Fibocom EVK-GT8230 User manual

EVK-GT8230 User Manual
Version: V2.0.0
Date: 2013-09-13

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Confidential Material
This document contains information highly confidential to Fibocom Wireless Inc. (Fibocom). Fibocom
offers this information as a service to its customers, to support application and engineering efforts that use
the products designed by Fibocom. The information provided is based upon requirements specifically
provided to Fibocom by the customers. All specifications supplied herein are subject to change.
Disclosure of this information to other parties is prohibited without the written consent of Fibocom.
Copyright
Copy, Reproduce, Distribute and/or Edit of this document or part of it as well as utilization of its contents
and communication thereof to others without express authorization are prohibited. Offenders will be held
liable for payment of damages. All rights created by patent grant or registration of a utility model or design
patent are reserved. Copyright ©2013 Fibocom Wireless Inc. All rights reserved.
Trademarks Notice
The FIBOCOM Logo is registered by Fibocom Wireless Inc. All other product or service names or logos
are the property of their respective owners. Copyright ©2013 Fibocom Wireless Inc. All rights reserved.
Revision History
Version Date Remarks
V1.0.0 2012-05-29 Initial Version
V1.0.1 2013-01-04 Update the doc`s name
V1.0.2 2013-01-30
1. Update EVK and product pictures .
2. Add some notes during using mini PCIe.
3. Add picture of handles socket connection.
4. Delete the button of POWER_ON and POWER_OFF.
V2.0.0 2013-09-13
Update the doc`s name.
Add adapter.

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Applicability Table
No. Type Note
1 H330 Concert with ADP-H330-xxx-yy
2 H350 Concert with ADP-H350-xxx-yy

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Contents
1 Preface....................................................................................................................................................................... 5
1.1 Scope...................................................................................................................................................... 5
1.2 Developer Board Structure.................................................................................................................. 5
1.3 Application Diagram.............................................................................................................................. 6
2 Function Description of EVB...................................................................................................................................7
2.1 Power Supply......................................................................................................................................... 7
2.1.1 Direct Power Supply..................................................................................................................7
2.1.2 Power Adaptor............................................................................................................................ 8
2.1.3 Power Supply Peripherals........................................................................................................ 8
2.2 UART1（COM）................................................................................................................................... 9
2.3 UART1（USB）.................................................................................................................................. 10
2.4 USB Interface.......................................................................................................................................11
2.5 UART2（COM）................................................................................................................................. 12
2.6 SIM Card Interface..............................................................................................................................12
2.7 Audio Interface.....................................................................................................................................13
2.7.1 Audio1........................................................................................................................................13
2.7.2 Audio2........................................................................................................................................14
2.7.3 Speaker..................................................................................................................................... 14
2.8 RESET Button..................................................................................................................................... 15
2.9 Test Point.............................................................................................................................................. 16
2.10 Default Jumper Switch..................................................................................................................... 18
3 Adapter Introduction............................................................................................................................................... 19
3.1 Adapter Overview................................................................................................................................19
3.2 Adapter Appearance........................................................................................................................... 19
3.3 Adapter Structure................................................................................................................................ 20
3.4 Adapter Operation...............................................................................................................................21
3.4.1 Work with GT8230...................................................................................................................21
3.4.2 Only Adapter.............................................................................................................................21
3.5 Adapter Installation............................................................................................................................. 22

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1 Preface
1.1 Scope
EVK-GT8230 is the developer board of Fibocom 3G module, it worked with corresponding adapter.
This Manual describes the developer board EVK-GT8230, ensures the users can quickly and
conveniently develop wireless communications using Fibocom Module.
1.2 Developer Board Structure
Figure 1-1 GT8230

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1.3 Application Diagram
GT8230 mainly includes the four parts:each functional interface, button, test point and power supply.
The diagram as listed below:
Figure 1-2 product diagram
Note ：the Reset button is only for Mini PCIe, for Adapter is useless.

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2 Function Description of EVB
This section describes the different functions of each block; take ADP-H330 (H330 Adapter) as an
example.
2.1 Power Supply
This developer board supports two kinds of power supply inputs.
(1) Direct Power Supply
Directly connected with V40BAT (pin JP3) and GND (Pin JP2) to 4V
Note: For mini PCIe, use DC3.3V power supply
(2) External PSU
Supply option can be connected through the DC-DC adapter, supplying 9V through (JP1), then
supply power to H330 Adapter through DC-DC conversion circuit on development board.
As shown in Figure 2-1：
Selection of Direct Power Supply, set the power selector switch (SWP1) to the left.
Selection of Power Adaptor, set the power selector switch (SWP1) to the Right.
Figure 2-1 Power Switch
2.1.1 Direct Power Supply
Direct Power Supply: The power supply is connected directly to the module, so the voltage range
must comply with the H330 Specifications.
Power Connector Description
V40BAT(JP3)
GND(JP2)
DC Power Supply
Voltage Range: 3.3 V ~ 4.2 V
Recommended Voltage: 4.0V
Input Current: > 2.0A

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Note：Please use correct Voltage to avoid damage.
2.1.2 Power Adaptor
When an external power adaptor is plugged in, the developer board will use a DC-DC Buck circuit to
convert to 4V supply and LV40 indicator will be ON.
Power Connector Description
Straight Insert Voltage Socket, Φ2.5mm;
Input Voltage: 8V~15V; Input Power: ≥9W.
2.1.3 Power Supply Peripherals
There are two LDO chips (UP2 and UP3) on the developer board. 3.3V voltage generated after
VBAT40 pass through UP2, 1.8V voltage generated after VDD33 pass through UP3, these two set of
voltages support other IC, LED and circuit on the developer board.
Jumper Switch Description
JP4 On/Off 3.3V voltage output
JP6 On/Off LED indicator
JM5 On/Off Enable LED Indicator for Power.
JM11
Select Power Supply for CODEC inside the module;
Jumper on Pin 1: VBAT connected with VSPK_M: power supplied by VBAT
Jumper on Pin 3: VDD33 connected with VSPK_M: power supplied by
VDD33
JM12
Supply power to VDD_MMC inside the module;
1V8 connected with VDD_MMC: power supplied by 1V8;
VDD33 connected with VDD_MMC: power supplied by VDD33
JA2
Supply power to CODEC on the developer board;
Jumper on Pin 1: VBAT connected with VSPK: power supplied by VBAT;
Jumper on Pin 3: VDD33 connected with VSPK: power supplied by VDD33
Note: When you test the parameter of current, please unplug the above six jumpers. The
tested current will be the current consumed by module only.

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Figure 2-2 Jumpers Locations
2.2 UART1（COM）
UART1 is a full 8-line interface, there are six LED indicators (LRI/LDCD/LDSR/ DTR/LRTS/LCTS),
used to display the corresponding pin logic level in the module, it can be directly connected to PC or other
DTE equipment.
Developer board contains RS-232 Transceiver SP3238EEA inside.
PC and other DTE equipment can test all the functions of the module through this interface and AT
Commands.
The following picture shows the connection of UART1:

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Jumper Switch
Description
JU7
All 9 Jumpers In, Turn ON UART1 Signal
connection
Figure 2-3 Jumpers Locations
Note: For mini PCIe, connect the mini USB cable to the high speed USB port of the developer
board, in the meantime, unplug jumper switch JP7, otherwise, this port cannot be used.
2.3 UART1（USB）
U ART1 (USB) connector and UART1 connector are using the same internal UART interface inside
the developer board, so they have the same functions and commands. The developer board contains a
UART to USB converter chip (PL2303), it provides four lines（TXD/RXD/CTS/RTS）to UART interface of
module after conversion, this USB connector is the mini USB connector, users can connect to the PC
through switching cable (USB transfer to mini USB).
There is a LED indicator（LUSB-UART）next to the USB interface, used to display the connection
between the interface and PC. If it is connected successfully, the light will on. The following picture shows
the connection of USB (UART1):USB
Jumper Switch Description
JU9 Turn on/off USB interface as communication interface