URE's from Vol. 2 WAN Concepts
A terminal
A printer
A client
A host
A printer
A server
A client
A host
Channel Service Unit(CSU)
Digital Service Unit(DSU)
CSU/DSU
Modem
The AN/CYZ-10 Data Transfer Device(DTD)
The Secure Terminal Equipment(STE)
Secure DTD 2000 System(SDS)
The TSEC/KIV-19
The AN/CYZ-10 Data Transfer Device(DTD)
The Secure Terminal Equipment(STE)
The TSEC/KIV-7HS
The TSEC/KIV-19
12-ohm
14-ohm
22-ohm
24-ohm
Digital
DS-X
Digital and audio
DS-X and audio
Digital
DS-X
Digital and audio
DS-X and audio
Link
Circuit
Electrical
Physical
3
7
10
12
User
Circuit control office
Other systems control facilities
Regional network operations and security center
Main power panel
Power supply
Transformer
Subpanel
Inverter
Static switch
Battery banks
Rectifier/charger
Switchgear
Starting system
Distribution panel
Engine control panel
Multiple physical connection between two nodes and a link is a single logical connection
Single logical connection between two nodes and a link is a multiple physical connection
Logical connection that can consist of one or more links and a link is a single physical connection between nodes
Physical connection between two nodes and a link is a logical connection that can consist of one or more trunks
If a path to a connected node is down, traffic is automatically rerouted over other trunks
If a path to a connected node is down, traffic can be manually rerouted over other trunks
Bandwidth for a 9.6 kbps circuit is assigned to a pool and is allocated as needed
Bandwidth is assigned to a pool and is allocated to a 9.6 kbps circuit as needed
If a path to a connected node is down, traffic is automatically rerouted over other trunks
If a path to a connected node is down, traffic can be manually rerouted over other trunks
Bandwidth for a 9.6 kbps circuit is assigned to a pool and is allocated as needed
Bandwidth for a 9.6 kbps circuit is assigned toa 64 kbps channel
Dynamic bandwidth allocation
Centralized management
Transparency to users
Dynamic routing
Dynamic bandwidth allocation
Centralized management
Transparency to users
Dynamic routing
Trunk
Processor
Data
Voice
One only
Two only
One to Four
Two to Six
Switching Exchange
Processor
Memory
T-Bus
Server
Memory
Processor
Switching
16
32
64
128
CellXpress
TRK-2A
TRK-3
T-3