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Assign a Terminal Order from 1 to 10, starting with Power. Power should be Terminal Order 1, and Ground should be last, Terminal Order 10. For Orientation, set Power to "Top" and Ground to "Bottom." For the remaining sections/groups, you may decide the Terminal Order and Orientation yourself. For Orientation, distribute them between "Left" and "Right" — don't put everything on one side. Each group/section should have a different orientation.
I’ll assign each functional group a consistent Terminal Order and Pin Orientation, with Power at order 1/top and Ground at order 10/bottom, then verify the metadata.
Assigned Terminal Order and Pin Orientation across all terminal pins.
Mapping used:
  • 1 Top: Power Supply
  • 2 Left: Control
  • 3 Right: Status
  • 4 Left: USB
  • 5 Right: UART
  • 6 Left: USIM
  • 7 Right: ADC / I2C / PCM
  • 8 Left: SGMII
  • 9 Left/Right: SD Card, Wireless, Antenna, Reserved
  • 10 Bottom: Ground
Verified Power Supply is order 1/top and Ground is order 10/bottom.
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Name
Pin #
Type
Part Type
Pin Group
Pin Orientation
Section
Terminal Order
WAKEUP_IN
1
Input
Terminal
Control
Left
Control
2
AP_READY
2
Input
Terminal
Control
Left
Control
2
RESERVED
3
Reserved
Terminal
Reserved
Left
Reserved
9
W_DISABLE#
4
Input
Terminal
Control
Left
Control
2
NET_MODE
5
Output
Terminal
Status
Right
Status
3
NET_STATUS
6
Output
Terminal
Status
Right
Status
3
VDD_EXT
7
Power Out
Terminal
Power Supply
Top
Power Supply
1
GND
8
Ground
Terminal
Ground
Bottom
Ground
10
GND
9
Ground
Terminal
Ground
Bottom
Ground
10
USIM_GND
10
Ground
Terminal
USIM
Left
USIM
6
DBG_RXD
11
Input
Terminal
UART
Right
UART
5
DBG_TXD
12
Output
Terminal
UART
Right
UART
5
USIM_PRESENCE
13
Input
Terminal
USIM
Left
USIM
6
USIM_VDD
14
Power Out
Terminal
USIM
Left
USIM
6
USIM_DATA
15
Bi-Directional
Terminal
USIM
Left
USIM
6
USIM_CLK
16
Output
Terminal
USIM
Left
USIM
6
USIM_RST
17
Output
Terminal
USIM
Left
USIM
6
RESERVED
18
Reserved
Terminal
Reserved
Left
Reserved
9

EC21AUVFA512STD

EC21AUVFA512STD thumbnail