Electrical Specifications

Parameter	Minimum	Typical	Maximum
Input Protection (TVS)	-100 V		+100 V
Inrush Current (Max)		2.0 A
RS232
Tx Voltage	± 5 V	±5.4 V
Tx Short Circuit Current		±30 mA	±60 mA
Rx Threshold Low	0.6 V	1.2 V
Rx Threshold High		1.5 V	2.0 V
RS422
Tx Differential Output	1.5 V
Tx Short Circuit Current			±250 mA
Rx Differential Threshold	-0.2 V		-0.05 V
GPIO when set to 5 V
Output Voltage Low	0 V		0.3 V
Output Voltage High	4.8 V		5 V
Input Voltage	-20 V		20 V
Input Threshold Low			1.5 V
Input Threshold High	3.5 V
Output Current			5 mA
1PPS when set to 5 V
Output Voltage Low	0 V		0.3 V
Output Voltage High	4.5 V		5 V
Output Current			50 mA
GPIO when set to 3.3 V
Output Voltage Low	0 V		0.3 V
Output Voltage High	3 V		3.3 V
Output Current			5 mA
Input Voltage	-5 V		5 V
Input Threshold Low			0.8 V
Input Threshold High	2 V
1PPS when set to 3.3 V
Output Voltage Low	0 V		0.1 V
Output Voltage High	3 V		3.3 V
Output Current			50 mA
GNSS Antenna
Active Antenna Supply Voltage	4.5 V		4.6 V
Antenna Supply Current			200 mA
Alarm Output
Voltage			36 V
Current			0.5 A
On Resistance			2.5 ohms

Note: Power supplies should be designed to operate well within the bounds of the voltage operating envelope to avoid engaging the device’s built-in protection circuitry.