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Appendices
A-4-5
Method for fabricating the cable for connection to PC
When fabricating the cable for connecting with NB-Designer, refer to the following methods:
Depending on the type of the RS-232C connector compatible with PCs according to DOS/V, deploy the
wiring as shown below:
25-pin Connector
NB Unit side
COM1 (female)
at the NB Unit side Signal Name Pin No.
1
5
Shielded Cable
DB25 Serial Port at the PC side
Pin No. Signal Name
RS232 DB25 (male)
at the PC side
FG
Connector
Shield
Connector
Shield
FG
13
25
9
NC
SD
RD
RS (RTS)
CS (CTS)
DC+5V
NC
NC
SG
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
20
22
FG
SD
RD
RS
CS
DR
SG
CD
ER
RI
14
1
A-4 Fabrication of the Connection Cable
6
9-pin Connector
NB Unit side
COM1 (female)
at the NB Unit side Signal Name Pin No.
1
RS232 DB9 (male)
at the PC side
Connector
Shield
FG
5
9
1
2
3
4
5
6
7
8
9
CD
RD
SD
ER
SG
DR
RS
CS
RI
1
6
Note As to the 2 connection methods introduced above, the No.2, 3 and 9 pins of COM1 on the NB3Q unit side
have the same definitions as those described in the above diagram, and the method for connection to a PC
is also the same as above.
NB-series Programmable Terminals Setup Manual(V107)
A-13
A-4-5 Method for fabricating the cable for
connection to PC
9
Connector
Shield
NC
1
SD
2
RD
3
RS (RTS)
4
5
CS (CTS)
DC+5V
6
7
NC
8
NC
9
SG
FG
DB9 Serial Port at the PC side
Pin No. Signal Name
App
5
6
Shielded Cable