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Programmable USB 20x4 character LCD module, six button keypad PLCD-525

Programmable USB 20x2 character LCD module, four button keypad PLCD-35 ( /

5.25" Programmable USB 20x4 character LCD module, six button keypad

This Multi-function programmable LCD display module that allows system builders to provide customized features for their clientele.

These features include a custom corporate or product logo, ID or model number, IP address, Watchdog timer, system status, etc.



5.25" Open Bay Bracket

USB Cable

LCD Program Control Board PLCD-525 on IPC-1211M 1U Case Application



  • LED backlit 20x4 LCD

  • Integrated LED backlit 6-button translucent silicon keypad with screened legend

  • Four bicolor (red + green) LEDs. The LEDs’ brightness can controlled by the host software, which allows mixing the LEDs to produce other colors (yellow and orange)

  • Current shipping hardware: v1.2

  • Current shipping firmware: u2.0

  • Three color options:

  • Yellow-green backlit positive mode LCD, yellow/green keypad backlight ("YYE")

  • White backlit negative mode LCD, blue keypad backlight ("TMF")

  • White backlit postive mode LCD, white keypad backlight ("TFE")

  • Fully decoded keypad: any key combination is valid and unique

  • LCD characters are contiguous in both X and Y directions to allow the host software to display "gapless" bar graphs in horizontal or vertical directions

  • USB interface for both power and data (115200 baud equivalent throughput)

  • Robust packet based communications protocol with 16-bit CRC

  • Compact size: fits in a 1U rack mount case (37mm overall height)

  • ATX power supply control functionality allows the buttons on the PLCD525 to replace the "power" and "reset" buttons on your system, simplifying your front panel design

  • Built-in factory re-programmable microcontroller

  • 5.25" half-height drive-bay mounting bracket available (optional)

  • Non-volatile memory capability ("EEPROM"):

  • Customize the "power-on" display and LED settings

  • 16-byte "scratch" register for storing IP, netmask, system serial number

Physical Characteristics

Characters x Lines 20 x 4
Module Overall
  width height depth
millimeters 142 37 20.8
inches 5.59 1.45 0.81
PCB Outline
  width height depth
millimeters 142 37 20.8
inches 5.59 1.45 0.81
Other Features Affecting Size
  • Keypad
Please see the datasheet
Viewing Area
  width height
millimeters 82.95 27.5
inches 3.26 1.08
Active Area
  width height
millimeters 77.95 22.35
inches 3.06 0.87
Character Size
  width height
millimeters 3.2 4.85
inches 0.12 0.19
Character Pitch
  width height
millimeters 3.55 5.95
inches 0.13 0.23
Dot Size
  width height
millimeters 0.6 0.65
inches 0.02 0.02
Dot Pitch
  width height
millimeters 0.65 0.7
Weight 66g
Keystroke Travel 2.4mm

Optical Characteristics

Display Technology LCD
Display Addressing passive
Glass Type/Glass Color STN/Blue
Polarizer Transmissive
View Direction 12
Backlight Color White
Backlight Type LED
Mode Negative
Foreground Color White
Background Color Blue


Operating Temperatures
  min max
Celsius 50°
Farenheit 32° 122°
Storage Temperatures
  min max
Celsius -10° 60°
Farenheit 14° 140°
  min max
Non-condensing 0% 90%


Controller CFA 631/635/735
Interface USB


User Manual

Enjoy FREE S/H for most of our accessories !!!

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Availability: Usually ships the same business day

Tariff RecoveryFee: 
Reasons To Shop P


Reasons To Shop P-Link Online

Factory Direct Support - Container importer, guarantee lowest price in the market.

Top Service - Reply any inquiry immediately.

Flexible Order System: You can either order online or just give us a mail, both ways are welcomed.

Fast Shipping - We use FedEx UPS w/ tracking number.
Warranty -
All parts carry 1 year parts and labor warranty from P-Link.

Privacy - P-Link Computers reserves the right to refuse any sale

P-Link Computers, Corp.

1142 S. Diamond Bar Blvd. #198,
Diamond Bar, CA 91765
Phone: (909) 861-9602
Fax: (909) 494-9557

Reseller  Welcome