ATLAS 550 System Manual Section 2, Engineering Guidelines
61200305L1-1F © 2002 ADTRAN, Inc. 25
1. EQUIPMENT DIMENSIONS
The ATLAS 550 base unit is 17.08” W, 11.67” D, and 3.47” H. All other equipment (option modules) fit
inside the base unit.
2. POWER REQUIREMENTS
The ATLAS 550 has a maximum power consumption of 60 W and a maximum current draw of 2 A (AC
System) or 5 A (DC System) regardless of the configuration of option modules installed in the base unit.
3. REVIEWING THE FRONT PANEL DESIGN
The front panel contains the Alarm Cut-off (ACO) switch, the CRAFT port, and the controller and module
status LEDs. The LEDs provide visual information about the ATLAS 550 base unit and any option module
that may be installed. Figure 1 identifies the ACO switch, the CRAFT port, and the LEDs.
Figure 1. ATLAS 550 Front Panel Layout
ACO Switch
The ACO switch deactivates (clears) the Alarm Relay, located on the rear panel of the ATLAS 550, after an
alarm condition has occurred. If an alarm condition is corrected and then reoccurs, the Alarm Relay will
re-energize.
POWER
REMOTE
ERROR
TEST
OK
TEST
ONLINE
STATUS
ERROR
TEST
OK
CRAFT
ACO
ALARM ALARM
1 2
NETWORK
1 2 3 4
MODULES
SYSTEM
ETHERNET
ATLAS 550
Module Status LEDsCRAFT
Port
Alarm
Cut-off
Switch
Controller
Status
LEDs
Network Module
Status LEDs Option Module
Slot Numbers