Nortel Meridian SL-100 Reference Manual page 241

9 Press dial pad key 4.
Response:
LCD 4 comes on.
10 Press dial pad key 5.
Response:
LCD 5 comes on.
11 Press dial pad key 6.
Response:
LCD 6 comes on.
12 Press dial pad key 7.
Response:
LCD 7 comes on.
13 Press dial pad key 8.
Response:
LCD 8 comes on.
14 Press dial pad key 9.
Response:
LCDs 1 and 8 come on.
15
Press dial pad key 0.
Response:
LCDs 2 and 8 come on.
16 Press dial pad key * (asterisk).
Response:
All LCDs come on. (See Note.)
17 Press dial pad key # (pound).
Response:
All LCDs turn off. (See Note.)
18 Press Function key 1.
Response:
LCD 1 comes on.
Meridian SuperNode MSL-100 Meridian Modular Telephones Reference Manual MSL11
Testing and maintenance 10-3