4200-003 Storm Interface, 4200-003 Datasheet - Page 3

• Manufacturer Part Number: 4200-003
• Description: ENCODER UNIVERSAL FOR KEYPADS
• Manufacturer: Storm Interface

Specifications of 4200-003

• Overall Dimensions: 89 mm × 66 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 4200-001; 4200-002; MGR1602

Section 2. Overview
The Storm 420 Series Encoder provides an interface between keypad and host system. It can be supplied either as a
separate encoder module or pre-assembled into a Storm keypad to suit end user requirements.
Features / Specifications
• Input Power + 5V ± 0.25V dc
• RS232 Output via 6 pin Molex 2.54mm (.100") Pitch KK® Series Connector
• Drives Powertip 80 Character LCD Display from keypad
• Direct connection to underpanel mounted 12 key, 16 key, 20 key Storm Keypads.
• Ribbon Cable needed for top panel fixing 4 key, 12 key, 16 key Storm Keypads
• Overall Footprint 89mm x 66mm
Electromagnetic Compatibility (EMC)
Storm 420 Series Encoders are classified as a component with regard to the European Community EMC regulations. It
is the equipment manufacturers responsibility to ensure that systems using the Storm 420 Series Encoder are compliant
with the appropriate EMC
standards.
If the electronic system requires input protection against high voltage transients (to meet CE requirements) it is
recommended that an external interface board is located at the point where the external wiring enters the electronic sys-
tem enclosure.
Application : Use of 420 Series Encoder to drive LCD and provide RS232 output on Storm Integrated Keypad /
Display Module.
As a combination the Storm Integrated Keypad/ Display Module with Encoder forms a complete serial communications
device. Alphanumeric output from the unit is communicated via the familiar RS232 physical link layer.
The keypad has 20 keys including ten numeric keys and a further ten special function keys. The LCD module displays
80 characters across 4 lines. Both the keypad and LCD module may be backlit from the controller board.
The module has been designed in such a way that it can be used as part of an embedded application, possibly using a
separate host microcontroller or PC to communicate with the module. Alternatively it may be used as an input interface
since the keypad and LCD functions have been designed to be familiar to most users.
The keypad is arranged as a 5-row, 4 column matrix and is scanned and debounced by the module’s built-in microproc-
essor. The debounce filter is set at 64ms. No typematic key rollover function is implemented. Multi-key lockout is, how-
ever, implemented in the firmware.
Application : Use of 420 Series Encoder to provide RS232 output from Storm K Range Keypads
The encoder can either be fitted directly to the rear of a standard Storm K Range Keypad, or remotely by a ribbon cable.
Where Storm K Range Keypads are underpanel mounted the 420 Encoder can be directly connected, requiring no addi-
tional mounting hardware.
The overall depth required to house the 420 Encoder is 32mm (1.25in) when measured from back of keypad.
Where Storm K Range Keypads are fixed to a panel surface, a ribbon cable and mounting hardware are required (these
items not included with encoder)
This document is provided for use and guidance of engineering personnel engaged in the installation or application of STORM data entry products manufactured by Keymat Technology Ltd. Please be
advised that all information, data, and illustrations contained within this document remain the exclusive property of Keymat Technology Ltd. and are provided for the express and exclusive use as de-
scribed above. This document is not supported by Keymat Technology’s engineering change note, revision or reissue system. Data contained within this document is subject to periodic revision, reis-
sue or withdrawal. Whilst every effort is made to ensure the information, data and illustrations are correct at the time of publication, Keymat Technology Ltd. are not responsible for any errors or omis-
sions contained within this document.
420 Series RS232 Encoder / Application/Engineering Manual Version 1.0 Jan 2004
420 Series RS232 Encoder for Keypad Applications
Application / Engineering Manual
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