Casio QT-6100 Service Manual

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[ 17 ] RS232C PORT batch test
[Function]
This is the RS232C port batch test.
The loop back test for RS232C port is performed by making the connection shown in the figure.
The loop back test is performed from COM1 to COM 3 by the following setting by one time
check.
When performing this test, fix loop back connectors to all COM ports.
[Operation]
Operation : 4 0 ST
Baud rate: COM1: 115 kbps, COM 2 - 6 : 9600 bps
Check time: one time
[LCD]
COM BATCH 40
RTS1=1
 CTS1=1 OK
DTR1=1
 DSR1=1 OK
DTR1=1
 CD1=1 OK
DTR1=1
 CI1=1 OK
RTS1=0
 CTS1=0 OK
DTR1=0
 DSR1=0 OK
DTR1=0
 CD1=0 OK
DTR1=0
 CI1=0 OK
TxD
 RxD OK
RTS2=1  CTS2=1 OK
DTR2=1  DSR2=1 OK
DTR2=0  CD2=0 OK
DTR2=0
 CI2=0 OK
TxD
 RxD OK
·
·
·
END 40
COM 1 test result
COM 2 test result
T x D
R x D
C T
S
R T
S
D T R
DSR
C D
C I
T x D
R x D
C T
S
R T
S
D T R
DSR
COM1 COM2~COM3
∗ ∗
∗
∗
: output “1”  “0” from the output terminal and checks the input terminal.
∗
Figure : RS232C port connection
The same display for COM2 appears for COM3.
Note that the actual display shows only a part of the results (not the whole as shown in the left).

Casio QT-6100 Specifications

General

Brand	Casio
Model	QT-6100
Category	Cash Register
Language	English