User`s guide

8
Figure 3. L4490A and L4491A Internal Configuration and Typical Connections
Agilent L4491A
LAN
hub/switch
Cable p/n 5061-0701
* = standard LAN cables
LAN cross-over cables for direct PC –
L4490A/L4491A connection if PC is non Auto-MDIX
Master 34945EXT connects to 1
st
slave
through Expansion Port 1. Expansion ports
on slaves are interchangeable.
External power supply required for all slave
34945EXT modules EXTERNAL to the L4490A/L4491A.
EXTERNAL
POWER INPUT
30 VDC MAX
Up to seven slave 34945EXT modules per L4490A or L4491A
+24 V supplied
from L4491A
+24 V supplied
from L4491A
+24 V supplied
from L4490A
34945EXT #1
(master)
Agilent L4490A
34945EXT #1
(master)
L4491A Option 002
34945EXT #2
1
st
slave
+V
I/O interfaces:
LAN
GPIB (optional)
*
*
*
or