NT20-ST121-E OMRON Programmable Terminal
The NT20-ST121-E is a programmable terminal from OMRON, featuring
an STN monochrome display with a beige frame. It is designed for
industrial automation and control systems, offering a resolution of
256 × 128 dots and a maximum of 12 × 6 touch switches. This model
supports RS-232C and RS-422A communication interfaces, making it
versatile for various industrial applications.
The terminal is compatible with a wide range of operating systems,
including Windows 98, NT, 2000, Me, XP, Vista, and 7 (except for
the Windows XP 64-bit version). It also supports multiple
languages, including English and simplified Chinese.
The NT20-ST121-E has a rated power supply voltage of 24 VDC, with
an allowable range of 20.4 to 27.6 VDC. It consumes a maximum of 10
W and operates within an ambient temperature range of 0 to 50 °C,
with a storage temperature range of -20 to 70 °C.
Technical specifcations for NT20-ST121-E
Display Device: Monochrome STN LCD
Resolution: 140 (128) × 260 (256) dots
Effective Display Area: 66 (57.6) × 120 (115.2) mm
Display Mode: Blue
Service Life: Over 50,000 hours
Contrast Adjustment: Adjustable from the back of the terminal
Backlight: Service life over 50,000 hours, non-replaceable,
brightness not adjustable
Automatic Turn-OFF: Can be set to 10 minutes, 1 hour, or stay lit
Front Panel Indicator LED: RUN (Green: normal operation, Flashing
Green: during automatic transfer or error)
Operation Specifications
Touch Panel: Up to 72 registered switches per screen (12 × 6 grid)
Switch Size: 9.14 × 9.18 mm
Input Type: Pressure-sensitive
Operating Force: Less than 1 N
Service Life: Over 1,000,000 operations
External I/F Specifications
Serial Port A: EIA RS-232C, D-sub 9-pin connector (female), +5 V
(150 mA max.) output at pin No. 6
Serial Port B: EIA RS-232C, D-sub 9-pin connector (female), +5 V
(150 mA max.) output at pin No. 6
Expansion I/F: Dedicated connector
General Specifications
Rated Power Supply Voltage: 24 VDC
Allowable Voltage Range: 20.4 to 27.6 VDC (24 VDC -15%/+10%)
Power Consumption: Less than 10 W
Ambient Operating Temperature: 0 to 50 °C (with no condensation)
Storage Temperature: -20 to 70 °C
Ambient Operating Humidity: 35% to 85% (0 to 40 °C), 35% to 50% (40
to 50 °C) (with no condensation)
Storage Humidity: 35% to 85% (-20 to 40 °C), 35% to 50% (40 to 50
°C), 35% to 45% (50 to 70 °C) (with no condensation)
Degree of Protection: Front panel operating section equivalent to
IP65 oil-proof type and NEMA 4
Additional Information
Dimensions: 190 × 108 × 53.5 mm (W × H × D)
Panel Cutout Dimensions: 178.5 + 0.50 × 98.5 + 0.50 mm (horizontal
× vertical), panel thickness range: 1.6 to 4.8 mm
Weight: Less than 0.7 kg
Applicable Standards: UL 1604 Class 1 Division 2, EC Directives
More Products In Stock:
| NT20-ST121-E | SRT2-OD16-1 | C200H-OD217 | C200H-DA002 |
| 200H-OC226N | S8VK-G06024 | S8VS-12024 | NX-SID800 |
| CS1W-MC221-V1 | CP2E-S30DT1-D | CJ1W-OC211 | KN3M251000 |
Our Services:
1,All our products are new and orginal, and of good quality
2,Our prices are very competitive.
3, We have a large quantity in stock, so we could help the
customers to get the components which are dificult to get.
4,All inquiries will be valued and will reply in 24.
Packing & Delivery:
1,100% brand New and Original Factory Seal!
2,Warranty:1 year
3,Package: Original packing with cartons.
4,Delivery time: Shipped in 3-7 days after payment
5,All the goods will be tested before shipment
