Ring Generator - Cisco VCO/4K Mechanical Assemblies

Ring Generator

5.0 RING GENERATOR
The ring generator is active only when it is installed in the left power supply module. Ring
generators can be installed in both power supply modules in a redundant system. However, the
ring generator in the right power supply module is not connected to the system and is
considered a spare. Power loss to the left power supply module results in loss of the ring
generator (if installed).
The two circuit configuration jumpers, JP6 and JP7, on the power supply module, are
configured as shown in Table 4 when the VCO is shipped with a ring generator installed. This
configuration is required for proper operation of the ring generator alarm and its LED. Refer
to Section 3.2 for information about the LED.
If your system has a ring generator, you must install JP7, in the left module only.
Configuration
Right Power Supply Module
Left Power Supply Module
without a ring generator
Left Power Supply Module
with a ring generator
Note: If you install a ring generator, configure the JP6 and JP7 jumpers. The ring
generator kit includes installation instructions.
1-12 Cisco VCO/4K Mechanical Assemblies
Table 4: JP6 and JP7 Configuration
JP6
Install when ring generator is present Remove
Remove
Install
JP7
Remove
Install