About the Model 7985 Standalone Termination Unit
1-3
7985-A2-GB20-00
October 1998
Network Configuration
Figure 1-1 shows a network application using a 2-port Hotwire 8786 or 8784
M/HDSL Termination Unit for access concentration in a central office (CO). A
frame relay switch and a router are connected, through the termination unit, to
partner units supporting a host or router, and frame relay encapsulated or
unframed data.
Frame
Relay
Switch
Router
E1 Host
(Frame Relay
Encapsulated
Data)
98-16131
Router
(Frame Relay
Encapsulated
Data)
EIA 530a
V.35
Router
2.048 Mb
over
SDSL
8786 or 8784
Termination Unit
in 8600 DSLAM
CO Site
7985
7985
7985
Customer
Premises (CP)
7985
Customer
Premises
NTU
CO Site
LTU
7985 (V.35)
7986 (G.703)
7984 (DSX)
V.35
EIA 530a
V.35
EIA 530a
V.35
Figure 1-1.
Sample M/HDSL Configurations
User Interface Types
There are three types of user interfaces to the Model 7985 Standalone
Termination Unit:
H
Menu-driven async terminal interface screens. See Chapter 2,
Using the
Asynchronous Terminal Interface
.
H
Front panel LED status indicators. See Chapter 4,
Monitoring the Unit
.
H
Internal DIP Switches. See Chapter 3,
Initial Startup and Configuration
.