Specifications
Table Of Contents
- Introduction
- Installation Procedures
- Commissioning Procedures
- Troubleshooting Procedures
- Overview
- Checking for Good Wire Runs
- Checking for Proper Termination
- Checking the End-of-Line Device Settings
- Checking for Proper Channel Selection
- Checking the N2 Device
- Checking the Number of Defined N2€Devices
- Checking the Length of N2€Bus
- Checking for “T” or “Y” Connections
- Checking for a Ground Loop
- Checking the Repeater
- Checking the Surge Protector
- Checking the Communication Terminal Board
- Checking Communication Faults
- Ordering Instructions
20
Network Communications—N2 Communications Bus
Figure 6 shows a repeater lengthening the N2 Bus. The configuration has
two segments.
N2 Bus
Operator Workstation
5-slot NCU
1-slot NEU
N2
EOL
Out
Operator Workstation
Repeater
Side A=N2 EOL In
Side B=N2 EOL In
1-slot NEU
EOL
Out
ASC
(ILC Shown)
EOL
Out
2-slot NEU
One
EOL
In
N1
EOL
In
N1
EOL
In
N1
EOL
Out
NCM's
N2
EOL
In
A
B
N1 LAN
LAYOUT3
Figure 6: N2 Bus Layout with a Repeater