User manual

Wide Bank 28 DS3 - Release 2.4 33
Diagnostics
Self-Test Diagrams
LS = low speed card (DS1 or E1). HS = high speed controller card (DS3).
T3 Self-Test
T1/E1 Self-Test
Perform
Self-Test
Send AIS
Relays
Trans-
ceiver
Selector
M13
Framer
Trans-
ceiver
Relays
LS Card HS Card
Toward DS3
DS1/E1 DS3
Send AIS
Toward DS1/E1
Perform
Self-Test
Send AIS
Relays
Trans-
ceiver
Selector
M13
Framer
Trans-
ceiver
Relays
LS Card HS Card
Toward DS1/E1
DS1/E1 DS3
Send AIS
Toward DS3
AIS only on
Tested Circuit