Nortel Networks Circuit Card User Manual
Page 115
Advertising
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
Advertising