NEC NEAX 2000 Programming Manual page 714

The initial setting of key layout is for 16 Line/Trunk/Feature keys + 16 One Touch keys.
NOTE:
When using key No. 17-24, set CM12 Y=24, 2nd data=0.
term
D 75 Key Numbers
24 Line/Trunk/Feature Keys + 8 One Touch Keys
NEC
1 2 3
4 5 6
7 8 9
0 #
*
DTP-32D-1
16 Line/Trunk/Feature Keys + 16 One Touch Keys
APPENDIX A TERMINAL KEY ASSIGNMENT
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D Key Numbers
(05)
(01) (02) (03) (04)
(08) (09)
(07) (10) (11)
(16) (17)
(13) (14) (15)
(19) (20) (21) (22) (23)
(91)
Feature
(90)
Recall
(92)
CNF
(93)
LNR/SPD
(97) (96) (95) (94)
Answer Speaker
Hold Transfer
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D Key Numbers
(01) (02) (03) (04)
(05) (06) (07) (08)
(09) (10) (11) (12)
(13) (16)
(14) (15)
(91)
Feature
(90)
Recall
(92)
CNF
(93)
LNR/SPD
(97) (96)
(95) (94)
Answer Speaker
Transfer
Hold
– A4 –
(06)
(12)
(18)
(24)
8 One Touch Keys
16 One Touch Keys
A2A02-10