![background image](http://html.mh-extra.com/html/omron/nt20s/nt20s_operation-manual_744540070.webp)
51
Connection to a PC by the NT Link (1:N)
Section 2-6
Converter Unit Connector Specifications
The terminal block specifications of the RS-232C/RS-422A converter unit are indi-
cated here. For details on the method for making the connection cable, refer to
“Making the Cable” (page 265).
NT-AL001 RS-422A terminal block specifications
S
Connected terminal block RS-422A terminal block (M3 screws)
S
Electrical characteristics
Conform to EIA RS-422A
S
Signal direction
Signal input and output is relative to the NT-AL001.
Terminal
Block Pin
Signal Name
Abbreviation
Signal Direction
Block Pin
No.
Signal Name
Abbreviation
Input
Output
8
Request to send (
*
)
CSA
Ę
7
Request to send (
)
)
CSB
Ę
6
Receive data (
*
)
RDA
Ę
5
Receive data (
)
)
RDB
Ę
4
Send data (
*
)
SDA
Ę
3
Send data (
)
)
SDB
Ę
2
Signal ground
SG (GND)
*
*
1
Functional ground
*
*
The CSA and CSB signals are for special applications.
Terminal Screws and Crimp Terminals
The terminal screws are M3 screws. Use M3 size crimp terminals. Tighten the ter-
minal screws with a torque of 0.4 N·m.
Note:
During wiring, crimp terminals must be used for connections.
[Recommended crimp terminals]
Fork Type
Round Type
6.2mm or less
6.2mm or less
Maker
Type
Recommended Wire Size
Japan Solderless
Terminal MFG
1.25-N3A (Fork)
AWG22 to 18 (0.3 to 0.75mm
2
)
Molex
Y1.25-3.5L (Fork)
AWG22 to 18 (0.3 to 0.75mm
2
)
Содержание NT20S
Страница 1: ...Cat No V020 E1 04 NT20S Programmable Terminal OPERATION MANUAL ...
Страница 2: ...i ...
Страница 3: ...ii ...
Страница 4: ...iii NT series Programmable Terminal Operation Manual Revised August 1997 ...
Страница 5: ...iv ...
Страница 7: ...vi ...
Страница 11: ...x ...
Страница 19: ...xviii ...
Страница 129: ...110 ...
Страница 169: ...150 ...
Страница 253: ...234 ...