© Microhard Systems Inc.
25
3.0 Hardware Features
Drawing 3-4: pX2 80-pin OEM Connection Info
3.1.5 Pico OEM Pin Descriptions
The above drawing depicts a top view of the pX2 OEM Module. The corner pads (1, 25, 41,
and 65) are printed directly on the bottom of the PCB for easy identification.
A full description of the connections and function of each pin is provided on the pages that
follow.
Inputs and outputs are
3.3V nominal (3.0V min
—
3.6V max) unless
otherwise specified.
G
N
D
VRF
VRF
Vcc
Vcc
ETH0 LINK_LED (LAN)
NC
RX_P0 (LAN)
RX_N0 (LAN)
TX_N0 (LAN)
TX_P0 (LAN)
NC
NC
NC
pX2
(Top View)
NC
NC
1
GND
DNC
DNC
DNC
DNC
DNC
NC
NC
NC
NC
CPU STATUS LED
NC
ETH_BIAS
USB_MODE
CONFIG
RESET
GND
USBA_DP
USBA_DM
RSSI LED1
RSSI LED2
RSSI LED3
ETH4 LINK_LED (WAN)
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
LED RX
LED TX
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
NC
NC
NC
NC
TX_P4 (WAN)
TX_N4 (WAN)
RX_P4 (WAN)
RX_N4 (WAN)
G
ND
G
ND
NC
S
er
ia
l Rx
D
S
eri
al
T
xD
S
er
ia
l DS
R
S
er
ia
l CT
S
S
er
ia
l DT
R
NC
S
er
ia
l RT
S
NC
NC
NC
NC
G
ND
G
ND
