Ring Generator - Switch Settings
When replacing a NT6D42CB or NT6D42CC Ring Generator, always check the DIP switch settings!
| SW1: Freq. |
|---|
| 1 | 20Hz * |
| 2 | 25Hz |
| 3 | 50Hz |
* North America: 20Hz/86V
| SW2: Ring Voltage |
|---|
| 1-2-3 Off | 86V * |
| 1 On, 2-3 Off | 80V |
| 2 On, 1-3 Off | 75V |
| 3 On, 1-2 Off | 70V |
| SW2: Msg Volts |
|---|
| 4 Off | 100V * |
| 4 On | 150V |
- Set Ring Frequency with SW1 (position 1)
- Set Ring and Message Waiting Voltage with SW2 (all off)
Recommended options:
| Application | Ringing
frequency | Ringing
voltage | Message Waiting
voltage | Ringing
output |
|---|
| North America | 20 Hz | 86 Vac | P5: High voltage | Low impedance |
| British Telecom | 25 Hz | 80 Vac | P4: No High voltage | Low impedance |
Settings in detail:
| High voltage message waiting | Pin location |
|---|
| Disable | Jumper in P4 |
| Enable | Jumper in P5 |
| Ringing output | Jumper location J7 |
|---|
| Low impedance (normal) | Connect pins 1 and 2 |
| High impedance (Australia) | Connect pins 2 and 3 |
| Ringing frequency (Hz) | Position SW1 |
|---|
| 20 | 1 |
| 25 | 2 |
| 50 | 3 |
| NT6D42CB | SW2 |
|---|
| Ringing voltage | Message waiting voltage | 1 | 2 | 3 | 4 |
|---|
| 86 Vac | -120 Vdc | off | off | off | off |
| 86 Vac | -150 Vdc | off | off | off | on |
| 80 Vac | -120 Vdc | on | off | off | off |
| 80 Vac | -150 Vdc | on | off | off | on |
| 75 Vac | -120 Vdc | off | on | off | off |
| 75 Vac | -150 Vdc | off | on | off | on |
| 70 Vac | -120 Vdc | off | off | on | off |
| 70 Vac | -150 Vdc | off | off | on | on |
| NT6D42CC | SW2 |
|---|
| Ringing voltage | Message waiting voltage | 1 | 2 | 3 | 4 |
|---|
| 86 Vac | -100 Vdc | off | off | off | off |
| 86 Vac | -150 Vdc | off | off | off | on |
| 80 Vac | -100 Vdc | on | off | off | off |
| 80 Vac | -150 Vdc | on | off | off | on |
| 75 Vac | -100 Vdc | off | on | off | off |
| 75 Vac | -150 Vdc | off | on | off | on |
| 70 Vac | -100 Vdc | off | off | on | off |
| 70 Vac | -150 Vdc | off | off | on | on |