X2-SDLMC/X3-SUB Port Pinout
The X2-SDLMC & X3-SUB data loggers include a series of ports with MCIL connectors. The port pinout information is given below.
Figure 1: MCIL-8-MP sensor port on the X2-SDLMC & X3-SUB data loggers.
8-Pin Sensor Port Signal Information
Note: All splitter extensions contain the same pinout and signal configuration; however, only one 232 sensor can be connected to each splitter/port. The arrow on the 2-way splitter and the end port on the 4-way splitter indicate which port the 232 sensor may be connected.
| MCIL-8-MP Sensor Port Pin# | Signal |
| 1 | RS232 Tx* |
| 2 | GND |
| 3 | RS232 Rx* |
| 4 | +5V |
| 5 | +12V |
| 6 | SDI-12 |
| 7 | RS-485B |
| 8 | RS-485A |
*RS-232 transmit/receive is labeled from the data logger’s perspective (should be wired to the sensor’s receive/transmit, respectively).
Figure 2: MCIL-6-FS power port on the X2-SDLMC & X3-SUB data loggers.
6-Pin Power Port Signal Information
| MCIL-6-FS Power Port Pin# | Signal |
| 1 | X2 Primary Power |
| 2 | Regulator Solar |
| 3 | X2 GND | Regulator GND | BAT- |
| 4 | BAT+ |
| 5 | Host RS-485B |
| 6 | Host RS-485A |