, RS-422, or RS-485 (half- or full-duplex) serial ports to an SDM-capable data logger for the purposes of interfacing with intelligent sensors, actuators, or displays.
Up to three SDM-SIO4A modules can be connected to a single data logger SDM port. The SDM-SIO4A channels behave much like a native data logger serial port and use the same familiar serial I/O commands. The SDM-SIO4A is transient and surge protected to IEC61000-4-5 level 4 on the serial port interfaces, avoiding the need for separate transient protection in most applications.
- Easy and compact method to add up to 12 additional serial ports to an SDM-capable Campbell Scientific data logger
- Fully compliant with the RS-232, RS-422, and RS-485 (half- and full-duplex) standards
- Can buffer large amounts of serial sensor data between datalogger processing events
- Supports data logger terminal "talk-through" mode, facilitating serial device testing and diagnostics
- Includes transient and surge protection on the serial port interface, eliminating the need for separate transient protection
- Low idle power consumption, which is ideal for battery-powered stations
Function | Expands the number of serial devices that can communicate with a data logger. |
---|---|
Number of Channels | 4 |
Supported Data Rates | 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200 bits/s |
Supported Modes of Operation |
|
Supported Data Format |
|
Auto Baud Rate Detection | Auto baud rate detection is NOT supported. |
PakBus Communications | Use of the serial port for general PakBus communications is not currently supported. |
Voltage |
|
Operating Temperature | -40° to +70°C (standard) |
Humidity | 0% to 95% (non-condensing) standard |
Mounting Holes | Two spaced 17.78 cm (7 in.) apart |
Mounting Clips | Optional DIN rail mounting clips are available, which can be fitted to the base of the case. |
EMC Compliance | The SDM-SIO4A has been tested and shown to comply with IEC 61326. The device incorporates transient and surge protection that is designed to meet IEC61000-4-5, level 4, providing the device is adequately grounded. |
Dimensions | 6.4 x 15.45 x 2.2 cm (2.51 x 6.09 x 0.86 in.) excluding mounting tabs |