DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1429SNI-BD (SNI Circuit Pack)
9
Remote EPNs
A DS1 converter complex can used to provide connectivity to a remotely located
port network. The DS1 converter complex consists of two TN574 DS1 converter
(DS1C) circuit packs connected by 1 to 4 DS1 facilities. The DS1C complex is
administered as a fiber link.
Figure 9-86. Fiber Link over a DS1 Converter Complex
SNI LEDs
The SNI circuit pack has red, green and yellow LEDs. The red and green LEDs
have the usual meaning, with red signifying an on-board alarm, and green
signifying maintenance testing in progress. The red and green LEDs will come on
and then turn off when the circuit pack is reset.
NOTE:
If the red LED is on without any alarms active against the circuit pack,
replace the SNI circuit pack. This indicates that SNI firmware has detected
a fault and is unable to notify software.
metallic connection
or
optical fiber
metallic connection
or
optical fiber
1 to 4 DS1 Facilities
TN570 TN574 TN574 TN573
SNI
DS1C DS1C EI
