Maintenance and Troubleshooting
3. If the interlocking post is not broken, reinstall the power supply. See Reinstalling the Power
Supply.
Figure 4-1. Power Supply Interlocking Post on Plastic Carrier
1
Interlocking Post
Replacing the Ring Generator (Plastic Carrier)
If tip/ring devices (such as single-line telephones, fax machines, and answering machines) do not
ring, and an older 012 module is installed, try the procedure below.
Current 012 modules contain built-in ring generators (apparatus code 517G13 (28) or higher
letter). If tip/ring devices connected to a newer module do not ring, see
page 4-18. For plastic carriers, see the following table to determine which 012 module is installed.
All 016 (T/R) modules contain built-in ring generators.
Power Supply Problems
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''Module Problems''
on