Meridian Communications Unit; Functional Description - Nortel Meridian 1 Description

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Meridian Communications Unit

Functional description

553-3001-108 Standard 9.00 April 2000
The Meridian Communications Unit (MCU) was introduced with
X11 release 19 and provides a stand-alone version of the Meridian
Communications Adapter (MCA).
The Meridian Communications Unit (MCU) allows you to transmit and
receive data using PSDS over either the public network or a private network.
The MCU, which replaced the QMT21C, is designed for domestic and
international use, with transmission speeds up to 19.2 kbps asynch and
64 kpbs synch, integrated display, and self diagnostics. The MCU supports
autodialing, ring again, and speed calling, as well as autobauding and
automatic parity detection. You can use the MCU for the following:
• Video conferencing
• LAN bridging
• Bulk data/PC file transfer
• Dial back-up
• Host connectivity
The MCU fully complies with RS-232C and can be configured as DCE or
DTE to connect to a terminal, printer, or fax machine.
Unlike the MCA, the MCU provides a dedicated call key and call progress
tones. The MCU also permits smart modem pooling.
The MCU supports the DM-DM, T-Link, V.25 bis, and PSDS interfaces as
well as the RS-232C, CCITT V.35, CCITT V.24, and RS570/RS3449 (with
different cables) interfaces. It complies with V.28 for European approval.
Refer to Meridian Communications Unit and Meridian Communications
Adapter: Description, Installation, Administration, Operation
(553-2731-109) for detailed information on this feature.