DSP-100/2000

Users Manual

Single Test Results for Coaxial Cable

The Single Test results for coaxial cable are identical to those displayed by an Autotest, with exceptions noted as follows.

Impedance

Identical to Autotest version. See “Impedance” in Chapter 3 for details.

Resistance

Identical to Autotest version. See “Resistance” in Chapter 3 for details. The Single Test version of the resistance test includes the scanning function.

Length

Identical to Autotest version. See “Length” in Chapter 3 for details.

TDR for Coaxial Cable

The TDR test is described for both twisted pair and coaxial cable in the earlier section “The TDR Test.”

Monitoring Network Activity

The MONITOR mode on the rotary switch allows you to monitor Ethernet traffic for collisions, jabber, peak traffic and percentage of network utilization. You can monitor traffic on 10BaseT twisted pair or 10Base2 coaxial cable. Model DSP- 2000 can monitor traffic on 10/100BaseTX cable as well.

This feature allows you to identify active cables and provides some information on network activity. If you want to troubleshoot active networks, contact your Fluke representative for information on LAN diagnostic tools.

When connected to a network, the test tool automatically generates link pulses to activate the hub. Model DSP-2000 uses Auto-Negotiation when attempting to link to monitor 10/100BaseTX traffic. If a link state with the hub does not occur, the test tool displays the warning message NO LINK PULSE.

To monitor network traffic on a twisted pair or coaxial Ethernet network, refer to Figure 4-5 and proceed as follows:

4-16

Page 92
Image 92
Fluke DSP-2000, DSP-100 user manual Monitoring Network Activity, Single Test Results for Coaxial Cable