STRUCTURED CABLE TESTER MEGGER SCT100

Transcription

1 STRUCTURED CABLE TESTER MEGGER SCT100 User Guide MEGGER

2 CONTENTS The Structured Cable Tester Operating Instructions Fault flow diagram Pair/Wiring Configuration Battery replacement x x x x x Standards Safety: IEC :1995 EMC BS/EN :1997 EMC Standard Category of Pass ESD IEC B EM IEC A Burst IEC A Surge IEC A Conducted RF IEC A Symbols used on the instrument are: Caution: Reger to accompanying notes. Equipment complies with current EU Directives 2

3 SAFETY WARNINGS This instrument meets the safety requirements of IEC :1995. It is for use on deenergised circuits only and connection to a telecom network voltage (TNV1, 2 or 3) could result in damage to the instrument and/or a hazard to the operator. Hence the user must assume responsibility for ensuring his or her, own safety. WARNING THIS PRODUCT CONTAINS MAGNETS, DO NOT PLACE IT NEAR TO ITEMS SUSCEPTIBLE TO MAGNETIC DAMAGE. THE STRUCTURED CABLING TESTER MUST NOT BE CONNECTED EITHER DIRECTLY OR INDIRECTLY TO THE MAINS ELECTRICITY SUPPLY OR THE PUBLIC TELEPHONE NETWORK, FOR USE ONLY ON ISOLATED CIRCUITS 3

4 The Structured Cable Tester The Structured Cable Tester is simple to use with continually sequencing LED displays. It tests and indicates wiring errors in both Unscreened Twisted Pair (UTP) and Screened Twisted Pair (STP) patch cables and installed networks. The Cable Tester indicates short circuits, open circuits, pair reversals and miswires for 2, 3 and 4 pair voice and data channels. Two screened RJ45 sockets are provided, one for TIA568A and B configured systems, and the other for USOC. The Cable Tester is powered by a 9 volt zinc chloride battery located in the main unit. It features a low battery indicator that alerts the user to the battery condition, thus avoiding erroneous results. To prevent battery drain an automatic battery switch disconnects the battery when the units are in their closed/storage position. The main and remote units lock together magnetically to form an integral unit for ease of carriage, providing protection to all components, yet are simple to separate for end to end testing of installed cables and patch leads. 4

5 Operating Instructions To check a system it is recommended that all ports should be tested in turn back to the relevant Patch Panel, checking for cross connections and miswires, and then confirming that all patch leads are satisfactory. To test an installed system the following procedure should be used: 1. Attach the Remote Unit to the port under test at the far end of the network using the appropriate test socket in the SCT100 and a short patch lead. 2. Attach the Main Unit to the port under test on the relevant Patch Panel using the appropriate test socket in the SCT100 and a short patch lead. 3. For a good cable the LEDs on both the Main and Remote units will illuminate GREEN in sequence together (all 5 for a screened installation, LEDs 1 to 4 for an unscreened installation). This sequence repeats continuously. Should the LEDs indicate anything different, then the port is faulty and should be noted accordingly. 4. Repeat for next port. 5. Repair all faults and retest. 5

6 Fault flow diagram LEDs flash GREEN sequentially on Main and Remote (1 to 4 unscreened. 1 to 5 screened) Correct Corresponding LEDs OFF on Main and Remote LED OFF and Remote Open Circuit pair Short with pair LED flashes RED on Remote Reversed pair LED flashes GREEN out of sequence on Main and Remote Transposed pair LED flashes GREEN twice or 2 LEDs flash simultaneously Short between pairs Other MULTIPLE FAULTS 6

7 Pair/Wiring configuration TIA TIA USOC USOC 568A 569B 8 Wire 6 Wire Pair 1 5 & 4 5 & 4 5 & 4 4 & 3 Pair 2 3 & 6 1 & 2 3 & 6 2 & 5 Pair 3 1 & 2 3 & 6 2 & 7 1 & 6 Pair 4 7 & 8 7 & 8 8 & 1 N.B. When testing USOC 6 Wire systems only LEDs 1 to 3 will Illuminate. 7

8 Battery replacement The Cable Tester includes a low battery voltage indicator on the main unit which illuminates when the battery needs replacing. To avoid drain on the battery when the tester is not in use, an automatic power off switch operates when the units are magnetically locked together in their closed/storage position. To change the battery undo the two screws on the main unit and remove the back cover. Replace the battery and refit back cover. Avoid over tighten the screws. Failure to change the batteries when indicated could cause erroneous readings. 8

9 The instrument contains static sensitive devices, and care must be taken in handling the printed circuit board. If an instrument's protection has been impaired it should not be used, but sent for repair by suitably trained and qualified personnel. The protection is likely to be impaired if for example; it shows visible damage; fails to perform the intended measurements; has been subjected to prolonged storage under unfavourable conditions, or has been subjected to severe transport stresses. NEW INSTRUMENTS ARE GUARANTEED FOR 3 YEARS FROM THE DATE OF PURCHASE BY THE USER. NOTE: Any unauthorised prior repair or adjustment will automatically invalidate the Warranty. INSTRUMENT REPAIR AND SPARE PARTS For service requirements for MEGGER Instruments contact: AVO INTERNATIONAL or AVO INTERNATIONAL Archcliffe Road Valley Forge Corporate Centre Dover 2621 Van Buren Avenue Kent, CT17 9EN. rristown, PA England. U.S.A. Tel: +44 (0) Tel: +1 (610) Fax: +44 (0) Fax: +1 (610) Repair and Warranty or an approved repair company. Approved Repair Companies A number of independent instrument repair companies have been authorised for repair work on most MEGGER instruments, using genuine MEGGER spare parts. Consult the Appointed Distributor/Agent regarding spare parts, repair facilities, and advice on the best course of action to take. Returning an Instrument for Repair If returning an instrument to the manufacturer for repair, it should be sent freight pre-paid to the appropriate address. A copy of the invoice and of the packing note should be sent simultaneously by airmail to expedite clearance through Customs. A repair estimate showing freight return and other charges will be submitted to the sender, if required, before work on the instrument commences. 9

10 AVO INTERNATIONAL Archcliffe Road PO Box S. Westmoreland Road MEGGER SARL Dover Valley Forge Dallas 29 Allée de Villemomble Kent, CT17 9EN. PA TX Le Raincy England. U.S.A. U.S.A. Paris, France Tel: +44 (0) Tel: +1 (610) Tel: +1 (800) (U.S.A. only) Tel: +33 (1) Fax: +44 (0) Fax: +1 (610) Tel: +1 (214) (International) Fax: +33 (1) This instrument is manufactured in the United Kingdom. The company reserves the right to change the specification or design without prior notice. MEGGER is the registered Trade Mark of AVO INTERNATIONAL LIMITED. Copyright, AVO INTERNATIONAL LIMITED Part Edition 1- Printed in England - 02FF