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198 Interphase Corporation
Users should ensure for their own protection that the electrical
ground connections of the power utility, telephone lines and
internal metallic water pipe system, if present, are connected
together. This precaution may be particularly important in
rural areas.
Caution: Users should not attempt to make such connections
themselves, but should contact the appropriate electric
inspection authority, or electrician, as appropriate.
• Standard Connecting Arrangement: CA-48C
• The Ringer Equivalence Number: Not Applicable