Coastcom D/I Mux III System - Ringing Generator; Installing the Ringing Generator

D/I Mux III User’s Manual Appendix C. Accessories Installation
216
Ringing Generator
The Ringing Generator (P/N 30034-003) is used to supply ringing voltage for applications with more than
20 Megacom, or heavily used FXS circuits. An external Ringing Generator used with FXS circuits may
require -48 V DC. For more information on FXS circuits, refer to the FXS user’s manual.
Installing the Ringing Generator
Warning!
Ringer voltage is hazardous! Make all connections with power Off!
1. Connect pin 1 on the ring generator to chassis ground on the D/I Mux III multiplexer
backplane.
2. Connect pin 2 on the ring generator to positive ground on the D/I Mux III multiplexer
backplane.
3. Connect pin 3 on the ring generator to -48 V DC (battery) on the D/I Mux III backplane.
4. Connect pin 4 to pin 3 (both on the ring generator), to bias the ringer with -48 V DC.
5. Connect pin 5 on the ring generator to the ringer input of the D/I Mux III backplane.
6. Apply power.
Figure C-1 depicts a typical ring generator.
Figure C-1. Typical Ring Generator Circuit Diagram