Page 1
420 Series RS232 Encoder for Keypad Applications - Installation Instruction
Storm 420 Series Encoders allow interfacing between a Storm keypad and host system using the RS232 communications protocol. This model will also
drive a 4 line x 20 character LCD display. For additional information download the 420 Encoder Application / Engineering Manual from www.keymat.com
SPECIFICATIONS
Input Power …………. 5V dc ± 0.25 V , regulated supply
RS232 Output ………. (via 6 pin Molex
2.54mm (.100") Pitch KK® )
Drives Powertips 80 Character LCD Display
(uses Hitachi HD44780U LCD-II Controller/Driver)
Display Controls :
CONNECTION DETAILS
On host system : Ctrl + L - clears the display, Ctrl + C toggles cursor on and off
Keypad Connector (on reverse of pcb)
KEYPAD TYPE
20 WAY BACKLIT
20 WAY NOT BACKLIT Fit polarising pin
12 / 16 WAY BACKLIT Fit polarising pin
12 / 16 WAY NOT BACKLIT Fit polarising pins
4 WAY BACKLIT Fit polarising pin
4 WAY NOT BACKLIT Fit polarising pins
Encoder Pin
R = ROW,
C = COLUMN
RS232 OUTPUT
JUMPER SETTING
CONTROLS BACKLIT
KEYPAD LED COLOUR
RED
GREEN
JP8
DTR
GND
NC
RTS
RX
TX (Pin 1)
FACTORY
USE ONLY
To Keypad
Θ Θ
Θ Θ
Θ Θ
Θ Θ
Fit polar-
ising pin
1 2 3 4 5 6 7 8 9 10 11 12 13
LED
CATHODE
PIN 1 ON REVERSE
TAMPER
R1 R2 C1 C2 C3 C4 R4 R3
IN
= pin connection made
PN 4200-001
FIRMWARE VERSION eg 5v02
Input Power
Terminals
Overall Size W 89mm x L 66mm x H 32mm
Mounting Centres at 73.5mm x 43.2mm
Direct connection for underpanel fixing ……. 12, 16, 20 way Storm Keypads
Ribbon Cable needed for top panel fixing 4, 12 , 16 way Storm Keypads
Direct connection to rear of keypad ?
YES
Fit polarising
pin
Fit polarising pins
Fit polarising pins
Fit polaris-
R5
FUNCTION
KEYS
ing pin
Fit polarising pins
TAMPER
OUT
LED
ANODE
60 mm
YES —fit polarising pins to positions 1,12 and 13
NO —separate cable required - See Note 1 below
STD version needs 5 way cable
BACKLIT version needs 7 way cable
Fit polarising pins as required
NOTE 1—Connections for 4 way keypads
ENCODER PIN TO KEYPAD PIN
YES
YES
2 NC 1
11 1 2
5 5 6
6 4 5
7 3 4
8 2 3
13 NC 7
STD BACKLIT
Configuration Switches
LCD Display
Contrast
Adjustment
Pin
Symbol
LCD Display Connector, 16 pins, 0.1” square pins
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Vss Vdd Vo RS R/W E DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 A K
ORDERING DETAILS
Stock No Item
4200-00[X] RS232 Encoder
[X] denotes packaging variant
free downloads from www.keymat.com :420 Encoder Application/Engineering Manual
Test Software
Mounting Details Page 1 of 4
420-XX-08KT Rev 2 Apr 2006
88.9 mm
Whilst every effort is
made to ensure details
are correct at time of print,
specifications are subject
to change without notice.
storm data entry technology
usa office :
suite 202
364 pennsylvania avenue
glen ellyn IL 60137 usa
tel : (630) 469 2981
fax : (630) 469 2975
email : sales.usa@storm-keypads.com
website : www.storm-keypads.com
uk office:
keymat technology ltd
14 bentinck court
bentinck road
west drayton
middlesex ub7 7rq
tel : +44 (0) 1895 431421
fax : +44 (0) 1895 431132
email : sales@keymat.com
website : www.keymat.com
Storm is a trademark of Keymat Technology Ltd
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420 Series RS232 only Encoder for Keypad Applications
Fitted to 4, 12 or 16 WAY KEYPAD
Configuration Switch Settings 1 2 3 4 5 6 7 8
4 Way Keypads ON
12 and 16 Way Telephone Layout Keypads ON OFF OFF OFF OFF ON
12 and 16 Way Calculator Layout Keypads ON OFF ON OFF OFF ON
ROW / COLUMN DESIGNATIONS (KEYPADS FRONT VIEW)
For Example R1C2 = Row 1 Column 2. NB : A 20 way keypad is treated as 4 way + 16 way.
4 Way Front View 12 / 16 Way Front View Side View
CHARACTER
ECHOING
SELECTOR
ON = ECHO ON
OFF = ECHO OFF
OFF ON ON ON OFF
TYPICAL INSTALLATION
(rear view, encoder direct connection to keypad, LCD display used)
BAUD RATE
SELECTOR
OFF=9600 BAUD
ON=1200 BAUD
Installation Checklist
Keypad
Encoder , configuration switch set
Panel Fixing prepared
+5V regulated supply
RS 232 cable with 6 way Molex socket
Ribbon cable keypad to encoder if needed
LCD and 16 way ribbon cable if needed
Polarising pins fitted to encoder
To LCD Display
Keypad Pin 1
Power
Input
PIN-OUT FOR 4, 12 and 16 WAY MATRIX KEYPADS
4 WAY KEYPAD (NO BACKLIGHT)
CONTACT CONNECTIONS
(REAR VIEW)
PINS ● ● ● ● ●
PIN NUMBER 5 4 3 2 1
CONTACT MATRIX
PIN
1 R5
2 C4
3 C3
4 C2
5 C1
12 / 16 WAY KEYPAD (NO BACKLIGHT)
CONTACT CONNECTIONS
(REAR VIEW)
PINS ● ● ● ● ● ● ● ●
PIN NUMBER 8 7 6 5 4 3 2 1
CONTACT MATRIX (NO BACKLIGHT)
PIN
1 R1
2 R2
3 C1
4 C2
5 C3
6 C4 (16 WAY ONLY)
7 R4
8 R3
ROW /
COLUMN
ROW /
COLUMN
Mounting Details Page 2 of 4
420-XX-08KT Rev 2 Apr 2006
4 WAY BACKLIT KEYPAD
CONTACT CONNECTIONS
(REAR VIEW)
PINS ● ● ● ● ● ● ●
PIN NUMBER 7 6 5 4 3 2 1
CONTACT MATRIX
PIN
1 LED POWER
2 R5
3 C4
4 C3
5 C2
6 C1
7 LED POWER
12 / 16 WAY BACKLIT KEYPAD
CONTACT CONNECTIONS
(REAR VIEW)
PINS ● ● ● ● ● ● ● ● ● ●
PIN NUMBER 10 9 8 7 6 5 4 3 2 1
CONTACT MATRIX (WITH BACKLIGHT)
PIN
1 LED POWER
2 R1
3 R2
4 C1
5 C2
6 C3
7 C4 (16 WAY ONLY)
8 R4
9 R3
10 LED POWER
ROW /
COLUMN
ROW /
COLUMN
↓
RS232
Output
ASCII CODE TABLES
4 WAY KEYPAD ASCII CODES
ROW/
COLUMN
C1 11
C2 12
C3 13
C4 14
ROW/
COLUMN
R1 31 32 33 61
R2 34 35 36 62
R3 37 38 39 63
R4 2A 30 23 2E
ROW/
COLUMN
R1 37 38 39 1B
R2 34 35 36 0C*
R3 31 35 33 05
R4 7F 30 0D 2E
R5
12 / 16 WAY TELEPHONE KEYPAD ASCII CODES
C1 C2 C3 C4
12 / 16 WAY CALCULATOR KEYPAD ASCII CODES
C1 C2 C3 C4
NOTE 1 : These codes are nonprinting ASCII device control
codes. The application software
will need to assign usage
NOTE 2 : The COMMON pin on
a 4 way is termed ROW 5 to be
consistent with applications using
4 function keys.
* = Form Feed Code to give CLEAR function
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420 Series RS232 only Encoder for Keypad Applications
Fitted to INTEGRATED 20 WAY KEYPAD AND DISPLAY
Configuration Switch Settings 1 2 3 4 5 6 7 8
Integrated 20 Way Keypad and Display - Telephone Layout OFF
Integrated 20 Way Keypad and Display - Calculator Layout OFF ON ON ON ON OFF
CHARACTER
ECHOING
SELECTOR
ON = ECHO ON
OFF = ECHO OFF
ON OFF OFF ON OFF
Note : Remove Jumpers from JP3 and JP4 in this configuration.
BAUD RATE
SELECTOR
OFF=9600 BAUD
ON=1200 BAUD
Installation Checklist
Integrated 20 way Keypad
Encoder , configuration switch set
LCD and 16 way ribbon cable if needed
Panel Fixing prepared
+5V regulated supply
RS 232 cable with 6 way Molex KK socket
13 way ribbon cable keypad to encoder if
needed
Polarising pins fitted to encoder
ROW / COLUMN DESIGNATIONS
( KEYPAD FRONT VIEW)
For Example R1C2 = Row 1 Column 2. NB : A 20 way keypad is
treated as 4 way + 16 way.
PIN-OUT FOR 20 WAY KEYPAD
20 WAY KEYPAD
CONTACT CONNECTIONS
(REAR VIEW)
PINS ● ● ● ● ● ● ● ● ● ● ● ● ●
PIN NUMBER 13 12 11 10 9 8 7 6 5 4 3 2 1
CONTACT MATRIX
PIN
1 NOT USED
2 TAMPER IN
3 R1
4 R2
5 C1
6 C2
7 C3
8 C4
9 R4
10 R3
11 R5
12 TAMPER OUT
13 NOT USED
ROW /
COLUMN
ASCII CODE TABLES
Row /
Column
R5C1
R5C2
R5C3
R5C4
R1C1 1 31 1 31
R1C2
R1C3
R1C4 A 41 ENTER 1B
R2C1
R2C2
R2C3
R2C4 B 42 CLEAR 0C
R3C1
R3C2
R3C3
R3C4 C 43 ? 05
R4C1
R4C2 0 30 0 30
R4C3
ANTI-
TAMPER
OPEN
CIRCUIT
Telephone Layout Calculator Layout
Character ASCII Character ASCII
▲
▲
▲
▲
2
ABC
3
DEF
4
GHI
5
JKL
6
MNO
7
PQRS
8
TUV
9
WXYZ
*
CLR
#
ENT
ENTER 2E CANCEL 2E
.
07* 07*
SECONDS WHILST CONDITION REMAINS
11
12
13
14
32 2 32
33 3 33
34 4 34
35 5 35
36 6 36
37 7 37
38 8 38
39 9 39
2A * 7F
23 # 0D
* = CODE REPEATS EVERY 10
ACTIVE
▲
▲
▲
▲
11
12
13
14
Mounting Details Page 3 of 4
420-XX-08KT Rev 2 Apr 2006
Page 4
420 Series RS232 only Encoder for Keypad Applications
Fitted to 6000 SERIES PINPAD
Configuration Switch Settings R3 1 2 3 4 5 6 7 8
6000 Series Pinpad - Basic Layout fitted OFF
6000 Series Pinpad - UK Layout
6000 Series Pinpad - USA Layout
Note : R3 may need to be removed depending on the configuration
required.
Remove
before use
Remove
before use
OFF ON OFF ON OFF OFF
OFF ON ON ON OFF OFF
BASIC LAYOUT UK LAYOUT USA LAYOUT
CHARACTER
ECHOING
SELECTOR
ON = ECHO ON
OFF = ECHO OFF
ON OFF ON OFF OFF
BAUD RATE
SELECTOR
OFF=9600 BAUD
ON=1200 BAUD
Installation Checklist
Keypad
Encoder , configuration switch set
Panel Fixing prepared
+5V regulated supply
RS 232 cable with 6 way Molex KK socket
13 way ribbon cable keypad to encoder if
needed
Polarising pins fitted to encoder
ROW / COLUMN DESIGNATIONS ASCII CODE TABLES
Row 1
Row 1
Co l um n 1
Row 2
Co l um n 1
Row 3
Co l um n 1
Row 4
Co l um n 1
Co l um n 2
Row 2
Co l um n 2
Row 3
Co l um n 2
Row 4
Co l um n 2
Row 1
Co l u mn 3
Row 2
Co l u mn 3
Row 3
Co l u mn 3
Row 4
Co l u mn 3
Row 1
Co lu m n 4
Row 2
Co lu m n 4
Row 3
Co lu m n 4
Row 4
Co lu m n 4
PIN-OUT FOR 16 WAY MATRIX PINPAD
CONTACT CONNECTIONS
(REAR VIEW)
PINS ● ● ● ● ● ● ● ● ● ● ● ● ●
PIN NUMBER 13 12 11 10 9 8 7 6 5 4 3 2 1
CONTACT MATRIX
PIN
1 NOT USED
2 TAMPER
3 R1
4 R2
5 C1
6 C2
7 C3
8 C4
9 R4
10 R3
11 NC
12 TAMPER
13 NOT USED
ROW /
COLUMN
Row /
Column
R1C1 1 QZ Black 31 1 Black 31 1 QZ Black 31
R1C2 2 ABC Black 32 2 ABC Black 32 2 ABC Black 32
R1C3 3 DEF Black 33 3 DEF Black 33 3 DEF Black 33
R1C4 CANCEL
R2C1 4 GHI Black 34 4 GHI Black 34 4 GHI Black 34
R2C2 5 JKL
R2C3 6 MNO Black 36 6 MNO Black 36 6 MNO Black 36
R2C4 CLEAR
R3C1 7 PRS Black 37 7 PQRS Black 37 7 PRS Black 37
R3C2 8 TUV Black 38 8 TUV Black 38 8 TUV Black 38
R3C3 9 WXY Black 39 9 WXYZ Black 39 9 WXY Black 39
R3C4 ?
R4C1 Black No Code * Black 2A * Black 2A
R4C2 0 Black 30 0 Black 30 0 Black 30
R4C3 . Black 2E # Black 23 # Black 23
R4C4 ENTER
ANTI-
TAMPER
OPEN
CIRCUIT
*= CODE REPEATS EVERY 10 SECONDS WHILST CONDITION REMAINS ACTIVE.
TO RESET—DISCONNECT POWER FOR 30 SECONDS.
Basic Layout UK Layout
Marking Base Key ASCII Marking Base Key ASCII Marking Base Key ASCII
Red with
raised Cross
Black with
Homepip
Yellow with
raised verti-
Blue with
raised Plus
Green with
raised circle
07* 07* 07*
Mounting Details Page 4 of 4
420-XX-08KT Rev 2 Apr 2006
cal line
USA Layout
0D CANCEL
35 5 JKL
7F CLEAR
05 ? Blue 05 ? Blue 05
1B ENTER
Red with
raised Cross
Black with
Homepip
Yellow with
raised
vertical line
Green with
raised circle
0D ENTER
35 5 JKL
7F CLEAR
1B CANCEL
Green with
raised circle
Black with
Homepip
Yellow with
raised verti-
cal line
Red with
raised Cross
1B
35
7F
0D
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