Omron NT21 Setup Manual

2-1SectionMethod for Connection to the Host
11
Combinations of Communication Method and Connection Method
The connection methods that can be used depending on the communication
method used and the communications type for communication between the
NT21 and the host are indicated in the table below.
Communication
Usable Communication
Method
C
ommun
i
cat
i
on
type at Host
Usable Connection Method
Host
Link
1:1 NT
Link
1:N
NT
Link
Memory
link
Details
RS-232C
Direct 1:1 connection
PT
Host
RS-232C
(max. 15 m)
f f f f 63
RS-232C
1:N connection with RS-422A through Link Adapters
PT
Host
NT-AL001
Link Adapter
RS-422A
(total length 500 m)
RS-232C
(max. 2 m)
NT-AL001* or
NS-AL002
Link Adapter
f 95
RS-232C
1:N connection with RS-485 through Link Adapters
PT
Host
RS-485
(total
length 500 m)
RS232C
(max. 2 m)
NT-AL001
Link Adapter
NT-AL001* or
NS-AL002
Link Adapter
f 95
f: Connection possible : Connection not possible
Note *An RS-232C Cable (not shown in the diagram) is required when connecting an
NT-AL001 Link Adapter to a PT.

Omron NT21 Specifications

General

Brand	Omron
Model	NT21
Category	Touch terminals
Language	English