System Characteristics - Avaya Communication Server 1000M Single Group Manual

Description
MCR survives up to 54 milliseconds (ms) of delay. For analog channels, echo cancellers are
recommended for round-trip T1 delays of greater than 5ms. MCR signaling channels 1 and 2
must not go through echo cancellers.
Note:
Echo cancellers must not be used for data calls.
MCR Firmware Release 12.01 introduced:
• requirement for the NT7R76AA A0538671 Flash Upgrade Module, one module to be
installed on each LIM, LMX and RMI card.
• Support for the M2006, M2008, M2250, M3890x Phase 1-3 digital telephones for Normal
and Emergency Stand-Alone Mode.
• M3904 and M3905 digital phone DBA Support.
• Preservation of key labels of the M390x telephones when ESAM is configured.
• T1 span failure and call recovery algorithm — allows dynamic movement of existing calls
from a failed T1 span to available time slots on the second T1 span.
• Provision backup/restore — a backup copy of the ESAM database on the MCR can be
made to a PC over the serial port.

System characteristics

The MCR system:
• is compliant with North American requirements,
• remotes existing digital and analog line cards as well as the existing analog universal
trunk card,
• supports existing design versions of the cabinets including AC and DC power options as
well as the existing environmental requirements for both local and remote sites,
• supports existing design versions of the IPE module, cabinet and power components for
use at the local site,
• possesses limited call processing capability, referred to as Emergency Stand-Alone Mode
(ESAM), during link failure or initial installation at the remote site,
• employs a super set of the Man-Machine Interface (MMI) used in the Carrier Remote
Interface product. The Mini-Carrier Remote system uses the same type of extensive
carrier diagnostics that have proven useful on the Carrier Remote IPE product,
• offers controlled access through a password,
• allows multiple LMIs in the same system to share a single 2400 or 9600 baud MMI terminal
(LMXs are accessed through the appropriate LMI),
• supports remote RS-232 serial data interface for the MMI,
• is compatible with standard T1 test equipment for link diagnostic purposes,
28 Mini-Carrier Remote Fundamentals
Comments? infodev@avaya.com
March 2013