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2.3. Evaluation Board
To help you develop applications conveniently with RM502Q-GL, Quectel supplies an evaluation board
(PCIe Card EVB), a USB to RS-232 converter cable, a USB type-B cable, antennas and other peripherals
to control or test the module. For more details, see document [3].
2.4. Functional Diagram
The following figure shows the functional diagram of RM502Q-GL.
⚫
Power management
⚫
Baseband
⚫
LPDDR4X SDRAM + NAND Flash
⚫
Radio frequency
⚫
M.2 Key-B interface
VCC
GND
FULL_CARD_POWER_OFF#
RESET#
(U)SIM2
(U)SIM1
USB 2.0 & USB 3.1
PCIe 3.0
×
1
RFFE
GPIOs
WWAN_LED#
WAKE_ON_WAN#
W_DISABLE1#
W_DISABLE2#
RM502Q-GL_Hardware_Design
PMIC
38.4MHz XO
MCP
NAND 4Gb x 8
Clock IC
LPDDR4X 4Gb x 16
Baseband
Control
Figure 1: Functional Diagram
RM502Q-GL Hardware Design
Tx
PRx
Qlink
DRx
5G Module Series
ANT3
ANT2_GNSSL1
ANT1
ANT0
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