61200305L1-1 ATLAS 550 User Manual E-1
Appendix E
Troubleshooting
Modules seated improperly, module failure
Remove all modules and cycle power to the unit. If self test still fails, call
Technical Support and report the results. Ifthe self test now passes, re-insert
modules one at a time, running the self test after installing each module.
When an installed module causes the self test to fail, note it and report re-
sults to Technical Support (see last page of this manual).
Selected Timing Source is not present or clock is out of toler-
ance
• Verify that system timing is correctly configured for the desired clock.
• Verify that the interface cable to clock source is present.
• Temporarily configure the system to operate off of internal timing. Ver-
ifythatthesystemcanlocktothisclock.
Max Telnet sessions set to 0, IP address of ATLAS 550 does not
match remote host IP address
• Verify that the Ethernet connection is in place, check IP addresses pro-
grammed in ATLAS 550 and in the Telnet client, verify that session time-
outvalueisnotsettoolow.
• Verify the link is up via the Ethernet LED.
Power-up Self Test Fails
System Timing Source Unlocked
(Displayed on Terminal Interface, “System Status”)
Cannot establish Telnet session with ATLAS 550
