Lucent Technologies LambdaUnite Installation Manual page 349

Revertive Switching
In revertive switching, there is a working and protection high-speed line, circuit pack, etc.
When a protection switch occurs, the protection line, circuit pack, etc. is selected. When the
fault clears, service "reverts" to the working line.
Ring
A configuration of nodes comprised of network elements connected in a circular fashion. Under
normal conditions, each node is interconnected with its neighbor and includes capacity for
transmission in either direction between adjacent nodes. Path switched rings use a head-end
bridge and tail-end switch. Line switched rings actively reroute traffic over the protection
capacity.
Route
A series of contiguous digital sections.
Router
An interface between two networks. While routers are like bridges, they work differently.
Routers provide more functionality than bridges. For example, they can find the best route
between any two networks, even if there are several different networks in between. Routers also
provide network management capabilities such as load balancing, partitioning of the network,
and trouble-shooting.
RSOH
Regenerator Section OverHead; part of SOH
RST
Regenerator Section Termination
RT
Remote Terminal
RT/LB
Right Top/Left Bottom
RTRV
Retrieve
Rx
Receive/IN
RZ (Return to Zero)
A code form having two information states (termed zero and one) and having a third state or an
at-rest condition to which the signal returns during each period.
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365-374-059
Issue a, January 2002
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