C-more Micro EA-MG6-BZ2 Hardware User Manual - 5–16
Test Menu – Serial Port2 - Loop Back Test
With Serial Port2 -
Loop Back Test
highlighted, press
ENT [F5] to bring
up the screen shown
to the right. At this
point, either connect
the RS-232 loop
back connector or
the RS-422/485 loop
backconnector,
depending on which
type of
communications
connection is being
used, and press ENT
[F5] to start the test.
If the test is passing,
the Receive Counts
will equal the Bytes
Sent. If the serial
port is not working,
then the Error
Counts will equal the
Bytes Sent. The
RTS/CTS signals
will also show either
pass or fail as shown
to the right. The test
will continue until
the BAK [F1] key is
pressed.
1
15
15-pin D-sub
(male)
2
3
TXD
RXD
7
8
CTS
RTS
RS-232 Loop-back Connector
Wiring Diagram
1
15
15-pin D-sub
(male)
7
8
CTS
RTS
9
11
RXD+
TXD+
10
12
RXD
TXD
RS-422/485 Loop-back Connector
Wiring Diagram
BAK
UP
DWN
ENT
ESC
LOOP BACK TEST
Serial Port2
Bytes Sent 124
Rcv Counts 124
Err Counts 0
RTS/CTS pass
BAK
UP
DWN
ENT
ENT
TEST MENU
1 Serial Port1 Loop Back
2
k
3
4
5
Use Loop Back
Connector and
Press ENT
BAK
UP
DWN
ENT
ESC
LOOP BACK TEST
Serial Port2
Bytes Sent 124
Rcv Counts 124
Err Counts 0
RTS/CTS pass
BAK
UP
DWN
ENT
ESC
LOOP BACK TEST
Serial Port2
Bytes Sent 124
Rcv Counts 0
Err Counts 124
RTS/CTS fail
®
5
Chapter 5: System Setup Screens
5–16
EA1-MG6-USER-M Hardware User Manual, 1st Ed. Rev C, 09/10