Read Sharp ER-A490 (serv.man4) Service Manual online
2. Connection between the terminal and
MODEM
SD : TRANSMITTED DATA
RD : RECEIVED DATA
DTR : DATA TERMINAL READY
DSR : DATA SET READY
RTS : REQUEST TO SEND
DCD: DATA CARRIER DETECTOR
CTS : CLEAR TO SEND
CI
RD : RECEIVED DATA
DTR : DATA TERMINAL READY
DSR : DATA SET READY
RTS : REQUEST TO SEND
DCD: DATA CARRIER DETECTOR
CTS : CLEAR TO SEND
CI
: CALLING INDICATOR
FG : FRAME GROUND
3. Connection between the ECR and
Kitchen printer: ER-02RP
Wiring diagram
[Kitchen printer (ER-02RP)]
SD
: TRANSMITTED DATA
RD
: RECEIVED DATA
SG
: SIGNAL GROUND
PE
: PATER END
FAULT : MOTOR LOCK
BUSY
BUSY
: BUSY
DCD
: DATA CARRIER DETECTOR
DSR
: DATA SET READY
CTS
: CLEAR TO SEND
FG
: FRAME GROUND
SD
SD
RD
SG
RD
3
2
4
6
7
1
8
5
2
3
20
6
4
8
5
7
RTS
DCD
DTR
DSR
CTS
CI
22
9
SG
RTS
DCD
DTR
DSR
CTS
CI
FG
1
FRAME GROUND is connected
to the shield of the cable.
to the shield of the cable.
MODEM
TERMINAL
25PIN D-SUB
9PIN D-SUB
SD
2
DCD
R D
FG
R D
3
20
1
1
2
8
KITCHEN PRINTER: ER-02RP
SG
7
PE
10
FAULT
12
BUSY
3
5
6
ECR
SD
SG
DSR
CTS
25PIN D-SUB
9PIN D-SUB
FRAME GROUND is connected
to the shield of the cable.
to the shield of the cable.
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