Specifications

2-12 Reference Guide
Model No.
Running Head
Ringing Generators System Installation
3. For a two-sided chassis, remove the panel covering the rear power slots. You can insert
the generator into any of the five rear slots. For the front-loading chassis with power
supplies on top, remove the panel covering the front power slots, and insert the module in
any of the five slots. For the front-loading chassis with power supplies on the side, insert
the ringing generator only into slot R1.
4. 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.
5. 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).
6. Replace the panel cover.
Figure 2-7. 105V Ringing Generator Jumper Setting
2.4.1.1 100V Ringing Generator
To install a 100V Ringing Generator, proceed as follows:
1.
Make sure power is turned off before inserting the ringing generator.
2. Make sure jumper JP1 is installed between the lower two pins (MASTER) if this is the
only ringing generator in the unit, or if it is the MASTER ringing generator. If this is a
SLAVE ringing generator, move the JP1 jumper to the SLAVE (upper two) pins.
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