I-Tech Company CMS 6R4 Series - Manual (Page 13)

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Unit Description
 10Base-T Port (Network Port): An RJ45 Ethernet Port for connection
to your TCP/IP network. The 10Base-T Port also features an Activity
Indicator flashes to indicate activity at the Network Port. The default
IP Address is 192.168.168.168. For more information on Network Port
configuration, please refer to Section 5.5.2.
 Phone Line Port (Internal Modem Port): For connection to your phone
line. For information regarding modem configuration, please refer to
Section 5.5.4.

Main Power Switch: Applies power to the CMS-6R4. This switch must
be "On" in order for the CMS-6R4 to function. Note that this switch is
not used to set the On/Off status of the switched outlets.