GV75W User Manual GV75W User Manual WCDMA/GSM/GPRS/GPS Tracker TRACGV75WUM001 Version: R1.
GV75W User Manual Document Title GV75W User Manual Version 1.00 Date 2016‐09‐09 Status Release Document Control ID TRACGV75WUM001 General Notes Queclink offers this information as a service to its customers, to support application and engineering efforts that use the products designed by Queclink. The information provided is based upon requirements specifically provided to Queclink by the customers.
GV75W User Manual Contents Contents ............................................................................................................................................ ‐ 2 ‐ Table Index ........................................................................................................................................ ‐ 3 ‐ Figure Index ....................................................................................................................................... ‐ 4 ‐ 0.
GV75W User Manual Table Index TABLE 1 : REFERENCE ........................................................................................................................ ‐ 6 ‐ TABLE 2: TERMS AND ABBREVIATIONS ............................................................................................. ‐ 6 ‐ TABLE 3: PARTS LIST .......................................................................................................................... ‐ 7 ‐ TABLE 4: DESCRIPTION OF GV75W INTERFACE.............
GV75W User Manual Figure Index FIGURE 1: APPEARANCE OF GV75W ................................................................................................. ‐ 7 ‐ FIGURE 2: TYPICAL POWER CONNECTION ...................................................................................... ‐ 11 ‐ FIGURE 3: TYPICAL IGNITION DETECTION ....................................................................................... ‐ 11 ‐ FIGURE 4: CONNECTION FOR NEGATIVE TRIGGER INPUTS.....................................
GV75W User Manual 0. Revision History Revision 1.
GV75W User Manual 1. Introduction The GV75W is a compact waterproof GPS tracker designed for a wide variety of vehicle tracking applications. It has multiple I/O interfaces that can be used for monitoring or controlling external devices. Its built‐in GPS receiver has superior sensitivity and fast time to first fix.
GV75W User Manual 2. Product Overview 2.1. Appearance Figure 1: Appearance of GV75W 2.2. Parts List Name GV75W Tracker Picture 102mm*46mm*20.
GV75W User Manual 2.3. Interface Definition GV75W has 11 interfaces which include the connection for power, ignition input, digital input, digital output, USB, TXD and RXD, etc. The user cable info is shown in the following table.
GV75W User Manual 3. Getting Started 3.1. Install a SIM Card Step 1: Remove the top cover. Step 2: Insert the SIM card into the SIM card holder. Note: Press down on the SIM card slightly to make it slide into the slot. Step 3: Place the top cover on the bottom cover, and tighten both covers until they snap. Note: Make sure that the seal ring is in place and there is no obvious gap between covers and seal ring.
GV75W User Manual Step 4: Turn over the device and tighten the screw with screw cushion. Step 5: Connect the device to extension cable or cut off the 12Pin Molex connector. 3.2. Switch on the Device The method to power on GV75W: Use external power to turn on. When the external power is removed, GV75W will switch to internal backup battery and keep on running. When internal backup battery is exhausted, GV75W will report a message and then turn off. 3.3.
GV75W User Manual Figure 2: Typical Power Connection 3.4. Ignition Detection Logical Status Electrical Status Active 5.0V to 32V Inactive 0V to 3V or open Table 6: Electrical Characteristics of Ignition Detection Figure 3: Typical Ignition Detection The white wire is used for ignition detection. It is strongly recommended to connect this wire to ignition key at “RUN” position as shown above.
GV75W User Manual 3.6. Digital Output The outputs are Open‐Drain type with no internal pull‐up resistor which can be used to control a relay. It means that the user has to connect a pull‐up resistor or a relay coil between the output pin and any positive voltage (32V max) to generate correct output. Each output can drive a continuous current of 0.15A. The green wire is low side 150mA max, and the blue wire is low side 150mA max with latch.
GV75W User Manual 3.7. UART Interface There is one UART interface on GV75W. UART is used for configuration, firmware download, and communicating with external devices such as CAN Bus module and RFID reader. Please note the UART interfaces are all RS232 level. For RS232 level, valid signals are 3V to 15V and ‐ 3V to ‐15V, and the ‐3V to +3V is not a valid level. 3V to 15V corresponds with logic 0 of TTL level, while ‐3V to ‐15V corresponds with logic 1.
GV75W User Manual CEL (Note 1) GPS (Note 2) PWR (Note 2) Device is searching GSM network. Fast flashing (Note 3) Device has registered to GSM network. Slow flashing (Note 4) SIM card needs pin code to unlock. ON GPS chip is powered off. OFF GPS sends no data or data format error occurs. Slow flashing GPS chip is searching GPS info. Fast flashing GPS chip has gotten GPS info. ON No external power and backup battery voltage is lower than 3.35V.
GV75W User Manual 4. Troubleshooting and Safety Info 4.1. Troubleshooting Trouble Possible Reason Solution After GV75W is turned on, the CEL LED always flashes quickly. The SIM card is not inserted. Please insert the SIM card into GV75W. The signal is too weak; GV75W can’t register to the network. Please move GV75W into places with good GSM coverage. The SIM card is PIN locked. Use SIM card without SIM PIN, or unlock SIM PIN. The SIM card in GV75W doesn’t support GPRS.
GV75W User Manual NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
