Troubleshooting External Device Connection
Last updated: September 2, 2009
Description
-
When connecting two 8960s, it is recommended that you connect them via a hub (using the LAN 1 PORT and LAN 2 PORT on both 8960s), rather than through a gateway or WAN link, or connect them directly using a LAN crossover cable. This helps minimize the risk of lost data due to delayed packets.
-
Before initiating an external device connection between two 8960s, you can verify that the two test sets are able to communicate by pinging one test set from the other. To do so, on 8960 #1:
-
Press the
Call Setup
key, then the left
More
key until the
Ping
menu is available.
-
Select
Ping
, then
Ping Setup
(
F1
).
-
Set
Device to Ping
to
Alternate
(
CALL:DATA:PING:SETup:DEVice
).
-
Set the
Alternate Ping Address
to the IP address of 8960 #2 (
CALL:DATA:PING:SETup:ALTernate:IP:ADDRess
).
-
Select
Start Ping
(
F3
) (
CALL:DATA:PING:STARt
).
-
When you select
Connect to External 8960
, if the
External Device Conn Status
moves from
Not Connected
through several other states (
Connecting/
Connected
/Disconnecting
) and then immediately back to
Not Connected
, check both 8960s for an error condition. The 8960 to which you are attempting to connect may not have the hardware or license required for the
External Device Connection
feature, or may have incompatible firmware. (The underlying architecture of the
External Device Connection
feature has changed over time. The implementations are not compatible. To establish an
External Device Connection
between two test sets, the test sets must have compatible firmware (see www.agilent.com/find/8960upgrades for more information)).
-
Ensure that
Ext 8960 IP Addr
on the 8960 originating the connection is equal to the
LAN IP Address
of the 8960 you wish to connect to (the
LAN IP Address
of each 8960 is shown in the
LAN Connection Information
window of the
External Device Connection Setup
screen as
LAN (Self) IP Address
, and also viewable/settable from the
Instrument Setup
(
F1
) menu of the
System Config
screen).
-
Ensure that
Subnet Mask
and
Default Gateway
are configured properly for each test set.
-
Ext 8960 IP Addr
and
Connected Device IP Address
will always be equal on the display of the test set that initiated the external device connection. However,
Ext 8960 IP Addr
and
Connected Device IP Address
can be different on the test set that was connected to, as
Ext 8960 IP Addr
is only used when initiating an external device connection.
-
Ext 8960 IP Addr
can not be set to the same value as
LAN IP Address
or
DUT IP Address
. If
LAN IP Address
is set to the value of
Ext 8960 IP Addr
,
Ext 8960 IP Addr
is reset to a blank field.
-
The external device connection is not affected by a partial preset. However, the external device connection is disconnected as a result of a full preset.
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