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1
6
9
5
Appendix G
Method for Making the Cable for Connection to the PC
303
S
Wiring connections
The NT620S/620C does not use pin 4 (RS) or pin 5 (CS). Either short the RS and CS pins of the PC connector
together or set the CTS setting selector switch at the rear face of the host link unit to “0V” (see
<
in the figure).
Connect the cable shielding wire to the connector cover and pin 1 at the host link unit end of the cable only.
1
2
3
4
5
6
7
8
9
Pin
number
Abbreviation
FG
SD
RD
RS
CS
–
–
SG
RS-232C
interface
RS-232C
interface
Pin
number
Abbreviation
1
2
3
4
5
6
7
8
–
FG
SD
RD
RS
CS
–
SG
–
–
Shielding
wire
25-pin
connector
NT620S/620C
PC (host link unit)
–
–
–
ER
–
–
–
20
+5V
<
Connecting an NT620S/620C to a C-Series CPU (C
jj
H)
S
C-series CPU unit (C
jj
H) 9-pin connector specifications
- Applicable CPU:
C20H/C28H/C40H/C60H
- Electrical characteristics:
Complies with EIA RS-232C
- Signal direction:
Signal input and output is relative to the PC.
Connector
Pin No
Signal Name
Abbreviation
Signal
Direction
Pin No.
Signal Name
Abbreviation
Input
Output
1
Frame ground
FG
–
–
2
Send data
SD (TXD)
f
3
Receive data
RD (RXD)
f
4
Request to send
RS (RTS)
f
5
Clear to send
CS (CTS)
f
7
Signal ground
SG (GND)
–
–
Содержание NT620C
Страница 1: ...Cat No V033 E1 5 Programmable Terminals NT620S 620C OPERATION MANUAL...
Страница 2: ...NT620S 620C Programmable Terminals Operation Manual Revised April 2001...
Страница 3: ...iv...
Страница 5: ...vi...
Страница 326: ...Appendix K Option List 325 Battery 3G2A9 BAT08 This is a lithium battery used for memory backup...
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