Test Points - Digi Connect EM Hardware Reference Manual

T e s t P o i n t s

Test Points

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Board
Description
Label
CR21 EPWR, Powered Ethernet Enabled
The development board provides 25 test points that can be identified by board label or test
point number. The board labels are adjacent to each test point on the board. The test point
numbers are in the development board schematic drawings. The following table lists the
test point number, board label, and a brief description of each test point.
Point
D i g i C o n n e c t E M & W i - E M H a r d w a r e R e f e r e n c e
LED Descriptions
Color or State
On
Off
Test Point Descriptions
Test Board
Description
Label
TP2 TXD
TP3 RXD
TP4 CTS
TP5 DTR
TP6 TXD
TP7 RXD
TP8 RTS
TP9 DCD
TP10 DSR
Indication
Ethernet power present
from external powered
Ethernet connector
(Ethernet hub or switch)
No powered Ethernet
voltage
TXD-2
RXD-2
CTS
DTR
TXD-1
RXD-1
RTS
DCD
DSR