Metal Keypad
KY-3115A Mechanical Key Numeric Keypad With RS485 Output
KY-3115A is an embedded numeric keypad using mechanical switch buttons with ABS key caps on a SUS304 brushed stainless steel panel.
Product Overview
KY-3115A is an embedded numeric keypad using mechanical switch buttons with ABS key caps on a SUS304 brushed stainless steel panel. The 4mm key travel gives a clear mechanical feel that operators can confirm without looking, and the standard output is RS485 for long cable runs. The panel measures 115*115 mm.
- Mechanical switch buttons with 4mm key trip give unmistakable tactile confirmation
- RS485 interface supports long cable runs back to a controller
- ABS key caps can be changed by the user to alter printed content
- Light 1N+/-0.1N key force reduces operator fatigue on repeated entry
- 115*115 mm square panel simplifies fascia machining
- USB, PS2 and RS232 interfaces can be customized instead of RS485
Application Scenarios
- Financial equipment needing confirmed key entry
- Communication equipment with remote mounted controllers
- Military equipment consoles requiring tactile keys
- Self-service terminals with RS485 field wiring
- Machine control panels where operators cannot watch the keypad
Who It Is For
- Machine builders using RS485 field buses
- Financial equipment OEMs
- Self-service terminal manufacturers
- Defence and industrial console integrators
Problems It Solves
- Short travel keys give no confirmation when operators wear gloves
- USB cable length limits keypad placement away from the controller
- Fixed printed legends cannot be updated after installation
- Heavy key force slows repeated numeric entry
Technical Features
- 16 mechanical keys on an embedded 115*115 mm panel
- ABS key caps with user changeable silk-screen content
- Key size 18*18*8mm with key trip 4mm
- Key force 1N+/-0.1N contact force
- Product interface RS485 with USB, PS2 and RS232 customizable
- Power supply 5V plus or minus 5 percent, working current under 150mA
- Durability of more than 2 million operations
Specifications
| Keys | 16 |
|---|---|
| Front panel | 115*115 mm |
| Overall | 115*115 mm |
| Power supply | 5V±5% |
| Working current | <150mA |
| Durability | >2 million |
| Product interface | RS485 (USB, PS2, RS232 customizable) |
| Key size | 18*18*8mm |
| Key trip | 4mm |
| Key force | 1N+/-0.1N (Contact force) |
| Net weight | 0.7Kg |
| Gross weight | 0.85Kg |
Materials
- SUS304 brushed stainless steel panel
- ABS key caps
- Mechanical switch modules
Manufacturing Process
- Blanking of the 115*115 mm stainless panel
- CNC machining of the 16 mechanical switch apertures
- Brushing of the panel face
- Mechanical switch mounting and ABS key cap fitting
- RS485 wiring, addressing and top to bottom assembly
Quality Control
- Each mechanical switch actuated and logged on the RS485 line
- Key travel verified against the 4mm figure
- Key force sampled to 1N+/-0.1N
- Key cap seating and legend orientation checked before packing
Customisation Options
- Interface changed to USB, PS2 or RS232 instead of RS485
- Key cap silk-screen content set to your requirement
- User replaceable caps so content can be changed later
- Panel fixing pattern matched to your fascia
- Cable length and terminal type for the RS485 run
How It Compares
| Short travel metal membrane keypads | KY-3115A uses mechanical switches with 4mm travel instead of a 0.45mm short trip action. |
|---|---|
| USB only keypads | The standard RS485 output allows the controller to sit well away from the panel. |
| Etched stainless key tops | ABS key caps can be relabelled by the user after installation. |
Use Guide
- Cut a 115*115 mm aperture and assemble the keypad from top to bottom
- Terminate the RS485 pair and set the addressing required by your controller
- Supply 5V ± 5% and confirm all 16 keys report
- Change key cap content on site by removing and reprinting the ABS caps
- Operate within -10℃~45℃ ambient
Questions About This Model
How many keys does KY-3115A have?
It is a mechanical key numeric keypad with a total of 16 keys.
What interface is standard?
RS485 is standard, and USB, PS2 or RS232 can be customized.
What is the key travel?
Key trip is 4mm with a key size of 18*18*8mm.
Can the key printing be changed after delivery?
Yes. The content of the button silk-screen printing can be changed by yourself on the ABS key caps.
What is the panel size?
Front panel and overall size are both 115*115 mm.
How much does it weigh?
Net weight is 0.7Kg and gross weight is 0.85Kg.
Request A Quote On KY-3115A
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