Novatel user manual DL-V3 Serial Port Pin-Out Descriptions, DL-V3 I/O Port Pin-Out Descriptions

A.2.1 Port Pin-Outs

Table 11: DL-V3 Serial Port Pin-Out Descriptions

Connector	COM1	COM2	AUX
Pin No.	RS-232	RS-232	RS-232
1	N/C	N/C	N/C
2	COM1_Rx	COM2_Rx	COM3_Rx
3	COM1_Tx	COM2_Tx	COM3_Tx
4	N/C	POUT	POUT
5	GND	GND	GND
6	N/C	N/C	N/C
7	RTS1	RTS2	RTS3
8	CTS1	CTS2	CTS3
9	N/C	N/C	N/C

Table 12: DL-V3 I/O Port Pin-Out Descriptions

Connector Pin No.	Signal Name	Signal Descriptions
1	VARF	Variable frequency out
2	PPS	Pulse per second
3	MSR	Mark 1 output
4	EVENT1	Mark 1 input
5	PV	Valid position available
6	EVENT2	Mark 2 input, which requires a pulse longer than 150 ns is
		pulled up to 5V through a 47kΩ resistor in the DL-V3.
		Refer also to the MARKCONTROL command in the
		OEMV Firmware Reference Manual.
7	_RESETOUT	Reset TTL signal output to an external system. Active low.
8	ERROR	Indicates a fatal error when high.
9	GND	Digital ground

76 DL-V3 User Manual Rev 3