Nortel Networks Circuit Card - Manual (Page 115)

Option settings Page 115 of 906
Circuit Card Description and Installation
Table 25
NT6D42 SW1
Ringing frequency (Hz) Position SW1
20 1
25 2
50 3
Table 26
NT6D42CB SW2
SW2
Ringing
voltage
Message waiting
voltage 1 2 3 4
86 V ac –120 V dc off off off off
86 V ac –150 V dc off off off on
80 V ac –120 V dc on off off off
80 V ac –150 V dc on off off on
75 V ac –120 V dc off on off off
75 V ac –150 V dc off on off on
70 V ac –120 V dc off off on off
70 V ac –150 V dc off off on on