T1 And E1 Overview - Alcatel-Lucent OmniAccess 700 Cli Configuration Manual

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T1E1 Line Card
T1 E1 O
AND VERVIEW
The T1 and E1 interfaces are two different, independent standardized TDM (Time
Division Multiplexing) technologies. These technologies enable the transmission
of several (multiplexed) voice/data channels simultaneously on the same
transmission facility.
OA7-T1E1-4
Figure 20: OA-700 T1E1 Line Card
Note: For information on the LED status of the T1E1 line card with respect to each port,
please refer "OA-780/OA-740 Hardware Users Guide".
The T1 and E1 is designed for use in businesses. The T1 standard is mostly
deployed in Japan and North American countries, while the E1 is prevalent in
Europe and most of the Asian countries, including India. The E1s and the T1s
belong to the physical layer in the OSI reference model, thus Layer 2 technologies
like the FR, PPP, Cisco HDLC, MLPPP, MLFR, etc., are carried over it.
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