IE-iMcV-T1-Mux/4+Ethernet
16
ALARM CONDITIONS
•
Last gasp (remote lost power)
•
T1 Port Up
•
T1 Port LOS
•
Fiber port Up / LOS
•
SFP removed/installed
•
Service state change
LOOPBACK
Each T1 port can be tested in loopback mode by enabling either a Host loopback
or Remote loopback test path. This capability allows the end-user to help
troubleshoot and isolate system problems such as improper/broken line
terminations, cables or malfunctioning equipment.
With Host loopback, the T1 copper port, connected to the Host unit, is looped
back to that port within the local unit. T1 data coming from the remote unit to that
port over the optical link is also looped back to the remote unit at the same point
within the local unit.
With remote loopback, a T1 line connected to the Host unit is transported onto
the optical link and looped back within the remote unit back onto the optical link
without passing onto the copper T1 line of the remote unit. The remote’s
incoming T1 copper line is also looped back to the copper line within the remote
unit. The default value for loopback is "none."
T1 Mux HOST
T1 Mux REMOTE
T1
HOST
Loopback
Remote
Loopback
T1
Fiber
Copper
Fiber
Copper
Fiber