DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance for csi systems
1-90Multimedia Call Handling
1

Power Supply LEDs

Table 1-9 shows the LED and alarm conditi ons for the 650A Power Supply. Ring
voltage and neon bus outp ut do not activate alar m status.
Multimedia Call Handling
‘‘Expansion Services Module’’
‘‘Troubleshooting MMCH’’

Expansion Services Module

The Expansion Servi ces Module (E SM) shown in Figure 1-27 provides T.120 data
sharing capab ility on a MMCH multipoint H.320 vid eo conference. Each
conference partic ipant must have endp oints administered and a personal
computer with the H.320 video application installed . The DEFINITY ECS must
have the expansion service mod ule installed.
Table 1-9. LED and Alarm Conditions
Condition LED Status Alarm State Fan Alarm
Normal Red off;
Yellow on Open Normal
No input power Red off;
Yellow off Closed No input power
DC output not present
(except Neon) Red on;
Yellow off Closed DC output not present
(except Neon)
Fan alarm Red on ;
Yellow on Closed Fan alarm