Installation guide
Setting up a LAN Instrument Network  8 
Instruments on the LAN 
Each LAN instrument requires a unique IP address on the same 
subnet as the ChemStation PC to work correctly on the network. 
There are two types of instruments that can be added to either the 
local or site LAN. The first type of instrument allows the IP address 
to be entered directly at the GC. The second type of instrument 
requires the IP address to be assigned using either Agilent BootP or 
Telnet. For specific information on the IP addressing mode for your 
instrument refer to Instrument Firmware Requirements on page 9. 
Instruments that allow entering IP address at the GC 
If you have a 7890A, 7820A, 6890N, or 6850 Series (SN 
≥ US10243001) GC you enter the IP address directly at the GC or at 
the software keypad. 
•  To enter the IP address to a 7890A GC refer to the section 
Setting the IP address for a 7890A GC on page 10). 
•  To enter the IP address to a 7820A GC refer to the section 
Setting the 7820A IP Address from software keypad on page 11). 
•  To enter the IP address to a 6890N GC refer to the section 
Setting the IP address for a 6890N GC on page 10). 
•  To enter the IP address to the 6850 Series GC (SN 
≥ US10243001) refer to the section Setting the IP address for a 
6850 GC on page 11). 
Instruments that require Telnet or BootP to assign IP address 
If you have a 6890A, 6890 Plus, 6850 Series GC (SN≤US00003200), 
or 35900E your instrument uses an installed Jet Direct card to work 
on the network. The 6890 LAN kit (G2335A) needs to be ordered 
from Agilent if a card cage is not installed on the 6890 GC. The kit 
comes with a card cage and G1369A Jet Direct Card. 
G1369A/B and J4100A cards that stores IP address 
With the G1369A/B and J4100A cards you can enter the IP address 
for the above instruments using Telnet (See Assigning IP addresses 
permanently with Telnet on page 16) or Agilent BootP (See Storing 
Settings Permanently with Bootp Program on page 16). 
J2552A/B card requires BootP to be running when power cycling GC 
If you have a J2552A/B card, after setting the IP address, you must 
run BootP when power cycling the GC, since the LAN address is 
volatile. It is highly recommended that you replace this card with a 
G1369B. 










