Nortel Communication Server 1000 Fundamentals page 25

•
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,
•
provides automatic and manual fault detection, isolation and correction
for MCR components similar to that of the Carrier Remote Interface
product,
•
supports existing software diagnostic routines,
•
provides alarm notification for link performance degradation, and
•
supports up to 32 voice ports and 32 data ports through a single LMI
and up to 22 simultaneous telephone calls for each T1 carrier link
used.
Blocking
The level of blocking is determined by the number of telephones
configured at the remote site. Mini-Carrier Remote supports up to 44
simultaneous calls per LMI. If a non-blocking system is desired, the
telephones may be configured appropriately. Up to 128 telephones can
be configured yielding a 44:128 ratio. If installing telephones for use by
Automatic Call Distribution (ACD) agents, allot one timeslot for each
telephone configured for ACD functionality. This ensures non-blocked
access for the ACD agent.
T1 framing modes ESF and D4 are supported. T1 B8ZS encoding must be
used due to the digital nature of the T1 usage.
LED indicators
A red faceplate LED indicates the status of the LMI. Two red Carrier LEDs
indicate the status of the carriers, and a Maintenance LED indicates the
condition of all non-carriers that affect service.
DIP switches
Three cards have DIP switches that must be configured prior to card
insertion. On the LMX, DIP switch settings identify the LMX's position
with respect to the LMI and RMI. DIP switch settings on the LMI and RMI
determine the binary daisy chain address, T1 line build-out, framing mode,
terminal baud, and terminal settings.
Copyright © 2003-2010 Nortel Networks. All Rights Reserved.
Nortel Communication Server 1000
Mini-Carrier Remote Fundamentals
NN43001-557 04.01 4 June 2010
Functionality 25