Specifications

3-12
Reference Guide
Model No.
Running Head
Ringing Generators System Installation
11. Hold the unit by its metal handle and align the PCB edges with the slot rail guides in the
power supply backplane. Gently push the unit in until it is firmly seated in the backplane
connector.
12. If the power supply is installed and power is on, the LED on the rear panel of the ringing
generator should flicker at a rate of 20 times per second. A problem exists if this LED is
not flickering. Verify that the MASTER/SLAVE settings are correct, and that the unit is
firmly seated in the connector. If so, replace the ringing generator (it is faulty).
13. Replace the panel cover.
Figure 3-7. 105V Ringing Generator Jumper Setting
Power
Bus
Edge
Connector
Slave
Master
JP1
Master/Slave
Jumper
JP2