HP 1670A Series - Verify the Logic Analyzer Performance

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Troubleshooting

Verify

the

logic

analyzer

performance

Verify the logic analyzer perl'ormance

The logic analyzer performance verification (self-test) is divided into two

sections. The first section

tests

the physical connections such as

the

cable

and

termination. The second section tests

the

internal functions of

the

LAN

interface. When both sections of the self-test have finished, a status message

appears in

the

LAN

Test

field. The status message indicates whether

the

test

passed, if a failure occurred,

and

which section failed.

The physical connection

test

depends on the

LAN

topology used.

ThinLAN

is used, then a

test

transmission signal is transmitted over the

LAN.

a reply

is received,

then

the

physical connection is considered good.

EtherTwist

OBase-T) is used,

then

the

logic analyzer will listen for

the

heartbeat signal

from

the

LAN.

heartbeat

is received,

then

the

physical connection is

considered good.

The second section

tested

using internal loop back features of

the

LAN

hardware. Transmitted packets are looped back to

the

receive circuit of

the

LAN

board. When

the

looped-back packets are received, they are processed

like a packet received from a remote client or server.

the

looped-back

packet

recognized

and

processed, then

the

LAN

board

and

the

LAN

software are considered good.

Perform

the

following check before beginning

the

procedure.

D Check all network cables

and

connectors. Verify

that

all cables are

properly connected.

7-14

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HP 1670A Series - Verify the Logic Analyzer Performance

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