6-16 Encore Multi-port DSU/CSU User GuideÑJuly, 1997
6
The DSU/CSU does not Power Up
¥ Make sure the DSU/CSU is plugged in to a live AC outlet, if it is AC powered. If it
is DC powered, make sure the respective DC leads are not crossed.
Table 6-4 Troubleshooting Multi-port Problems
Problem Description and Location
The DSU/CSU does not Power Up on page 6-16
The DSU/CSU System does not Dial Out when an Alarm Occurs on page 6-17
There is no FDL Communication with the Remote/far End System on page 6-17
The ESF User Registers do not Clear from the Network Carrier on page 6-17
Current Tests Terminate without your Intervention on page 6-18
The System Cannot be put into Network Loopback from the Carrier on page 6-18
The System cannot be Put into Payload Loopback from the Network on page 6-18
The NET LED does not Illuminate on page 6-19
The NET LED is Constantly Red on page 6-19
The NET LED Remains Constant Amber/yellow on page 6-19
The NET LED Flickers Intermittently between Red, Amber, and Green on page 6-20
The Data Port TD/RD LEDs do not Illuminate on page 6-20
The Data Port RTS/CTS LEDs do not Illuminate on page 6-21
The DTE Device Shows Intermittent Errors on page 6-21
LEDs do not Illuminate on page 6-22
After Powerup, the Menu Clock no Longer Shows Correct Time or Date on page 6-22
Comments to this Manuals