Daisy Chaining; Sdi Functionality; Alarms; Self-Test - Avaya Communication Server 1000M Single Group Manual

Description

Daisy chaining

LMIs may be daisy-chained together to share a single maintenance terminal and a single SDI
port. Each LMI has a DIP switch-configurable daisy-chain address. LMX and RMI status can
be determined by logging into their associated LMI.

SDI functionality

The LMI may be connected to an SDI port on the switch, providing a "host pass-through"
capability at both local and remote sites. This allows craftspeople at the remote site to have
access to the system TTY connection, and provides a single MMI/SDI terminal at the local
site.

Alarms

An alarm condition is indicated by the appropriate LMI and RMI faceplate LEDs. The cards are
also equipped with a single dry alarm contact output to indicate alarm status. A normally-closed
and a normally-open dry alarm contact point are both provided. These contacts may be
connected to customer-provided alarm-sensing equipment, if desired.
If alarms are enabled on the LMI or RMI using the ALARM ENABLE (A E) MMI command
(see ALARM ENABLE (A E)
to the LMI or RMI causes the normally-closed contact on that card to open and the normally-
open contact on that card to simultaneously close, thus activating the alarm. If alarms are
disabled at the LMI or RMI using the ALARM DISABLE (A D) MMI command (see
DISABLE (A D)
alarm relay will not change states.
Note:
The ALARM DISABLE (A D) command may be used to return the dry alarm contacts to
their relaxed state during an active alarm so that the only alarm notification will be the
faceplate LEDs, thus allowing craftspeople time to locate the cause of an active alarm
without a constant siren, horn, or other audible alarm notification.

Self-Test

The self-test checks all RAM, read/write locations, ASICS, and performs a complete T1 local
relay loopback using the onboard test clock. A successful self-test is indicated by the faceplate
LEDs flashing three times. The board will not go into service until the entire self-test passes.
30 Mini-Carrier Remote Fundamentals
on page 76), an alarm state on any Mini-Carrier card connected
on page 77), an alarm state will be indicated by the faceplate LEDs, but the
Comments? infodev@avaya.com
ALARM
March 2013