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DoorKing Model 1877-010 Telephone Line Surge Suppressor Manual

Product Overview

The Model 1877 may be used to protect telephone equipment from surges on the incoming telephone lines. Protection is provided from TIP to Ground, RING to Ground, and TIP to RING. The clamping voltage is approximately 200 volts.

Caution: Only use on standard Central Office TIP and RING lines.


General Guidelines

The following guidelines should be followed for properly installing the Model 1877 Surge Suppressor to a telephone line:

1. Using a water protected enclosure, mount the Surge Suppressor as close as possible to the equipment it will be protecting.
2. Wire the input and output connections to the marked terminals.
3. Connect the GND terminal to a ground rod driven eight (8) feet into the soil. Use at least 12 AWG wire for the ground wire.

Wiring Diagram

Wiring Diagram for 1877-010 Surge Suppressor