Cisco ATA188-I2-A Administration Guide - Page 35
Power-Down Procedure
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Chapter 2 Installing the Cisco ATA Power-Down Procedure For more information about LEDs and the function button, see the "Hardware Overview" section on page 1-5. Power-Down Procedure Caution If you need to power down Cisco ATA 186 or Cisco 188 at any time, use the following power-down procedure to prevent damage to the unit. Procedure Step 1 Step 2 Step 3 Unplug the RJ45 Ethernet cable Wait for 20 seconds. Unplug the power cable. Warning This equipment contains a ring signal generator (ringer), which is a source of hazardous voltage. Do not touch the RJ-11 (phone) port wires (conductors), the conductors of a cable connected to the RJ-11 port, or the associated circuit-board when the ringer is active. The ringer is activated by an incoming call. OL-4804-01 Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's Guide for H.323 (version 3.0) 2-5