4-1
7520-A2-GB20-20
May 1998
Monitoring the DSU
4
What to Monitor
This chapter presents information on how to access and monitor DSU status and
performance statistics on the DDS network. You can monitor DSU operations by
viewing:
System and Test Status screen
Highest priority Health and Status message on the last line of all screens
Network Interface Status screen
Network Performance Statistics screen
LEDs on the ATI Status screen or the DSU’s front panel
Table 4-1 shows the available indicators of alarm conditions on the network
interface and the User Data port.
Table 4-1.
Alarm Indicator Locations
Alarm Condition
Status
Screen
Specific
LED
Crossed Pairs
Y
N
No Signal (NS)
Y
Y
Out of Service (OOS)
Y
Y
Out of Frame (OOF)
Y
Y
Excessive Bipolar Violations (BPV)
Y
N
Summary of Contents for 7520
Page 1: ...MODEL 7520 DSU USER S GUIDE Document No 7520 A2 GB20 20 May 1998...
Page 6: ...Contents iv 7520 A2 GB20 20 May 1998 This page intentionally left blank...
Page 24: ...Customizing the DSU 3 4 7520 A2 GB20 20 May 1998 This page intentionally left blank...
Page 36: ...Monitoring the DSU 4 12 7520 A2 GB20 20 May 1998 This page intentionally left blank...