DR51 Keypad Reference

11/29/04

Industrologic, Inc. 3201 Highgate Lane, St. Charles, MO, 63301, USA

Phone: (636) 723-4000       www.industrologic.com      info@industrologic.com



This reference lists the connections for a variety of specific manufacturer's keypads to connector J1 on the Industrologic DR51 when the keypad connections are numbered or otherwise identified. Note that some manufacturers do not number the pins in sequential order or letter the pins in alphabetical order.

This reference also provides the instructions in Tiny Machine Basic for the DR51 to interpret these connections. The instructions that specify the characters associated with the switches on the keypads assume either a 12 key telephone style keypad or a 16 key telephone style keypad with additional letters. The keypads listed in this reference may be marked differently than these program lines specify, but the program lines may be changed to any character desired.

Refer to the section Keypad/Digital I/O Connector in the DR51 Reference Manual for a detailed explanation of the signals connected to J1, and in particular if you will be connecting one of the illuminated keypads listed to the DR51.

Refer to the section Keypad Instructions in the reference manual Tiny Machine Basic for the DR51, the software reference manual, for an explanation of switch matrix keypads and their rows and columns.

Industrologic, Inc.

KP16 (use 8 pin cable and the markings 1-8 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone/letters)
sig  pin  pin  funct
D8   1    1    column 1       230 PRINT 4        240 PRINT "1"     248 PRINT "7"
D7   2    2    column 2       231 PRINT 3        241 PRINT "2"     249 PRINT "8"
D6   3    3    column 3       232 PRINT 2        242 PRINT "3"     250 PRINT "9"
D5   4    4    column 4       233 PRINT 1        243 PRINT "A"     251 PRINT "C"
D4   5    5    row 1          234 PRINT 8        244 PRINT "4"     252 PRINT "*"
D3   6    6    row 2          235 PRINT 7        245 PRINT "5"     253 PRINT "0"
D2   7    7    row 3          236 PRINT 6        246 PRINT "6"     254 PRINT "#"
D1   8    8    row 4          237 PRINT 5        247 PRINT "B"     255 PRINT "."

Keymat Technology Ltd.

12 key Storm K Range (use 8 pin cable and the markings 1-8 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone style)
sig  pin  pin  funct
D8   1    1    row 1          230 PRINT 8        240 PRINT "1"     248 PRINT "7"
D7   2    2    row 2          231 PRINT 7        241 PRINT "2"     249 PRINT "8"
D6   3    3    column 1       232 PRINT 1        242 PRINT "3"     250 PRINT "9"
D5   4    4    column 2       233 PRINT 2        (243 not needed)  (251 not needed)
D4   5    5    column 3       234 PRINT 6        244 PRINT "4"     252 PRINT "*"
D3   6    6    n/c            235 PRINT 5        245 PRINT "5"     253 PRINT "0"
D2   7    7    row 4          236 PRINT 4        246 PRINT "6"     254 PRINT "#"
D1   8    8    row 3          (237 not needed)   (247 not needed)  (255 not needed)


16 key Storm K Range (use 8 pin cable and the markings 1-8 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone/letters)
sig  pin  pin  funct
D8   1    1    row 1          230 PRINT 8        240 PRINT "1"     248 PRINT "7"
D7   2    2    row 2          231 PRINT 7        241 PRINT "2"     249 PRINT "8"
D6   3    3    column 1       232 PRINT 1        242 PRINT "3"     250 PRINT "9"
D5   4    4    column 2       233 PRINT 2        243 PRINT "A"     251 PRINT "C"
D4   5    5    column 3       234 PRINT 6        244 PRINT "4"     252 PRINT "*"
D3   6    6    column 4       235 PRINT 5        245 PRINT "5"     253 PRINT "0"
D2   7    7    row 4          236 PRINT 4        246 PRINT "6"     254 PRINT "#"
D1   8    8    row 3          237 PRINT 3        247 PRINT "B"     255 PRINT "."


12 key VR/GFX Illuminator with red LED's (use 10 pin cable and the markings 1-10 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone style)
sig  pin  pin  funct
+5   1    1    LED anode
D8   2    2    row 1          230 PRINT 8        240 PRINT "1"     248 PRINT "7"
D7   3    3    row 2          231 PRINT 7        241 PRINT "2"     249 PRINT "8"
D6   4    4    column 1       232 PRINT 1        242 PRINT "3"     250 PRINT "9"
D5   5    5    column 2       233 PRINT 2        (243 not needed)  (251 not needed)
D4   6    6    column 3       234 PRINT 6        244 PRINT "4"     252 PRINT "*"
D3   7    7    n/c            235 PRINT 5        245 PRINT "5"     253 PRINT "0"
D2   8    8    row 4          236 PRINT 4        246 PRINT "6"     254 PRINT "#"
D1   9    9    row 3          (237 not needed)   (247 not needed)  (255 not needed)
sink 10   10   LED cathode

16 key VR/GFX Illuminator with red LED's (use 10 pin cable and the markings 1-10 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone/letters)
sig  pin  pin  funct
+5   1    1    LED anode
D8   2    2    row 1          230 PRINT 8        240 PRINT "1"     248 PRINT "7"
D7   3    3    row 2          231 PRINT 7        241 PRINT "2"     249 PRINT "8"
D6   4    4    column 1       232 PRINT 1        242 PRINT "3"     250 PRINT "9"
D5   5    5    column 2       233 PRINT 2        243 PRINT "A"     251 PRINT "C"
D4   6    6    column 3       234 PRINT 6        244 PRINT "4"     252 PRINT "*"
D3   7    7    column 4       235 PRINT 5        245 PRINT "5"     253 PRINT "0"
D2   8    8    row 4          236 PRINT 4        246 PRINT "6"     254 PRINT "#"
D1   9    9    row 3          237 PRINT 3        247 PRINT "B"     255 PRINT "."
sink 10   10   LED cathode


12 key VR/GFX Illuminator with green or white LED's (use 10 pin cable and the markings 1-10 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone style)
sig  pin  pin  funct
+5   1    10   LED anode
D8   2    9    row 3          230 PRINT 1        240 PRINT "1"     248 PRINT "7"
D7   3    8    row 4          231 PRINT 2        241 PRINT "2"     249 PRINT "8"
D6   4    7    n/c            232 PRINT 8        242 PRINT "3"     250 PRINT "9"
D5   5    6    column 3       233 PRINT 7        (243 not needed)  (251 not needed)
D4   6    5    column 2       234 PRINT 3        244 PRINT "4"     252 PRINT "*"
D3   7    4    column 1       235 PRINT 4        245 PRINT "5"     253 PRINT "0"
D2   8    3    row 2          236 PRINT 5        246 PRINT "6"     254 PRINT "#"
D1   9    2    row 1          (237 not needed)   (247 not needed)  (255 not needed)
sink 10   1    LED cathode


16 key VR/GFX Illuminator with green or white LED's (use 10 pin cable and the markings 1-10 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone/letters)
sig  pin  pin  funct
+5   1    10   LED anode
D8   2    9    row 3          230 PRINT 1        240 PRINT "1"     248 PRINT "7"
D7   3    8    row 4          231 PRINT 2        241 PRINT "2"     249 PRINT "8"
D6   4    7    column 4       232 PRINT 8        242 PRINT "3"     250 PRINT "9"
D5   5    6    column 3       233 PRINT 7        243 PRINT "A"     251 PRINT "C"
D4   6    5    column 2       234 PRINT 3        244 PRINT "4"     252 PRINT "*"
D3   7    4    column 1       235 PRINT 4        245 PRINT "5"     253 PRINT "0"
D2   8    3    row 2          236 PRINT 5        246 PRINT "6"     254 PRINT "#"
D1   9    2    row 1          237 PRINT 6        247 PRINT "B"     255 PRINT "."
sink 10   1    LED cathode

MGR Industries, Inc. "AK" Series

AK-207 and AK-707, 12 key  (use 7 pin cable and the markings 1-7 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone style)
sig  pin  pin  funct
D8   1    1    column 2       230 PRINT 7        240 PRINT "1"     248 PRINT "7"
D7   2    2    row 1          231 PRINT 2        241 PRINT "2"     249 PRINT "8"
D6   3    3    column 1       232 PRINT 3        242 PRINT "3"     250 PRINT "9"
D5   4    4    row 4          233 PRINT 5        (243 not needed)  (251 not needed)
D4   5    5    column 3       234 PRINT 6        244 PRINT "4"     252 PRINT "*"
D3   6    6    row 3          235 PRINT 8        245 PRINT "5"     253 PRINT "0"
D2   7    7    row 2          236 PRINT 4        246 PRINT "6"     254 PRINT "#"
D1   8                       (237 not needed)   (247 not needed)  (255 not needed)


AK-1607, 16 key  (use 8 pin cable and the markings 1-8 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone/letters)
sig  pin  pin  funct
D8   1    1    row 2          230 PRINT 1        240 PRINT "1"     248 PRINT "7"
D7   2    2    row 3          231 PRINT 8        241 PRINT "2"     249 PRINT "8"
D6   3    3    column 1       232 PRINT 7        242 PRINT "3"     250 PRINT "9"
D5   4    4    row 4          233 PRINT 5        243 PRINT "A"     251 PRINT "C"
D4   5    5    column 2       234 PRINT 6        244 PRINT "4"     252 PRINT "*"
D3   6    6    column 3       235 PRINT 4        245 PRINT "5"     253 PRINT "0"
D2   7    7    column 4       236 PRINT 3        246 PRINT "6"     254 PRINT "#"
D1   8    8    row 1          237 PRINT 2        247 PRINT "B"     255 PRINT "."

Grayhill

Series 96 Standard Version, 12 key  (use 7 pin cable and the markings 1-7 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone style)
sig  pin  pin  funct
D8   1    1    row 1          230 PRINT 8        240 PRINT "1"     248 PRINT "7"
D7   2    2    row 2          231 PRINT 7        241 PRINT "2"     249 PRINT "8"
D6   3    3    row 3          232 PRINT 6        242 PRINT "3"     250 PRINT "9"
D5   4    4    row 4          233 PRINT 5        (243 not needed)  (251 not needed)
D4   5    5    column 1       234 PRINT 4        244 PRINT "4"     252 PRINT "*"
D3   6    6    column 2       235 PRINT 3        245 PRINT "5"     253 PRINT "0"
D2   7    7    column 3       236 PRINT 2        246 PRINT "6"     254 PRINT "#"
D1   8                        (237 not needed)   (247 not needed)  (255 not needed)


Series 96 Standard Version, 16 key  (use 8 pin cable and the markings 1-8 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone/letters)
sig  pin  pin  funct
D8   1    1    row 1          230 PRINT 8        240 PRINT "1"     248 PRINT "7"
D7   2    2    row 2          231 PRINT 7        241 PRINT "2"     249 PRINT "8"
D6   3    3    row 3          232 PRINT 6        242 PRINT "3"     250 PRINT "9"
D5   4    4    row 4          233 PRINT 5        243 PRINT "A"     251 PRINT "C"
D4   5    5    column 1       234 PRINT 4        244 PRINT "4"     252 PRINT "*"
D3   6    6    column 2       235 PRINT 3        245 PRINT "5"     253 PRINT "0"
D2   7    7    column 3       236 PRINT 2        246 PRINT "6"     254 PRINT "#"
D1   8    8    column 4       237 PRINT 1        247 PRINT "B"     255 PRINT "."


Series 86 and 88, 12 key  (use 7 pin cable and the markings 1-7 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone style)
sig  pin  pin  funct
D8   1    K    row 1          230 PRINT 8        240 PRINT "1"     248 PRINT "7"
D7   2    J    row 2          231 PRINT 7        241 PRINT "2"     249 PRINT "8"
D6   3    H    row 3          232 PRINT 6        242 PRINT "3"     250 PRINT "9"
D5   4    G    row 4          233 PRINT 5        (243 not needed)  (251 not needed)
D4   5    F    column 1       234 PRINT 4        244 PRINT "4"     252 PRINT "*"
D3   6    E    column 2       235 PRINT 3        245 PRINT "5"     253 PRINT "0"
D2   7    D    column 3       236 PRINT 2        246 PRINT "6"     254 PRINT "#"
D1   8                        (237 not needed)   (247 not needed)  (255 not needed)


Series 86 and 88, 16 key  (use 8 pin cable and the markings 1-8 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone/letters)
sig  pin  pin  funct
D8   1    M    row 1          230 PRINT 8        240 PRINT "1"     248 PRINT "7"
D7   2    L    row 2          231 PRINT 7        241 PRINT "2"     249 PRINT "8"
D6   3    K    row 3          232 PRINT 6        242 PRINT "3"     250 PRINT "9"
D5   4    J    row 4          233 PRINT 5        243 PRINT "A"     251 PRINT "C"
D4   5    H    column 1       234 PRINT 4        244 PRINT "4"     252 PRINT "*"
D3   6    G    column 2       235 PRINT 3        245 PRINT "5"     253 PRINT "0"
D2   7    F    column 3       236 PRINT 2        246 PRINT "6"     254 PRINT "#"
D1   8    E    column 4       237 PRINT 1        247 PRINT "B"     255 PRINT "."


Series 84, 12 key  (use 7 pin cable and the markings 1-7 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone style)
sig  pin  pin  funct
D8   1    A    column 3       230 PRINT 2        240 PRINT "1"     248 PRINT "7"
D7   2    B    column 2       231 PRINT 3        241 PRINT "2"     249 PRINT "8"
D6   3    C    column 1       232 PRINT 4        242 PRINT "3"     250 PRINT "9"
D5   4    D    row 4          233 PRINT 5        (243 not needed)  (251 not needed)
D4   5    E    row 3          234 PRINT 6        244 PRINT "4"     252 PRINT "*"
D3   6    F    row 2          235 PRINT 7        245 PRINT "5"     253 PRINT "0"
D2   7    G    row 1          236 PRINT 8        246 PRINT "6"     254 PRINT "#"
D1   8                        (237 not needed)   (247 not needed)  (255 not needed)

Series 84, 16 key  (use 8 pin cable and the markings 1-8 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone/letters)
sig  pin  pin  funct
D8   1    A    column 1       230 PRINT 4        240 PRINT "1"     248 PRINT "7"
D7   2    B    column 2       231 PRINT 3        241 PRINT "2"     249 PRINT "8"
D6   3    C    column 3       232 PRINT 2        242 PRINT "3"     250 PRINT "9"
D5   4    D    column 4       233 PRINT 1        243 PRINT "A"     251 PRINT "C"
D4   5    E    row 1          234 PRINT 8        244 PRINT "4"     252 PRINT "*"
D3   6    F    row 2          235 PRINT 7        245 PRINT "5"     253 PRINT "0"
D2   7    G    row 3          236 PRINT 6        246 PRINT "6"     254 PRINT "#"
D1   8    H    row 4          237 PRINT 5        247 PRINT "B"     255 PRINT "."


Series 81, 12 key  (use the two 4 pin connectors attached and the markings 1-8 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone style)
sig  pin  pin  funct
D8   1    A    column 1       230 PRINT 4        240 PRINT "1"     248 PRINT "7"
D7   2    B    column 2       231 PRINT 3        241 PRINT "2"     249 PRINT "8"
D6   3    C    column 3       232 PRINT 2        242 PRINT "3"     250 PRINT "9"
D5   4    D    n/c            233 PRINT 1        (243 not needed)  (251 not needed)
D4   5    E    row 1          234 PRINT 8        244 PRINT "4"     252 PRINT "*"
D3   6    F    row 2          235 PRINT 7        245 PRINT "5"     253 PRINT "0"
D2   7    G    row 3          236 PRINT 6        246 PRINT "6"     254 PRINT "#"
D1   8    H    row 4          (237 not needed)   (247 not needed)  (255 not needed)


Series 81, 16 key  (use two 4 pin connectors attached and the markings 1-8 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone/letters)
sig  pin  pin  funct
D8   1    A    column 1       230 PRINT 4        240 PRINT "1"     248 PRINT "7"
D7   2    B    column 2       231 PRINT 3        241 PRINT "2"     249 PRINT "8"
D6   3    C    column 3       232 PRINT 2        242 PRINT "3"     250 PRINT "9"
D5   4    D    column 4       233 PRINT 1        243 PRINT "A"     251 PRINT "C"
D4   5    E    row 1          234 PRINT 8        244 PRINT "4"     252 PRINT "*"
D3   6    F    row 2          235 PRINT 7        245 PRINT "5"     253 PRINT "0"
D2   7    G    row 3          236 PRINT 6        246 PRINT "6"     254 PRINT "#"
D1   8    H    row 4          237 PRINT 5        247 PRINT "B"     255 PRINT "."

C and K Switch and In2Tec Ltd.

4234A1, 12 key  (use the 7 pin connector attached and the markings 1-7 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone style)
sig  pin  pin  funct
D8   1    1    column 1       230 PRINT 2        240 PRINT "1"     248 PRINT "7"
D7   2    2    column 2       231 PRINT 3        241 PRINT "2"     249 PRINT "8"
D6   3    3    column 3       232 PRINT 4        242 PRINT "3"     250 PRINT "9"
D5   4    4    row 4          233 PRINT 5        (243 not needed)  (251 not needed)
D4   5    5    row 3          234 PRINT 8        244 PRINT "4"     252 PRINT "*"
D3   6    6    row 2          235 PRINT 7        245 PRINT "5"     253 PRINT "0"
D2   7    7    row 1          236 PRINT 6        246 PRINT "6"     254 PRINT "#"
D1   8                       (237 not needed)   (247 not needed)  (255 not needed)


4244A1, 16 key  (use the 8 pin connector attached and the markings 1-8 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone/letters)
sig  pin  pin  funct
D8   1    1    column 1       230 PRINT 1        240 PRINT "1"     248 PRINT "7"
D7   2    2    column 2       231 PRINT 2        241 PRINT "2"     249 PRINT "8"
D6   3    3    column 3       232 PRINT 3        242 PRINT "3"     250 PRINT "9"
D5   4    4    column 4       233 PRINT 4        243 PRINT "A"     251 PRINT "C"
D4   5    5    row 4          234 PRINT 8        244 PRINT "4"     252 PRINT "*"
D3   6    6    row 3          235 PRINT 7        245 PRINT "5"     253 PRINT "0"
D2   7    7    row 2          236 PRINT 6        246 PRINT "6"     254 PRINT "#"
D1   8    8    row 1          237 PRINT 5        247 PRINT "B"     255 PRINT "."

EECO Switch

EK-112, 12 key  (use 7 pin cable and the markings 1-7 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone style)
sig  pin  pin  funct
D8   1    1    column 3       230 PRINT 2        240 PRINT "1"     248 PRINT "7"
D7   2    2    column 2       231 PRINT 3        241 PRINT "2"     249 PRINT "8"
D6   3    3    column 1       232 PRINT 4        242 PRINT "3"     250 PRINT "9"
D5   4    4    row 4          233 PRINT 5        (243 not needed)  (251 not needed)
D4   5    5    row 3          234 PRINT 6        244 PRINT "4"     252 PRINT "*"
D3   6    6    row 2          235 PRINT 7        245 PRINT "5"     253 PRINT "0"
D2   7    7    row 1          236 PRINT 8        246 PRINT "6"     254 PRINT "#"
D1   8                       (237 not needed)   (247 not needed)  (255 not needed)


EK-212, 12 key  (use 7 pin cable and the markings 1-7 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone style)
sig  pin  pin  funct
D8   1    2    column 3       230 PRINT 2        240 PRINT "1"     248 PRINT "7"
D7   2    3    column 2       231 PRINT 3        241 PRINT "2"     249 PRINT "8"
D6   3    4    column 1       232 PRINT 4        242 PRINT "3"     250 PRINT "9"
D5   4    5    row 4          233 PRINT 5        (243 not needed)  (251 not needed)
D4   5    6    row 3          234 PRINT 6        244 PRINT "4"     252 PRINT "*"
D3   6    7    row 2          235 PRINT 7        245 PRINT "5"     253 PRINT "0"
D2   7    8    row 1          236 PRINT 8        246 PRINT "6"     254 PRINT "#"
D1   8                        (237 not needed)   (247 not needed)  (255 not needed)


EK-116, 16 key  (use 8 pin cable and the markings 1-8 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone/letters)
sig  pin  pin  funct
D8   1    2    column 4       230 PRINT 1        240 PRINT "1"     248 PRINT "7"
D7   2    3    column 3       231 PRINT 2        241 PRINT "2"     249 PRINT "8"
D6   3    4    column 2       232 PRINT 3        242 PRINT "3"     250 PRINT "9"
D5   4    5    column 1       233 PRINT 4        243 PRINT "A"     251 PRINT "C"
D4   5    6    row 4          234 PRINT 5        244 PRINT "4"     252 PRINT "*"
D3   6    7    row 3          235 PRINT 6        245 PRINT "5"     253 PRINT "0"
D2   7    8    row 2          236 PRINT 7        246 PRINT "6"     254 PRINT "#"
D1   8    9    row 1          237 PRINT 8        247 PRINT "B"     255 PRINT "."

Dewhurst plc

MA10, 12 key  (use the 7 pin connector attached and the markings 1-7 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone style)
sig  pin  pin  funct
D8   1    1    column 1       230 PRINT 2        240 PRINT "1"     248 PRINT "7"
D7   2    2    column 2       231 PRINT 3        241 PRINT "2"     249 PRINT "8"
D6   3    3    column 3       232 PRINT 4        242 PRINT "3"     250 PRINT "9"
D5   4    4    row 4          233 PRINT 5        (243 not needed)  (251 not needed)
D4   5    5    row 3          234 PRINT 8        244 PRINT "4"     252 PRINT "*"
D3   6    6    row 2          235 PRINT 7        245 PRINT "5"     253 PRINT "0"
D2   7    7    row 1          236 PRINT 6        246 PRINT "6"     254 PRINT "#"
D1   8                        (237 not needed)   (247 not needed)  (255 not needed)


MA11, 16 key  (use the 8 pin connector attached and the markings 1-8 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone/letters)
sig  pin  pin  funct
D8   1    1    column 4       230 PRINT 1        240 PRINT "1"     248 PRINT "7"
D7   2    2    column 1       231 PRINT 2        241 PRINT "2"     249 PRINT "8"
D6   3    3    column 2       232 PRINT 3        242 PRINT "3"     250 PRINT "9"
D5   4    4    column 3       233 PRINT 4        243 PRINT "A"     251 PRINT "C"
D4   5    5    row 4          234 PRINT 7        244 PRINT "4"     252 PRINT "*"
D3   6    6    row 3          235 PRINT 6        245 PRINT "5"     253 PRINT "0"
D2   7    7    row 2          236 PRINT 5        246 PRINT "6"     254 PRINT "#"
D1   8    8    row 1          237 PRINT 8        247 PRINT "B"     255 PRINT "."

Velleman Electronics 16 Key

B.G. Micro SWT1067
Electronix Express 17KP1604
various other distributors carry this keypad
(use 8 pin cable and the markings 1-8 on J1)

DR51 J1   KP   KP             TMB row/col lines  TMB character lines (telephone/letters)
sig  pin  pin  funct
D8   1    1    column 1       230 PRINT 4        240 PRINT "1"     248 PRINT "7"
D7   2    2    column 2       231 PRINT 3        241 PRINT "2"     249 PRINT "8"
D6   3    3    column 3       232 PRINT 2        242 PRINT "3"     250 PRINT "9"
D5   4    4    column 4       233 PRINT 1        243 PRINT "A"     251 PRINT "C"
D4   5    5    row 1          234 PRINT 8        244 PRINT "4"     252 PRINT "*"
D3   6    6    row 2          235 PRINT 7        245 PRINT "5"     253 PRINT "0"
D2   7    7    row 3          236 PRINT 6        246 PRINT "6"     254 PRINT "#"
D1   8    8    row 4          237 PRINT 5        247 PRINT "B"     255 PRINT "."
log file