Operation Manual

DTX-1500 CableAnalyzer

Users Manual

Twisted Pair Test Settings

Table 2 describes the settings that apply to twisted pair

cabling tests.

To access the settings, turn the rotary switch to SETUP, use

 to highlight Twisted Pair; then press .

Table 2. Twisted Pair Test Settings

Setting Description

Select the appropriate test limit for the job. Selecting Cu

stom lets you create a test limit. See the

Technical Reference Handbook for details.

Select a cable type appropriate for the type you will test. The cable types are organized by type and

manufacturer. Selecting Custom lets you create a cable type. See the Technical Reference Handbook

for details.

Nominal velocity of propagation, which is used with the measured propagation delay to determine

cable length. The default value defined by the selected cable type represents the typical NVP for that

cable type. You may enter a different value if necessary. To determine the actual value, change the

NVP until the measured length matches the known length of a cable. Use a cable at least 30 m

(100 ft) long.

Increasing the NVP increases measured length.

The Outlet Config

uration setting determines which cable pairs are tested and which pair numbers

are assigned to the pairs. See Figure 10. To see the wire map for a configuration, press

 Sample

from the Outl

et Configuration screen. Selecting “Custom” lets you create a configuration. See the

Technical Reference Handbook for details.

-continued-

SETUP > Twisted

Pair > Test Limit

SETUP > Twisted

Pair > Cable

Typ e

SETUP > Twisted

Pair > NVP

SETUP > Twisted

Pair > Out

let

Configuration