Specifications
Rev. 7 August 2021 43 41110485
RS-485 Serial
Interface
Serial port configured for RS-485:
• Half-duplex (2-wire) interface
• Software-configurable termination resistor
• Maximum baud rate: 115.2 k
• Maximum cable length: 25 meters at maximum baud rate
Figure 3-2: DB-9 Female Serial Connector
SIM Card Interface • Mini-SIM (2FF) SIM card operated at 1.8 V/3.3 V.
Input / Output
For more information, see page 26.
• Configurable I/O
• Wakeup on I/O, serial, or cellular events
Power Adapter Pins 6-Pin connector:
• Power
• Ground
• On/Off
• I/O1
• I/O2
• I/O3
LEDs
See LED Behavior on page 31.
2 LEDs:
• Power
• User configurable
Table 3-1: Specifications (Continued)
Table 3-3: RS-485 Serial Connector Pin-out
Name Pin Description Type
RS-485_B 1 RS-485 Negative Signal Bidirectional
RS-485_A 2 RS-485 Positive Signal Bidirectional
N/A 3 —
N/A 4 —
GND 5 Ground GND
N/A 6 —
N/A 7 —
N/A 8 —
N/A 9 —
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