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7

Modes and Functions

There is often no way to know by inspection or by 
audio monitoring if the wire pair you are connecting to 
is a high-speed data line or not. Most high-speed data 
is above the human hearing range so listening to the 
line in Monitor mode may not allow you to identify it 
as a data line. If you see the 

DATA DETECTED

 message, 

chances are you have accidentally connected to a data 
line. If so, disconnect the test set from the line, being 
careful not to short the clip leads together in the 
process. 

Caution

If you have accidentally connected to a data 
line, do not press the down arrow because 
overriding will cause the test set to go off-
hook and take the data service down.

In some situations you may want to go off-hook, as 
described in the next section.

Data Lockout Override

Caution

Shorting the Tip and Ring leads together 
while connected to a data line will cause 
disruption to the data.

Whenever you try to go off-hook on a high-speed data 
line, the TS25D Test Set will go into Data Lockout mode 
and will not go off-hook. This is to protect data 
services, most of which would be corrupted by loading 
the line with the low impedance of an off-hook 
telephone. But ADSL (Asymmetrical Digital Subscriber 
Line) is a different circumstance. 

ADSL is a high-speed data service intentionally 
designed to co-exist on the same wire pair as standard 
analog telephone service. If you try to go off-hook on a 
wire pair carrying both ADSL and analog telephone 
service, the TS25D Test Set will detect the ADSL data 
signal and go into Data Lockout mode as it would on 
any data line. You will see the message 

DATA 

DETECTED, DOWN ARROW TO OVERRIDE

. Now, if you 

want to go off-hook to access the analog phone service 
sharing the line with ADSL, press the down arrow as 
instructed on the LCD. 

The test set will override the lockout, will go off-hook 
and draw dial tone without disturbing the co-existing 
ADSL service. The TS25D Test Set has circuitry that 
protects the ADSL service when it is off-hook. Going 
off-hook on ADSL lines is the most common use of 
Lockout Override.

There is another case where the override function may 
be needed. You may encounter the rare circumstance 
where the analog telephone line you connect to is not 
carrying any data but there is enough high frequency 
noise on the line that theTS25D Test Set thinks there is 
high-speed data on the line. If you know you are 
connected to such a line, use the Lockout Override 
function to go off-hook. This usually only happens 
when the telephone line is near a commercial AM 
radio broadcast antenna.

There is a provision for turning the data lockout 
function off. When Data Lockout is turned off, the test 
set will go off hook on a powered line when switched 
to Talk (

T

), even if data is present. When Data Lockout 

is off, the test set will still detect data in Monitor mode. 
To learn how to turn Data Lockout on and off, refer to 
the System Configuration section.

High Voltage Lockout

Caution

Do not short the test set leads to each other 
while it is connected to a line carrying high 
voltage.

The TS25D Test Set is designed for use in environments 
where analog voice lines co-exist with lines that carry 
high DC voltages. When the TS25D Test Set is switched 
to Talk mode, it tests the line for high-speed data and it 
measures the DC voltage on the line before it goes off-
hook. If the DC voltage exceeds 140 V, the test set will 
prevent itself from going off-hook and will display 

HIGH VOLTAGE LOCKOUT

Содержание TS 25D

Страница 1: ...TS 25D Test Set PN 2451820 October 2005 Rev 3 3 13 2005 2009 2012 2013 Fluke Corporation All rights reserved Printed in China All product names are trademarks of their respective companies Users Guide...

Страница 2: ...or replacement of a defective product which is returned to a Fluke Networks authorized service center within the warranty period To obtain warranty service contact your nearest Fluke Networks authori...

Страница 3: ...des and Functions 6 Monitor Mode 6 Talk Mode 6 Data Lockout 6 Data Lockout Override 7 High Voltage Lockout 7 Low Voltage Lockout 8 Talk Battery 8 Caller ID Call Waiting ID 9 Toner 9 DTMF Detection 10...

Страница 4: ...Pause Duration 14 Flash Duration 14 System Timeout 15 Speaker Timeout 15 Data Lockout 15 Firmware Version 15 Factory Settings 16 Maintenance 16 Keypad Care 16 Replacing the Battery 16 Replacing the L...

Страница 5: ...ccess to valuable information on product updates troubleshooting tips and other support services To register fill out the online registration form on the Fluke Networks website at www flukenetworks co...

Страница 6: ...Flash Memory Dialing Tone and Pulse Dialing Displays Voltage when on hook Displays Current when off hook Polarity Indication Detect and Display Caller ID Call Waiting ID CIDCW Toner Talk Battery DTMF...

Страница 7: ...ric keypad is used to dial telephone numbers and make function selections The keypad includes 12 standard dialing keys the asterisk key and pound key SPKR The SPKR speaker key turns the speaker on inc...

Страница 8: ...of the test set The line cord included with the standard TS25D Test Set has angled bed of nails clips The line cord included with the TS25D CO Test Set has a 346A plug Extension line cords for the 346...

Страница 9: ...the line is not powered Battery The battery icon indicates the battery s charge level The battery level is continuously displayed in Monitor and Talk mode On off hook The telephone icon tells you if...

Страница 10: ...e test set will go off hook and draw dial tone An off hook TS25D test Set works like a standard telephone When off hook the test set is used to perform its main purpose which is to verify the proper o...

Страница 11: ...ARROW TO OVERRIDE Now if you want to go off hook to access the analog phone service sharing the line with ADSL press the down arrow as instructed on the LCD The test set will override the lockout wil...

Страница 12: ...oned When the test set connected to a line carrying data signals but no DC voltage is switched to Talk mode the LCD will display DATA DETECTED AND LOW VOLT LOCKOUT Some data services have no associate...

Страница 13: ...or arrange for someone to call the line the test set is connected to When the call comes in you will hear the Call Waiting Alert tone This will be followed by the CAS tone and the Caller ID message W...

Страница 14: ...ck to Monitor mode DTMF detection is only available when the TS25D Test Set is in Monitor mode Call and Dialing Functions Note Remove the protective film that covers the LCD display before using your...

Страница 15: ...erisk and pound keys are pressed in Pulse mode they will be ignored Memory Dialing The TS25D Test Set allows the user to dial pre programmed numbers in either Tone or Pulse mode If dialing in Pulse mo...

Страница 16: ...slash quote period or 1 depending on how many times you press the key Use the Up arrow to erase characters In this case the Up arrow moves the cursor to the left 7 After the entry is complete press th...

Страница 17: ...rsor location A comma is used to represent a pause Pauses are used to put time delays into a string of numbers The default pause duration is 4 seconds 10 After the entry is complete press the SEL key...

Страница 18: ...screen see Figure 2 Timing Use the Timing option to set the Pause duration and the Flash duration Pause Duration To set the Pause duration 1 Set the slide switch to the Talk T or Monitor M position 2...

Страница 19: ...ss the SEL key or press 3 on the keypad 3 Press 2 SPKR TIMEOUT 4 Highlight the desired time with the arrow keys then press the SEL key or press one of the following keys on the keypad 1 2 minutes TS25...

Страница 20: ...imilar chlorinated solvent on the test set Doing so will damage the test set If moisture should get inside the test set let the test set dry at normal room temperature for 24 hours DO NOT HEAT THE TES...

Страница 21: ...r 5 Loosen the two screws that hold the line cords to the PCB 6 Using needle nose pliers or one of the line cord clips remove the two screws and washers from the line cord connectors 7 Position the sc...

Страница 22: ...last number redial memory Digit Capacity 23 digits per memory Pause Duration User programmable Default 4 seconds Hook Flash Duration User programmable Default 600 ms Automatic Speaker Shut Off Durati...

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