Verilink XEL XSP-100 SHARK IAP (9SA-USRS-9.0R1.02) Product Manual - Manual (Page 195)

Chapter 8- Maintenance/Diagnostics/Monitoring
SHARK™ IAD User's Guide XEL P/N & Release: 9SA-USRS-9.0R1.02 Chapter 8-11
T1 interface
9SA-T100-000 or 9SA-XC2T-V01
Cross Connect
LIU Framer
Jitter
Attn
Framer Loop Back
WAN or
LAN
T1 interface
9SA-T100-000 or 9SA-XC2T-V01
Cross Connect
LIU Framer
Jitter
Attn
Local Loop Back
WAN or
LAN
T1 interface
9SA-T100-000 or 9SA-XC2T-V01
Cross Connect
LIU Framer
Jitter
Attn
Remote Loop Back and codes NI, CSU, FDL Line, and FDL Network
WAN or
LAN
T1 interface
9SA-T100-000 or 9SA-XC2T-V01
Cross Connect
LIU Framer
Jitter
Attn
Payload Loop Back and code FDL Payload
WAN or
LAN
Figure 8: SHARK™ IAD T1 Loopbacks