Nortel Networks Circuit Card User Manual
Page 126 of 906
Option settings
NT8D21 Ringing Generator AC
Frequency
Amplitude
Settings
P1
P2
P3
20 Hz
86 V ac
open
open
2–5
8–11
25 Hz
70 V ac
open
1–4
7–10
open
25 Hz
80 V ac
open
3–6
9–12
open
25 Hz
86 V ac
open
2–5
8–11
open
50 Hz
70 V ac
1–4
7–10
open
open
50 Hz
80 V ac
3–6
9–12
open
open