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Chapter 3 Installation
42 Avaya M770 M-ACCF/SF ATM Access Modules User’s Guide
Post-Installation Checks
Figure 3.2 shows M-ACC front panel with its LEDs, switches and connectors
(described in Table 3.2).
When you insert an M-ACC ATM Access module into the Avaya M770 chassis or
after a reset, there is a Startup sequence which takes about 30 seconds before the
ATM lights ON.
Figure 3.2 LED Indications for the M-ACC ATM Access Module
Note: All LEDs are lit during a reset.
Table 3.2 M-ACC LEDs Descriptions
LED Name Description LED Status
OPR
Module
Operational
Status
ON – Module is OK
OFF – Module is not operational
Blink – Module is not connected to DomainX or
DRU overflow problem
ATM
Status of ATM
Entity (CPU)
ON – ATM CPU OK, Built-In Test OK
OFF – Fail
LNK Port Status
OFF – Port is disabled
ON – A link is present on the ATM port
Blink – Port enabled and the link is down
Tx
Transmit to
Line
OFF – The ATM port is not transmitting cells
ON – The ATM port is transmitting data cells
Rx
Receive from
Line
OFF – No receive activity
ON – The ATM port is receiving data cells
OC12 High Speed OFF: OC-3c
ON: OC-12c