Avaya M-ACCF/SF manual Post-Installation Checks, M-ACC LEDs Descriptions

Chapter 3 Installation

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.
Table 3.2 M-ACC LEDs Descriptions
LED Name	Description	LED Status
		ON – Module is OK
	Module	OFF – Module is not operational
OPR	Operational
		Blink – Module is not connected to DomainX or
	Status
		DRU overflow problem
ATM	Status of ATM	ON – ATM CPU OK, Built-In Test OK
	Entity (CPU)	OFF – Fail
		OFF – Port is disabled
LNK	Port Status	ON – A link is present on the ATM port
		Blink – Port enabled and the link is down
Tx	Transmit to	OFF – The ATM port is not transmitting cells
	Line	ON – The ATM port is transmitting data cells
Rx	Receive from	OFF – No receive activity
	Line	ON – The ATM port is receiving data cells
OC12	High Speed	OFF:	OC-3c
		ON:	OC-12c
Figure 3.2 LED Indications for the M-ACC ATM Access Module
Note: All LEDs are lit during a reset.
42	Avaya M770 M-ACCF/SF ATM Access Modules User’s Guide