Senter ST230F User manual

ST230F TELEPHONE LINE TESTER
USER MANUAL
Shandong Senter Electronic Co., Ltd

ST230F TELEPHONE LINE TESTER
1
Content
1. S mmary ............................................................................................................2
2. Layo t.................................................................................................................2
2.1 Tester........................................................................................................2
2.2 Front faceplate..........................................................................................2
2.3 Test faceplate ...........................................................................................4
3. Main F nctions and Specifications......................................................................4
4. Dimension & Weight ...........................................................................................4
5. Operation environment .......................................................................................5
6. Operation directions............................................................................................5
6.1 Telephone f nctions..................................................................................5
6.1.1 Dialing ...........................................................................................5
6.1.2 Receiving ......................................................................................5
6.1.3 Redial............................................................................................5
6.1.4 Caller telephone n mber display...................................................5
6.1.5 Free Hands (lo dspeaker) F nction..............................................6
6.1.6 Telephone n mber storage and dial f nction.................................6
6.1.7 Data locko t override f nction.......................................................6
6.1.8 M te f nction.................................................................................6
6.1.9 P/T transfer f nction......................................................................6
6.1.10 High DC voltage indication ..........................................................6
6.2 Tester test.................................................................................................6
6.2.1 AC V & DC V test ..........................................................................6
6.2.2 Ins lation test ................................................................................7
6.2.3 Open line test ................................................................................7
6.2.4 Earth ins lation .............................................................................7
6.3 Call ser & talk .........................................................................................7
6.4 Phone test ................................................................................................7
6.5 Check wire pairs .......................................................................................7
6.6 Monitor .....................................................................................................8
6.7 High AC voltage alarm..............................................................................8
6.8 Low voltage self-checking.........................................................................8
6.9 Charge......................................................................................................8
6.10 Accompanied earphone (optional) ..........................................................9
7. Notes ..................................................................................................................9
8. Accessories.........................................................................................................9
8.1 Main test line ............................................................................................9
8.2 RJ11 linking line........................................................................................9
8.3 The American type pl g line (optional) .....................................................9
8.4 Distrib tion frame test line (optional) ......................................................10

ST230F TELEPHONE LINE TESTER
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①
②
③
⑤
⑥
⑦
⑧
1. Summary
ST230F Telephone Line Tester is one portable and intelligent line fa lt tester, which adopts advanced technologies s ch
as intelligent CPU, IC & s rface mo nted technology (SMT) technology. It integrates vario s kinds of f nctions s ch as
telephone, line performance test and safety test to be the one.
The caller telephone n mber display f nction is compatible with FSK/DTMF two types. Its partic lar f nction of
a tomatically detecting high AC voltage test can test whether there is dangero s high AC voltage in the line or not q ickly
and acc rately in order to protect lineman from high voltage.
The tester is designed following the h man engineering theory with the appearance style like barbell, it can be p t on the
sho lder, the lineman can do other work sing hands at the same time; besides, it can be h ng in the tool belt of waist
thro gh the pothook, it is convenient to realize the talk f nction cooperating with the high q ality earphone when the
lineman is climbing or doing other things; the max contin o s working d ration when the inside rechargeable Ni-MH
battery is f lly charged is abo t 7 ho rs witho t replacing battery; the shell is made of new material and it is very reliable.
2. Layout
2.1 Tester
① ST230F telephone line tester shell
② Pothook--- se it to h ng tester to
tool belt of waist or cable
Terminal box ③ ---operate with
assistant test line-RJ11 port
Test clamp ④
⑤ Charge hole
Ear ⑥ phone hole
⑦ Assistant RJ11test line-operate with terminal box
⑧ Charger
2.2 Front faceplate
④

ST230F TELEPHONE LINE TESTER
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① Hook—Open/close the tester key
② SPKR—Hands free f nction key(Lo dspeaker)
③ Unlock—Data key of override f nction
④ Redial—Redial the last telephone n mber
⑤ M te—Press it, yo can hear of the voice on the line, b t others can not hear of yo .
⑥ */P…T—“*” and P/T
⑦ Store—Store the calling telephone n mber
⑧ Memory—Telephone n mber extracting key and yo can press one key to do q ick dial.
⑨ Dial key—1……9,*,#
⑩ Talk indicator light—this light will be bright when talking
H-DCV LED indicator— If there is high DV voltage on the line, the indicator will be light
Data LED indicator—If there is living data ADSL service on the line when yo do the data identification operation, the
data indicator will be light.
○
13 H-ACV LED indicator— If there is high AV voltage on the line, the H-ACVA indicator will be light.
○
14 LCD—Display telephone n mber and test res lt
2.3 Test faceplate
① Phone/Tester
Press it to enter test stat s; loose it to enter telephone stat s.
② Talk
Press it and cooperate with key
① to talk, then cooperate with the key ③ to call ser.
③ Test: after pressing key ① , Press it to test line ins lation; press it after press key ① and key to call ser. ②
④ M N/IDT: Press it in telephone stat s and it will be in monitor stat s; press it after press key ① and it will be in AC
voltage test stat s.

ST230F TELEPHONE LINE TESTER
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3. Main Functions and Specifications
 DC V test
Range: 0 ～ 260V ， Error: ±5 ％
 Ins lation impedance test
Range: 0.1~10MΩ, Error: ≤±5 ％ ±0.1 MΩ
Range: 10~30MΩ, Error: ≤±10 ％ ±0.5MΩ
 Ind ction voltage f nction
 Ring distance ≤ 2Km
 Open line resol tion ≤ 2Km
 Monitoring resistance ≥1MΩ
 Caller telephone n mber display, FSK/DTMF a to compatibility
 DTMF applying to GB/T15279-94
 Dialing n mber display
 Hands free (lo der speaker) f nction, which can free yo r hands to do other operations.
 Telephone n mber storage and dial f nction
 Data locko t override f nction
 M te f nction
 P/T transfer f nction
 ADSL/ISDN identification
 High voltage indication
 Checking wire pairs f nction as the cable tracker
 Battery: rechargeable 9V NI-MH battery
4. Dimension & Weight
 Dimension （ mm ） : 232×73×95

ST230F TELEPHONE LINE TESTER
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 Weight
（ kg ） : 0.5
5. peration environment
 Environment temperat re: -10 ~55 ℃ ℃
 Relative h midity: 10%~95%
 Environment noise: ≤60dB
 Atmospheric press re: 86~106Kpa
6. peration directions
6.1 Telephone functions
Connect test clamp to normal telephone line directly or thro gh assistant test line, it can be sed as common telephone to
dial, talk and display caller ID.
6.1.1 Dialing
Press Hook, LED is on and there will be a dial so nd, Then yo can dial n mber to others.
Example: Dial n mber 3584060 and the LCD will display like followings:
Press Hook again to end talk.
6.1.2 Receiving
Press Hook to talk when the tester is ringing, press Hook to end talk.
6.1.3 Redial
Press “REDIAL”, yo can redial last telephone n mber. If it is b sy, please hang and press redial again.
6.1.4 Caller telephone number display
This f nction is only sed in the line which has caller telephone n mber display service. The caller telephone n mber will
be displayed when it receives the TSK or DTMF incoming call. The n mber can be refreshed a tomatically.
If the incoming call n mber is secret and it will be displayed as:
If the size of caller telephone n mber exceeds the range and it will be displayed as:
If the incoming call signal is wrong and it will be displayed as:
Notice: 1. Do not se the telephone f nction if there is high AC or DC.
2. Only the line which has opened the caller phone n mber display service can se this caller n mber display
f nction
3 5 8 4 0 6 0
. . . P . . .
. . . 0 . . .
. . . E . . .

ST230F TELEPHONE LINE TESTER
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6.1.5 Free Hands (loudspeaker) Function
Loose all the keys of the tester, connect with POTS cable, press the key and the tester is in the off-hook mode, and yo
can hear the lo der speaker so nd, press the key again, it is in hook mode. If yo press Hook first, and then press the key,
yo also are in the lo dspeaker mode, press the key again, and cancel the lo dspeaker f nction.
6.1.6 Telephone number storage and dial function
◆
◆◆
◆ Telephone number storage
Under hook stat s and no ringing signal, this tester can store telephone n mber. First, press the n mber yo want to store
like “0-1-…n”, then press “ST RE”, and press storage address n mber “n”,0≤n≤9 。
◆
◆◆
◆ Storage number dial
Connect terminal post to the telephone line, then press “MEM RY”, and press n mber address key “n”, press “HOOK” or
“SPKR”, yo can dial the n mber yo want.
6.1.7 Data lockout override function
Loose all keys, connect clamps to a telephone line with data service (ISDN, ADSL and data service is being sed), in this
sit ation, telephone can not off-hook, if yo want to off-hook, and yo sho ld firstly press “UNL CK”(Note: if the high
voltage light is bright, please do not off-hook in order not to damage the tester.).
6.1.8 Mute function
Loose all keys, connect clamps to the telephone line, off-hook and press “MUTE”, the other side can not hear o r voice,
and press “MUTE” again, it becomes normal.
6.1.9 P/T transfer function
Loose all keys, nder test stat s and no ringing signal, this tester can do P/T transfer operation. Pressing “*” more than 3
seconds can realize p lse dialing and tone dialing transformation, after s ccessf l transformation, the LCD will display
“p lse” or “tone”.
6.1.10 High DC voltage indication
Connect this tester to the telephone line, if there is high DC voltage, the DATA light will be bright all the time. Please do not
off-hook in order to damage the tester.
Notice:
1. If the line has high AC/DC voltage, please do not se telephone f nction.
2. Only the line which has opened caller ID service can has caller telephone n mber f nction.
3. Line high voltage indicator can only apply to lines with low c rrent and the range can not exceed 150V.
6.2 Tester test
Press “Phone/Tester” and connect test line to ser line which will be tested, yo can have the tests like followings:
6.2.1 AC V & DC V test
In the normal stat s, press “Phone/Tester” (“Phone/Tester” LED on) to have the voltage test.
It means that there is high voltage in the line if the LCD display like following and there is fl ting so nd. Please take the
clamps q ickly.

ST230F TELEPHONE LINE TESTER
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The LCD will display the line voltage fig re a tomatically if there is DC voltage in the line. In the following graph, it means
that there is min s 64.6V DC voltage in the line; then the line which is connected by the red clamp is positive port and the
black clamp is negative port.
P rpose: This f nction can be sed to test whether the ringing p/off voltage of line is normal or not; it can help lineman to
disting ish the positive port and negative port of the line q ickly in order to ens re whether they connect the line correctly
or not when install the relevant eq ipment.
6.2.2 Insulation test
Press “Phone/Tester” in the normal stat s to j dge there is no voltage in the line, and keep pressing “Test” abo t 3
seconds to test the ins lation. The LCD will display the ins lation resistance fig re a tomatically like the following graph. If
the ins lation resistance is less than 20MΩ and there is a fl ting so nd, it means that the ins lation resistance fig re of the
line is small; there is bad ins lation fa lt.
Please take off the ser phone if yo want to test the ins lation resistance of the line.
It can be confirmed whether the fa lt has been canceled or not thro gh the line ins lation test after checking the ser line.
6.2.3 pen line test
In the normal stat s, connect the tester to the line which will be tested and press “Pone/Tester”, after confirm there is no
voltage in the line, keep pressing “Test” for abo t 3 seconds. It means that the line is break if the LCD only displays MΩ.
6.2.4 Earth insulation
Like the above operation, connect the black clamp to earth line and the red clamp to the line which will be tested. The LCD
will display the earth ins lation degree.
6.3 Call user & talk
Disconnect the local side, connect the test line to passive ser’s line, press “Phone/Tester” (its right LED on), press
“Talk” after j dging there is no voltage in the line and then press “Test”, and yo can call ser telephone of the line. (Call
LED on indicates the signal has been sent o t); that Talk LED is on indicates ser off hook, loose “Test” enable to talk.
This f nction can be sed to check the line condition of repair.
6.4 Phone test
The phone q ality can be tested by the ST230F.
Connect the tester line to the ser phone thro gh clamps or assistant line and ring the ser phone, it means that the ser
phone is normal if it rings normally; the phone q ality is good if the q ality of the comm nication voice is good, otherwise,
there are fa lts in the phone.
6.5 Check wire pairs
－
－－
－ 64.6V
16.4 MΩ
~

ST230F TELEPHONE LINE TESTER
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On the one end(END A) of the cables, se the ST230F black alligator clamping one cable and red alligator clamping
another cable, On the other end (END B), we name the cable with red alligator as the assistant cable. Use the telephone
or ST230F clamping the same two cables to confirm normal talk. Then at the other end (END B), choosing any waiting
checked cable connects with assistant cable, after that, on the end (END A), yo sho ld insert single alligator cable into
the charge hole, sing this single alligator to connect any of waiting checked cables, when yo hear the long “D …” so nd,
yo find the checked cable.
6.6 Monitor
High resistance monitoring f nction helps operators choose/check line witho t infl ence to the ser telephone and digital
service. This can less ser complaints and avoids interr ption of ser data service.
Has high resistance monitor f nction,
Usage:
① Press b tton , the MONITOR indicator light is on. The tester enters into Monitor & Identifying state.
② Connect line clamps to telephone line that is being sed, the tester can clearly hear voice call in the line, and the
DATA-LED light will be bright accompanying the talk.
③ Connect clamps to ISDN network, DATA-LED light will be bright when ser ses this service, and there will be r stle
so nd in the receiver, if there is no ser sing this service, yo will hear code stream so nd like da,da…and
occasionally r stle so nd.
④ Connect clamps to ADSL line, DATA-LED light will be bright when ser ses this service, and there is no so nd in the
line, if there is no ser sing this service, DATA-LED light is not bright.
6.7 High AC voltage alarm
Press “Phone/Tester” and then press when the ST230F is near the line circ it which has high AC voltage;
LED on and there is alarm so nd. Please take care and operate it caref lly!
P rpose: the safety of the line can be tested before sing this f nction and to avoid the danger effectively.
Notice: This function is the accessorial function, please operate it according to the manual and the manufacturer
does not respond for damages caused by using this function.
6.8 Low voltage self-checking
After pressing “Phone/Tester”, if it displays and there is the so nd “di di…”, it means the battery is low voltage.
Please loose “Phone/Tester” and charge the tester.
6.9 Charge
Insert the o tp t pl g of charger into charge hole, and then insert the charger into 220V socket. The charge indicator light

ST230F TELEPHONE LINE TESTER
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on the charger will be bright, which means the tester is in normal charging stat s.
The 7 to 10 ho rs charge d ration is the best. Please do not press “Phone/Tester” d ring the charge process; otherwise,
there will be the fl ting so nd.
6.10 Accompanied earphone (optional)
Earphone jack is on the pside. Hang the tester in tool belt of waist or cable by Belt Clamp, sing earphone accessory
can liberate the hands of the ser to do other work at the same time.
7. Notes
Before sing this tester, yo sho ld se ind ced voltage f nction to make s re there is no high AC voltage in the line, and
se voltage test f nction to make s re there is no high DC voltage in the line, after that, yo can se other f nctions, which
not only protects ser safety b t also protects the tester from damage.
 During the test status, there will be dangerous voltage in the line when you press the Test key, please
pay attention to the safety and do not touch the test clamp.
 If there is “V” ，
，，
， which is displayed in the LCD during the test, it means that there is high DC V in the line,
please take the clamps and pay attention to the safety.
 The distance of induced voltage test is related to the high/low of the voltage which is tested, the test
environment and the weather; the higher the voltage which is tested is, the longer the distance of
electromagnetic eradiation is, and the longer the test distance is; the rain, snow and fog can absorb
part of electromagnetism, therefore, the test distance is small; if there is other barriers such as trees,
house, wall and so on, and they can absorb part of electromagnetism and the distance is small.
 Please loose all the keys to avoid discharge of the battery when the instrument is not used (dialing
does not consume battery, only the test status, monitor or induced voltage can consume battery).
 Please check whether there is high AC V or DC V in the line or not before operating the tester to avoid
the damage to the instrument or person.
 Take the clamp immediately and do not do other operation if there is high DC V in the line.
8. Accessories
8.1 Main test line
The soft test line has the terminal box and special clamps. The red line is the anode and the black line is
cathode when the voltage is tested; yo can realize the connection with many kinds of pl gs or sockets sing the terminal
box of main test line and the assistant line; yo can connect all kinds of telephone lines conveniently to have test sing the
special clamps of main test line.
8.2 RJ11 linking line
It can be inserted into the socket in the wall or sed to test the q ality of telephone thro gh the terminal box.
8.3 The American type plug line (optional)
It can be inserted into the special socket to have test thro gh the Terminal box.

ST230F TELEPHONE LINE TESTER
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8.4 Distribution frame test line (optional)
It can be inserted into distrib tion frame conveniently to test the line thro gh the terminal box.
SHANDONG SENTER ELECTRONIC CO., LTD.
NO.98, WANJIE RD,
NEW & HI-TECH AREA,
ZIBO, SHANDONG, CHINA
P.C. 255086
TEL: [phone]
FAX: [phone]
WWW.SENTER.COM.CN
[e-mail]