Specifications

Total Access 600 Series System Manual Section 2 Engineering Guidelines
61200624L1-1A © 2002 ADTRAN, Inc. 27
Front Panel LEDs
The front panel provides eight status LEDs to monitor operation and activity. The LED functionality varies
based on product and software load (TDM vs ATM). The following tables provide LED activity
explanations for the various combinations.
Table 2. Total Access 604/608 TDM Front Panel LEDs
For these LEDs... This color light... Indicates that...
TX/RX Off There is no data traffic on the LAN.
Green (blinking) There is data traffic on the LAN.
LINK Off The physical link is down, there is no Ethernet
connection.
Green (solid) There is link integrity on the LAN (physical link is up).
V.35 RX Off No data traffic is being received on the V.35.
Green (blinking) Data is being received on the V.35.
V.35 TX Off No data traffic is being transmitted on the V.35.
Green (blinking) Data is being transmitted on the V.35.
DATA Red (solid) The T1 is in red alarm or T1 sync loss has occurred.
Yellow (solid) The T1 is in test.
Green (solid) Layer 2 is up.
VOICE Off The T1 is down.
Green (blinking) The phone is off hook.
Green (solid) The T1 is up and the phone is on hook.
BATT Off AC has failed and no battery.
Green (solid) AC is operational and battery is good.
Red/Green
(alternating)
AC is operational and battery is bad.
Amber (solid) AC has failed and the battery is good.
Red/Amber
(alternating)
AC has failed and the battery is bad.
PWR NET Green (solid) Layer 1 is up.
Green (blinking) Layer 1 is not up.