Avaya 03-300430 User Manual
Communication Manager Maintenance-Object Repair Procedures
1068 Maintenance Procedures for Avaya Communication Manager 3.0, Media Gateways and Servers
Figure 51: DS1 Facility Connections
Figure 52: Typical CSU Maintenance Capabilities
DS1CONV
B
CPE CPE
CSU
A
CSU
B
A
DS1CONV
Network/DS1 Facility
Network Interface at CSU
Network Interface at Cross Connect Field
T
R
T1
R1
T
R
T1
R1
CPE
Network/DS1 Facility
Cross
Connect
Field
DS1CONV
R1
T1
R
T
CSU
CPE Loopback
Switch
Switch
Self Test
Switch
Switch
Signal In
Signal In
DS1 Facility Side
CSU
CPE Side
LOS LED
LOS LED
DS1 Facility
Side LOS
LED
Signal Out
Signal Out
CPE Side