CTI Products EXB Network Manager - Manual (Page 8)

Hot-Standby EXB / Network Manager Software Manual Hot Standby
CTI Products, Inc. EXB Operation
4
68-11707-100
2. Hot-Standby EXB Operation
2.1 Definitions
EXB Channel Everything required to implement a
Hot-Standby EXB Link, including:
-Central Main EXB
-Central Standby EXB
-(2) Remote EXB
-Main & Standby WAN Lines
-Central MCN Tie Line
-Remote MCN Tie Line
Central Site The location of the MCNRCD PCs
and the EXB Network Manager PC.
This is the site receiving the data from the remote CIBs.
Central EXB One of the EXB modules at the central site
(where the MCNRCD PCs and the Network
Management PC are)
Central EXBs are sometimes referred to as "Network
EXBs" since they are tied to the MCN network
backbone at the MCNRCD location.
Main EXB This is the Central EXB that normally passes traffic.
Standby EXB This is the Central EXB that is normally in the Standby
mode. It only passes traffic when a fault is detected.
Remote Site This is the location of the CIB modules that are sending
their data through the EXB Channel.
Remote EXBs One of the EXB modules at the Remote Site. These
may be referred to as the "Remote Main" or "Remote
Standby" EXB to identify which WAN line it is
connected to.
They are also sometimes called "Group EXBs" or "CIB
EXBs" since they are associated with CIB modules in a
particular MCN group.
WAN Line This is the connection between the Central Site and the
Remote Site. There will be a Main Line and a Standby
Line. These lines may be analog (leased telephone
lines) or Serial Asynchronous (RS-232) lines,
depending upon what type of EXB modules are used.