Power And Grounding On The Imacs-200; Power Supply And Ringing Generator; Ringing Generator; Ringing Generator Load Versus Ren - Zhone IMA CS-200 System Reference Manual

System Installation
2.5

Power and Grounding on the IMACS-200

2.5.1

Power Supply and Ringing Generator

The power supply and ringing generator system can consist of up to two power supplies, and
has one on-board ringing generator. The IMACS-200 comes with the proper power supplies
factory-assembled depending on the ordering information provided at the time of purchase.
2.5.1.1

Ringing Generator

The Ringing Generator on the IMACS-200 outputs 86Vrms at 20Hz. That is the output if
ringing into a 1 to 4 REN load. If the load increases, the built-in overload protection will
reduce the output voltage in steps as shown in Table 2-11.
This ability inherent in the IMACS-200 provides continuous service up to 12 North American
REN loads without distortion.
Following is more detailed information regarding the power inputs.
System Installation
Power and Grounding on the IMACS-200
Table 2-11. Ringing Generator Load Versus REN
Output Ringing Amplitude
86 Vrms
75 Vrms
70 Vrms
60 Vrms
50 Vrms
45 Vrms
Short Circuit Protection Active
Load[1REN =
6930Ohms and 8
picoFarads]
4REN
5REN
6REN
8REN
10REN
12REN
>>12REN
2-13