Datasheet

DIY IOT Electronics and Solutions
IOT-BOTS.COM LLC IBT-QTC-BG9X-AMC-DS Rev. 1.1 15
I2C SCL : SO18 Closed;
UID NVM chip Address
To change I2C BUS address of UID NVM chip installed these jumpers setting should
be done:
“0xA4” : SC5 Closed / SO16 Open (Default settings);
“0xA6” : SC5 Open / SO16 Closed;
Network LED
To get Network LED Enabled or Disabled these jumpers setting should be done:
LED Enabled : SC7 Closed (Default settings);
LED Disabled : SC7 Open.
Test Points
qTop BG9x LTE GNSS AMC Shield has numerous amounts of test points to check
device functionality. All of them are listed in Table 3 below.
Table 3
№№
Name
Description
Voltage
Range
Functional area
1
TP1
GSM_TXD
0…3,3V
GSM UART
2
TP2
GSM_RXD
0…3,3V
GSM UART
3
TP3
GSM_RTS
0…3,3V
GSM UART
4
TP4
GSM_CTS
0…3,3V
GSM UART
5
TP5
GSM_DTR
0…3,3V
GSM UART
6
TP6
GSM_DCD
0…3,3V
GSM UART
7
TP7
GSM_RI
0…3,3V
GSM UART
8
TP8
GSM_STATUS
0…3,3V
GSM UART
9
TP9
USB_VBUS
0…
5
V
Modem USB
10
TP10
USB_
DP
USB IO
Modem USB
1
1
TP11
USB_
DN
USB IO
Modem USB
1
2
TP12
USB_
BOOT
0…
1
,
8
V
Modem FW Upgrade
1
3
TP13
GND
0
V
GSM UART
14
TP14
DEBUG_UART_TXD
0…
1
,
8
V
DEBUG
UART
15
TP15
DEBUG_UART_RXD
0…
1
,
8
V
DEBUG
UART