The 1-Port Clear Channel DS3/E3 GPIM functions as a clear channel interface that can
support DS3 (T3) or E3 line rates of 44.796 or 34.368 Mbps, respectively. The device
does not support channelization, but it supports a subrate DS3/E3 configuration. The
DS3/E3 interface is a popular high-bandwidth WAN interface for large enterprise branch
locations that enables high-quality voice, video, and data applications with reduced
latency. The clear channel implementation provides such features as subrate and
scrambling options used by major DSU vendors. The interface also supports loopback,
bit error rate test (BERT), and far-end alarm and control (FEAC) diagnostic capabilities.
It supports Frame Relay, Point-to-Point Protocol (PPP), and High-Speed Data Link
Control (HDLC) serial encapsulation protocols.

The 1-Port Clear Channel DS3/E3 GPIM is suitable for:

•

Branch office and regional sites for medium-sized to large enterprises.

•

Corporate headquarters for medium-sized enterprises.

The 1-Port Clear Channel DS3/E3 GPIM supports IP configurations. Using the
command-line interface (CLI), you can configure the 1-Port Clear Channel DS3/E3 GPIM
to operate in either DS3 or E3 mode.