2. Hardware specifications

1) External interface specifications

For the model AJ-D750

(1) Connector specifications
Connector: D-SUB 25-pin (crossover cable supported)
Pin No. Signal Circuit name Description
1
FG
Protective ground Frame ground
2RXD
Received data Data is sent to PC.
3
TXD
Transmitted data
Data is received from PC.
4
CTS
Clear to send Shorted with pin 5.
5RTS
Request to send Shorted with pin 4.
6
DTR Data terminal ready No processing
7
SG
Signal ground Signal ground
20 DSR Data set ready
+ voltage output after communication enable status
(2) Example of connection with controller (PC)
(Using crossover cable with D-SUB 25-pin connectors)
PC side
(D-SUB 25-pin connector) VTR side
(Using crossover cable with D-SUB 9-pin and 25-pin connectors)
PC side
(D-SUB 9-pin connector)
VTR side
–E-5–