Radio Shack 43-938 Owner's Manual page 9

43-938.fm Page 9 Thursday, July 8, 1999 6:51 AM
FCC INFORMATION
We have designed your CID to conform to federal
regulations, and you can connect it to most tele-
phone lines. However, each CID (and each de-
vice, such as a telephone or answering machine)
that you connect to the telephone line draws pow-
er from the line. We refer to this power draw as
the device's ringer equivalence number or REN.
The REN is on the bottom of the Caller ID.
If you use more than one telephone or other de-
vice on the line, add up all of the RENs. If the to-
tal is more than five (three in rural areas), your
telephone might not ring. If ringer operation is im-
paired, remove a device from the line.
Your CID complies with Part 68 of FCC Rules .
You must, upon request, provide the FCC regis-
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