Acrosser AR-V5430FLAT - Manual (Page 34)

AR-V5430FL Installation Guide
11 TIMEMARK 1PPS Time Mark Output Output
12 GND Ground
Interface Description
* VDC (DC power input):
This is the main DC supply for a 3.8V ~ 5.5V power module board.
* VBAT (Backup battery):
This is the battery backup input that powers the SRAM and RTC when the main power is
removed. The typical current draw is 10uA. Without an external backup battery, the
module/engine board will execute a cold start after every start. To achieve the faster
start-up offered by a hot or warm start, a battery backup must be connected. To
maximize battery lifetime, the battery voltage should be between 2.5V and 3.6V.
* PBRES (Push button reset):
This pin provides an active-low reset input to the engine board. It causes the engine
board to reset and start searching for satellites.
* SELECT:
Do not connect.
* TXA:
This is the main transmits channel for outputting navigation and measurement data to
the user’s navigation software or user written software.
Output RS-232 level
* RXA:
Normally this pin must be kept in high, and if you don’t use this pin please connect a
resistor to pull high.
* Time mark:
This pin provides one pulse-per-second output from the engine board that is
synchronized with the GPS time.
* GND:
GND provides the ground for the engine board. Connect all grounds.
Software User Guide (Click the following link to read the file)
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ER-332_MCX 90_ Software User Manual.pdf