![background image](http://html1.mh-extra.com/html/omron/nt20m-series/nt20m-series_operation-manual_743774017.webp)
9
Bottom
Extended I/O Unit Connector
(NT20M-DN
jjj
only)
Remove seal when connecting
a 12-key Function Key Unit.
Components under Drip-Proof Cover
NT20M-D
j
121-V2
The illustration below is for the NT20M-D
j
121-V2. The NT20M-D
j
13
j
is
basically similar except for the contrast control being in a slightly different
position.
Reset Switch
Pressing this switch initializes
the NT20M. The status of
screen data before initializa-
tion is retained.
Peripheral Device Connector
Used to transfer screen data
between the Support Tool and
the NT20M.
Contrast Control
Adjusts display contrast.
Turning clockwise increases contrast.
Note
When adjusting the contrast,
use the screwdriver included
with the drip-proof cover.
Rear Panel
Lithium Battery Cover
The lithium battery is
under this cover.
Cover for 8-position DIP switch for system settings
Slide switch for memory
settings (SW2)
Socket with lever, for installing
image data memory
Connector for Host Interface Unit
Terminal block cover
(Refer to 2-5 Wiring and Connectors)
Socket for mounting System ROM
(NT20M-SMR
jj
)
Nomenclature and Functions
Section 1-7
Содержание NT20M series
Страница 1: ...Cat No V001 E1 2 Programmable Terminal NT20M NT2000M...
Страница 2: ...NT20M NT2000M Programmable Terminal Operation Manual Revised September 1993...
Страница 3: ...iv...
Страница 5: ...vi...