User`s guide

Set Up Your System 3
Agilent E6474A User’s Guide 55
Computer Connections
1 Connect the free end of the USB cable (E6473-60010) to the
USB port of the computer.
2 If equipped, connect the power cable from the computer to
the 4-to-1 lighter socket adapter.
Connecting Two Direct Connect Hub-Systems
If your system includes two Direct Connect Hub units, connect
them together as follows:
1 Connect the USB cable (E6473-60005) to the (USB
Downstream) port on the front panel of the Direct Connect
Hub connected to the computer.
2 Connect the opposite end of the cable to the (USB
Upstream) port on the front panel of the second Direct
Connect Hub.
3 If programmed, insert the software license key into the
(USB Downstream) port on the front panel of any
available USB Downstream. Otherwise, plug the DB25 key
into the parallel port of the computer.
Phones
The phone cable set includes a 3 foot (approx. one meter) phone
interface cable, a 15 foot (aaprox. 4.5 meters) extender cable
(E6473-60042), and a 9-to-26 pin adapter, that allows the phone
cable to be plugged into a Serial port of the computer for a
“direct connect” configuration (see To a Computer Serial Port
below).
Direct Connect Hub Connections
CAUTION
To prevent damage to the Direct Connect Hub or phone, always power
the Direct Connect Hub off before connecting or disconnecting a
phone.