Modem System - Casio QT-2000 Service Manual

2. MODEM system

2-1. Connection layout
nals.
PC
on-line
MAX : 15 m
QT2000-1
R/J
Use Com2 or
Com3 port
2-2. Cable wiring
QT-2000 (Com2)
Pin No. Signal name
3 SD/ TXD
2 RD / RXD
7 RS / RTS
8 CS / CTS
1 CD / DCD
4 ER / DTR
6 DR / DSR
9 CI / RI
5 GND
QT-2000 (Com3)
Pin No. Signal name
3 SD/ TXD
2 RD / RXD
7 RS / RTS
8 CS / CTS
1 CD / DCD
4 ER / DTR
6 DR / DSR
9 CI / RI
5 GND
Note: When the cluster has more than 8 QT-2000 terminals,
all printer should be local printer.
When the cluster has less than or equal to 8 QT-2000
terminals, remote printer is allowable.
QT2000-2 QT2000-3
R/J
— 43 —
QT2000-32
R/J R/J
MODEM (DSUB25)
Pin No. Signal name
2 SD
3 RD
4 RS
5 CS
8 CD
20 ER
6 DR
22 CI
7 GND
MODEM (DSUB25)
Pin No. Signal name
2 SD
3 RD
4 RS
5 CS
8 CD
20 ER
6 DR
22 CI
7 GND