Avaya S8700 - Page 1397

DS1-FAC (DS1 Facility)
Issue 1 May 2002
8-675555-233-143
Figure 8-25. DS1 Facility Connections
Figure 8-26. Typical CSU Maintenance Capabilities
DS1CONV
B
CPE CPE
CSU
A
CSU
BA
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
Self Test
Switch
Signal In
Signal In
DS1 Facility Side
CSU
CPE Side
LOS LED
DS1 Facility
Side LOS
LED
Signal Out
Signal Out
CPE Side