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Previously, the DS3 interface supported the T1 protocol only. As of software 10.5.1, support for the E1 protocol over DS3 line has been added. The IMG 1010 now supports either T1 or E1 protocol but not both. The IMG 1010 can be set up to support either T1 or E1 Protocol based on the value of the Host Flag setting in the dhcpd.conf file. See IMG 1010 - Setting Host Flags for more information on setting host flags. Below is information on span/channel support for either E1 or T1.

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Below are multiple links to topics describing the Hardware Specifications for the IMG 1010 equipped with a DS3 Interface.

Hardware Reference:

IMG 1010 - Hardware Reference

Front Panel:

IMG 1010 - Front Panel

Power Supply:

IMG 1010 - Power

Hardware Reference (N+1):

IMG 1010 - N plus 1 DS3 Overview