Section 2, Engineering Guidelines ATLAS 550 System Manual
26 © 2002 ADTRAN, Inc. 61200305L1-1F
CRAFT Port

Use the CRAFT port to configure the system via an EIA-232 connection. The CRAFT port provides the

same functions and operations as the CONTROL IN port located on the rear panel of the ATLAS 550. The

connector type is shown below, and Table 1 gives the CRAFT port pinout.

Front Panel LEDs

With the ATLAS 550 powered-up, the front panel LEDs provide visual information about the status of the

ATLAS 550 and any option modules that may be installed. Table 2 provides a brief description of the front

panel features, and Table 3 on page 27 provides detailed information about the LEDs.

Connector type RJ-48C
Table 1. CRAFT Port Pinout
PIN NAME DESCRIPTION
1 GND Ground - connected to unit chassis
2 RTS Request to send - flow control
3 RXDATA Data received by the ATLAS 550
4 DTR Data terminal ready
5 TXDATA Data transmitted by the ATLAS 550
6 CD Carrier detect
7 UNUSED —
8 CTS Clear to send - flow control
Table 2. ATLAS 550 Front Panel Description
Feature Description
Controller Status LEDs Displays the general status of the entire ATLAS 550. (See Table 3 on page 27.)
Power Indicates the unit is on or off.
System Indicates the status of the system.
Ethernet Indicates the status of the Ethernet port.
Remote Indicates whether a user is logged into the unit.
Network Module LEDs Displays the status of the network interface. (See Table 3 on page 27.) All
LEDs are off if no network module is installed.
OK Indicates that the network interface is operating correctly.
Test Indicates that the network interface is in test mode.
Error Blinks to indicate the occurrence of error events.
Alarm Indicates an alarm condition on the network interface.