Kurth Electronic KE401 IT Especificações descarregar pdf (Página 3)

USER MANUAL

KE301 - KE401 - KE501 - KE701 / 702

Stand 07/10 - Druckfehler, Irrtümer und technische Änderungen vorbehalten. Alle eingetragenen Warenzeichen und Marken sind, auch wenn nicht ausdrücklich gekennzeichnet, Eigentum der jeweiligen Inhaber.

07/10 Product design and specifications subject to change without notice. All trademarks belong to their respective companies.

Probe 310/410 (Non-contact tone receiver)

The PROBE is a receiver and amplifier that detects tracing signals from senders like the EasyTest and makes them audible over the built-in speaker. The green signal

level LED lights when the key 1 kHz tone from EasyTest is detected among the signals on line. Interfering signals such as 50 Hz power hum and its harmonics will not

trigger the green LED. The Probe 410 has a second, red LED that lights when an ISDN Basic Rate signal is detected. This allows an active ISDN BRI (UK0) line to be

detected in places like distribution boxes.

US Version of Probe KE310: Green signal level LED detect Frequency 577.5 Hz, rather than 1 kHz.

A flashlight function with a pure white light allows the identifying colors of the wires to be seen clearly in dark distribution boxes. The test tip of the PROBE consists of

fiber-reinforced conductive plastic with a secure bayonet lock that allows easy on-site exchange without opening the unit. At the rear end of the PROBE there is a

connection socket for an optional earphone (item no. 49600). The Probe is turned on by pressing the High or Low buttons. The High position is the most sensitive level

for tracing weak signals. Low position is used to identify the specific pair or wire needed.

EasyTest 300 - 720 (tone generator and line tester)

Maximum withstand voltage – not for test use:

CONT MODE (resistance test) 240V AC - All devices

TONE MODE (tracing tone) 120V AC - KE3xx, KE4xx 500V AC - KE5xx, KE7xx

The EasyTest is turned on and off by pressing the ON/OFF button.

After pressing the ON/OFF button, an audible tone is emitted to confirm that the device has been turned on (only the KE7xx), and the ALT and SOLID LEDs light

briefly. For all other versions, the LEDs depend on the position of the three-position sliding switch:

TONE = ALT LED flashes

DATA = Data LED shines weak green

CONT = CONT LED flashes briefly

The EasyTest automatically shuts off after 30 minutes. To disable auto shut-off, press the ON/OFF button twice within one second after the device is turned on. A short

confirmation tone (only KE7xx) will sound to indicate that the timeout override mode was activated. In addition, the SOLID LED flashes briefly. If you are in the SOLID

tone mode, it is the ALT LED that flashes briefly. To Shut the Unit Off: Press the ON/OFF button for more than 1.5 seconds. The shut-off tone sounds (only KE7xx), the

ALT and SOLID LEDs light briefly, and the unit turns off.

Quick display of the status of analog telephone lines, testing for voltage on digital lines or alarm system wires, and much more. the status of analog telephone lines is

easily checked by turning on the EasyTest and inserting it into wall jack. This is easily done, , using the RJ11 connector (not included with the KE5xx) though it can

also be done using the optional TAE adapter, breakout adapter or by simply clipping the device onto the wires using alligator clips. Idle telephone lines have voltages

up to 70V DC, and the POL LED shines brightly when the tester is connected. Red indicates a/b (T/R) inverted, green indicates correct polarity, i.e., a-wire, ring or

negative on the red terminal. EasyTest indicates with the red warning LED when the voltage on the line is greater than 90V. This information can also be used to

identify the voltage at the ISDN U-interface. (92 – 96 V DC)

Starting at 100V, an alarm tone is generated by the KE7xx to warn that the voltage is too high on the line and can be dangerous.

Busy analoge telephone lines have voltages between 10 and 20V DC, and the POL LED is dim when the tester is connected. Red indicates a/b (T/R) inverted, green

indicates correct polarity. This is useful for determining if the line is busy or not in a distribution box. The POL LED is orange when pure AC ringing voltage is present.

With the EasyTest, any kind of voltage source can be checked for polarity, type of voltage and its approximate level. The latest EasyTest is high impedance in any

mode, meaning EasyTest draws no line current to drive the POL LEDs.

1. TONE mode (send tracing tone)

When switching to TONE mode, the EasyTest starts as default with alternating or warbling tone frequencies. The EasyTest has six easily selected tracing tone

frequencies. Briefly press the SOLID button (less than 2 seconds) to transmit a trace frequency at precisely 1 kHz. If you press the button for more than 2 seconds, a

trace frequency of 2.9 kHz is generated. Additional pressing of 2 seconds switches to 577.5 Hz.

Press the ALT button for less than 2 seconds to send alternating frequencies of 880 Hz/1 kHz. Press it for more than 2 seconds to switch to an alternating frequency of

1.9 kHz/2.6 kHz. Another 2 seconds switches to a intermittent 577.5 kHz tone. The high trace frequencies have two advantages. First, the human ear is the most

sensitive at 2,600Hz and second, these two frequencies lie outside the signaling frequency range of telephone systems. The LEDs to the right of the buttons indicate

the activated trace tone and can be seen from a distance. The trace signal can be injected without interfering with active (voltage present) telecommunications and

data lines. The KE4xx and KE7xx are high-impedance for data signals, which makes it possible to transmit trace signals on active telephone lines with ISDN and

ADSL systems without causing interference. The KE4xx further reduces possible interference by sending sinusoidal signals.

A. Tracing cables

When tracing cables and wires, even within a wall, clip the black test lead of the EasyTest to ground and the red test lead to a single wire or a wire pair. Select the trace

frequency. The selected tone is transmitted and can be tracked without contact using the PROBE for up to 60cm from the cable. Tone will be transmitted even on

shorted pairs to a maximum of 200 m. The PROBE is used to trace the cable. This is done by pressing and holding the LOW or HIGH button. To locate a signal at a

greater distance or to trace a weak signal, press the HIGH button. In the case of large cable bundles in a distribution box or rack, the PROBE is moved flat above the

bundle while pressing the HIGH button. After the cables are located using the strongest signal, press the LOW button to find the precise location of the desired cable.

The highest signal is always above the desired cable. When tracing shielded cables, connect the red test lead to the shielding and the black test lead to ground (such

as a protective conductor or water line). If there is no shielding, connect across two different pairs within the cable. If the shielding is grounded, it must be isolated at

both ends. Do not connect across pairs carrying Voice and pairs carrying Data.

B. Tracing twisted pairs

To trace specific twisted pairs and identify split pairs, connect one EasyTest test lead to one wire and connect the other test lead to the other wire. The wires must be

from the same twisted pair. This can be done by connecting to a wall jack or by clipping to the open cable end. While holding down the HIGH button, use the PROBE to

find the wire pair at the other end or at each distribution box. To determine the precise location, hold down the LOW button and find the wire pair with the strongest

signal. If the pair is twisted over the entire length, this specific pair will be found. If a wire is disconnected along the length or if the pair changes to a single wire (split),

several wires in the distribution box will carry the trace signal. This indicates a fault in the wiring. You now have to go back and locate the fault. When the cable ends are

open, use a similar procedure; spread apart the wires and move the PROBE flat over them while holding down the LOW button. When the test tip of the PROBE is

guided across the wires, the first wire of the correct wire pair displays a high level, a minimum level is displayed in the middle, and the second wire again displays a

high level. This distinctly identifies the wire pair. If you cannot find a minimum level, either it is the wrong wire pair, or there is a cable fault that may have been caused

by an interruption, crossed or split pair. The EasyTest transmits the trace frequency at approximately 12 dBm in lines with a terminal resistance that can be as low as

50 ohm. With the KE3xx/4xx/5xx/7xx, you can transmit on energized telephone or data lines. The maximum cable length for detection is 15 km (no load).

2. CONT mode - continuity check/resistance check

Turn on the continuity test mode by setting the sliding switch on the right side of the KE3xx/4xx/5xx to CONT. This applies a voltage to the tested line making it possible

to sense line continuity, shorts or resistors up to 100 kOhm. The green LED CONT briefly flashes when the test is activated or when the resistance at the test terminals

is above 100 kOhm. Depending on the level of the resistance, LED brightness will vary from light to dark. This allows the resistance to be estimated. This is a good way

to check if data cables are patched to terminating equipment. The KE7xx replaces a beeper with a variable tone resistance check. The frequency of the tone depends

on the resistance. At 0 ohm (short), a tone of approximately 3 kHz is audible, and at 100 kOhm, a tone of 500 Hz can be heard. This allows you to estimate the

resistance. It is also possible to test capacitors and other components this way.

3. DATA mode link - blink function

When the sliding switch of the KE4xx and KE7xx is set to Data, the DATA LED shines dimmly green to indicate the mode is on. The yellow RJ45 test cable is used for

testing. When it is inserted in a data port, the green DATA LED pulses brightly in sync with the generated NLP when the data port is patched to terminating equipment

like a hub or switch. The normal link pulse signal (NLP) is transmitted in four second cycles. This is displayed on the EasyTest with the green DATA LED and tone

sequence (7xx only). With conventional hubs, switches or routers, the link LED belonging to the port is turned on and off in the same cycle. This allows you to identify

equipment port you are connected to.

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