Omron NT-series Operation Manual page 63

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Converter Unit Connector Specifications
Converter Unit Terminal Screws and Crimp Terminals
Note
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 272).
NT-AL001 RS-422A terminal block specifications

Connected terminal block RS-422A terminal block (M3 screws)

Electrical characteristics

Signal direction
Terminal
Block Pin Block Pin Signal Name Signal Name
No.
8 Request to send (
7 Request to send (
6 Receive data (
5 Receive data (
4 Send data (
3 Send data (
2 Signal ground
1 Functional ground
* The CSA and CSB signals are for special applications.
The terminal screws are M3 screws. Use M3 size crimp terminals. Tighten the ter-
minal screws with a torque of 0.5 N·m.
During wiring, crimp terminals must be used for connections.
[Recommended crimp terminals]
Fork Type
6.2mm or less
Maker
Japan Solderless
1.25-N3A (Fork)
Terminal MFG
Molex Y1.25-3.5L (Fork)
Conform to EIA RS-422A
Signal input and output is relative to the NT-AL001.
Abbreviation Abbreviation

) CSA

) CSB

) RDA

) RDB

) SDA

) SDB
SG (GND)
Round Type
6.2mm or less
Type
Section 2-6
Signal Direction
Input Output




Recommended Wire Size
AWG22 to 18 (0.3 to 0.75mm AWG22 to 18 (0.3 to 0.75mm






2 2
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