Casio TE-2400 Service Manual

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[ 24 ] COM (RS232C) 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.
When performing this test, fix loop back connectors to all COM ports.
[Operation]
Operation : 4 0 SUBTOTAL
Baud rate: COM1: 19.2kbps, COM 2 : 9600 bps
Check time: one time (stable)
[Print]
COM BATCH 4 0
RTS1=1 ––> CTS1=0 OK
DTR1=1 ––> DSR1=0 OK
DTR1=1 ––> CD1=0 OK
DTR1=1 ––> CI 1=0 OK
RTS1=0 ––> CTS1=0 OK
DTR1=0 ––> DSR1=0 OK
DTR1=0 ––> CD1=0 OK
DTR1=0 ––> CI 1=0 OK
TxD ––> RxD OK
RTS2=1 ––> CTS2=0 OK
DTR2=1 ––> DSR2=0 OK
RTS2=0 ––> CTS2=0 OK
DTR2=0 ––> DSR2=0 OK
TxD ––> RxD OK
END 40
COM 1 test result
COM 2 test result
Figure : RS232C port connection
outputs "1"  "0" from the output terminal and checks the input terminal.
TxD
RxD
CTS
RTS
DTR
DSR
CD
CI
TxD
RxD
CTS
RTS
DTR
DSR
COM1 COM2

Casio TE-2400 Specifications

General

Types of payment	Cash
Supported paper width	58 mm
Display digits	10 digits
Second display	Yes
Second display type	LED
Display number of characters	16
Power source	AC
AC input voltage	120-230 V
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 85 %

Weight and Dimensions

Depth	450 mm
Width	400 mm
Height	277 mm
Weight	12000 g