8 Communications
Example network configurations
Agilent 990 Micro GC User Manual 117
Example network configurations
Peer-to-peer
A peer-to-peer network (See Figure 50) is required to assign or change the IP address of a Micro
GC. It can also be used when no network is required or available. The cable(s) used for
peer-to-peer connections depend on the installed main board.
• For a Micro GC with main board installed, either a crossover cable (CP740292) or a regular
(noncrossed) patch cable can be used.
Peer-to-peer communication requires IP addresses in the same subnet range for the computer
and the Micro GC.
After assigning or changing the IP address of a Micro GC, you can remove the connection cable
and connect the computer and Micro GC to a local network using normal cabling. See Rear
View on page 19.
Figure 50. Peer-to-peer (single instrument)
Data system PC
Any IP a
ddress allowed
Crossover cable or
regular patch cable
Micro GC
with mainboard
Single 990 connected to a local
workstation. IP address in the same
subnet range as the computer
subnet range.