3 linking pakbus nodes: neighbor discovery – Campbell Scientific CR1000 Measurement and Control System User Manual
Page 353

Section 8. Operation
353
Table 84. PakBus Leaf-Node and Router Device Configuration
Network
Device
Description
PakBus
Leaf Node
PakBus
Router
PakBus
Aware
Transparent
network link
1
NL120
Peripheral port
network link
1
•
NL200
Serial port
network link
NL240
Wireless
network link
MD485 Multidrop
•
•
RF401,
RF430,
RF450
Radio • • •
CC640 Camera
•
SC105 Serial
interface
•
SC32B Serial
interface
•
SC932A Serial
interface
•
COM220
Telephone
modem
•
COM310
Telephone
modem
•
SRM-5A
Short-haul
modem
•
1
This network link is not compatible with CR800 datalogger.
8.5.3 Linking PakBus Nodes: Neighbor Discovery
New terms (see Nodes: Leaf Nodes and Routers
(p. 351)
):
• node
• link
• neighbor
• neighbor-filters
• hello
• hello-exchange
• hello-message
• hello-request
• CVI
• beacon
To form a network, nodes must establish links with neighbors (neighbors are
adjacent nodes). Links are established through a process called discovery.