Test Points - Digi Connect EM DC-EM02T-JT Hardware Reference Manual

About the development board

Test points

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.
Digi Connect EM and Digi Connect Wi-EM Hardware Reference
Test point descriptions
Test point Board label
TP2 TXD
TP3 RXD
TP4 CTS
TP5 DTR
TP6 TXD
TP7 RXD
TP8 RTS
TP9 DCD
TP10 DSR
TP11 IO-1
TP12 IO-2
TP13 IO-3
TP14 IO-4
TP15 IO-5
TP17 3.3V
TP20 RESET
TP21 E+
TP22 E-
TP23 V-IN
TP24 GND
TP25 GND
TP26 IO-8
TP27 IO-7
TP28 IO-6
TP29 IO-9
Description
TXD-2
RXD-2
CTS
DTR
TXD-1
RXD-1
RTS
DCD
DSR
GPIO-1
GPIO-2
GPIO-3
GPIO-4
GPIO-5
3.3V Supply
Reset (active low)
Ethernet Power +
Ethernet Power -
9-30 VDC Input
Ground
Ground
GPIO-8
GPIO-7
GPIO-6
GPIO-9
Test points
29