Manuals+

RS PRO 48 LAN Cablemeter User Manual

1. Introduction

The LAN Cablemeter is an easy-to-use and effective cable test instrument with the ability to identify cable failures, check wiring, and measure the cable length of UTP (Unshielded Twisted Pair Cable), FTP (Foil Screened Twisted Pair Cable), and COAX (Coaxial Cable) cables. It identifies wiring faults such as open wires, shorted wires, miswires, and split pairs, and can test up to 8 different cables at one end. A stored cable library provides quick access to common cable types.

U.S. Pat. No. Des. 446,135

The Cable Tester comes with:

  • One remote identifier #1 (RID46-234, optional for #2, #3 & #4)
  • One patch cable RJ-45 to RJ-45, 30 cm long.
  • One RJ45-RJ45 female coupler/connector.
  • Instruction manual.
  • Carrying case & 6 pcs “AAA” 1.5V Batteries.

CAUTION: The instrument is designed for connection to inactive cables. The input is protected to withstand low voltages, but prolonged connection to active telephone lines and network cabling may damage the tester.

2. Product Profile

The RS PRO 48 LAN Cablemeter features a comprehensive design for efficient cable testing. Key components include:

  • 1. LCD Display: A custom large-size LCD screen for displaying test results and information. Press the ▼ or ▲ key to display additional information.
  • 2. TEST Key: Initiates a test on the attached cable, indicating pass or failure based on selected parameters.
  • 3. Power Key: Turns the instrument On or Off.
  • 4. SET Key: Provides access to cable selection, cable calibration, and other test instrument settings.
  • 5. LENGTH Measurement Key: Measures the length of each pair of twisted pair or coaxial cables in meters or feet and tests for anomalies.
  • 6. WIREMAP Test Key: Displays wiring connections, opens, shorts, and split pairs.
  • 7. Navigation Keys (▼ / ▲): Used to scroll through a selection of choices or multiple displays.
  • 8. ENTER Key: Confirms a selection and moves to the next setting.
  • 9. M (Memory) / R (Read) Key: Used for data memory storage and retrieval (up to 99 sets).
  • 10. RJ45 Jack: A standard 8-pin modular jack for connecting UTP and FTP cables.
  • 11. Remote Identifiers (#1 ~ #8): Used for remote testing and identification of cable ends.
  • 12. BNC Connector: Used for connecting coaxial cables.

3. Specifications

Cable Length Measurements

  • Range: 1.0 to 350m (2-999 ft)
  • Accuracy: 5% + 1m (5% + 3ft)
  • For cables > 150 meters: 10% + 1m (10% + 3 ft)
  • Resolution (in Feet): Cables < 100 ft: 0.5 ft, Cables > 100 ft: 1 ft
  • Resolution (in Meters): Cables < 100 meter: 0.5m, Cables > 100 meters: 1m

Failures Detected

  • SHORTS: Range of short detection: 0 to 350m (0 to 999ft). Accuracy of distance to a short (assumes short is 0Ω): UTP/FTP: 7% + 3m (7% + 10ft); Coaxial Cables: 10% + 10m (10% + 30ft).
  • OPENS: Range of open detection: 0 to 350m (0 to 999ft). Accuracy of distance to an open: UTP/FTP: 10% + 1m (10% + 3 ft).
  • SPLIT PAIRS: Range of detection: 2 to 350m (6 to 999ft). The split pair portion of the cable must be at least 2 metres (6ft) in length and greater than 10% of the total cable length.

COAX Termination Measurements

Any loop resistance value between 5Ω and 350Ω is interpreted as a termination resistance. A resistance value below 5Ω is considered a short, and a resistance value greater than 350Ω is not displayed.

General Specifications

  • Power: Six AAA size 1.5V batteries.
  • Low Battery Indication: Display shows the symbol "+".
  • Battery Life: 100 hours.
  • Auto Power Off: 5 minutes (when there is no key activity).
  • Remote Cable Identifiers: #1 (#2 to #4 and #5 to #8 are optional).
  • Input Protection: 50V DC.
  • LAN Input Connectors: RJ45, BNC.

Environmental Conditions

  • Operating: 0 to +40°C < 80%RH
  • Storage: -20 to +60°C < 70%RH
  • Dimensions: Cable Tester 150 x 72 x 35mm; Remote identifier 60 x 23 x 22mm
  • Weight: Cable Tester 215g / Remote identifier 35g

4. Setup Selections

The setup mode allows the user to select and calibrate the instrument for particular cable characteristics. Once set, these parameters are stored and remain in the instrument memory even when it is turned off.

Setup Items:

  1. Select a cable type (UTP, FTP or COAX).
  2. Select a cable category.
  3. Select a wire size.
  4. Calibrate the cable length.
  5. Enable or disable the Beeper for ON (PASS) and OFF (FAIL).

Setup Procedure:

  1. Press the SET key.
  2. Press the ENTER key to step through the selections.
  3. Press either the ▼ or ▲ keys to select the desired setup condition.
  4. Press the ENTER key to store the setting and move to the next setup selection, or press the SET key to exit the setup mode.

Power-up Selection:

Select length measurement units between feet (ft) and metres (m).

Power-up Setup Procedure:

  1. Turn off the instrument. Press and hold down the LENGTH key, then press and hold down the POWER key, until the display shows "LEn Unit".
  2. Press either the ▼ or ▲ keys to select the desired length units.
  3. Press the ENTER key to store the unit (ft/m) and exit this mode.

Selecting a Cable Type Procedure:

  1. Press the SET key to enter setup mode.
  2. Press either the ▼ or ▲ key until the desired "cable" type is displayed, then press the ENTER key. (Displays show options like "SET UTP COAX CABLE", "SET FTP CABLE", "SET UTP CABLE").
  3. Press either the ▼ or ▲ keys until the desired "category" is displayed, then press the ENTER key. (Displays show options like "SET COAX 9-58", "SET FTP CAT 5e", "SET COAX 19-58USER", "SET FTP CAT-USER").
  4. Press either the ▼ or ▲ key until the desired "wire size" is displayed, then press the ENTER key. (Displays show options like "SET FTP A-28", "SET FTP A-26", "SET FTP A-24", "SET FTP A-22").
  5. Press either the ▼ or ▲ key to choose to proceed or not proceed with tests with the "CAL" function, then press the ENTER key. (Displays show "CAL YES" or "CAL NO").
  6. Press either the ▼ or ▲ key to enable or disable "BEEP", then press the ENTER key. (Displays show "BEEP YES" or "BEEP NO").
  7. Press the SET key to exit this mode.

5. Calibrating Cable Length

The characteristic cable parameters are determined for the particular cable selected. Cables from different batches or manufacturers may have characteristic variations of up to 20% from the nominal published specifications, which can cause deviations in length measurement. To obtain more accurate measurements, calibrate the tester to the specific cable under test.

For proper calibration, connect the cable under test directly to the tester, not through a patch cable. To calibrate the tester to the currently selected cable, perform the following procedure:

  1. Select cable type under test.
  2. Connect a good cable of known length (> 15m and ≤ 100m) to the appropriate tester connector.
  3. Press the SET key, then press the ENTER key until the display shows "CAL CABLE".
  4. Press either the ▼ or ▲ key until "YES" is displayed, then press the ENTER key.
  5. Press the SET key to show cable length. Press the ▼ or ▲ key to adjust the cable length to the exact length as measured.
  6. Press the ENTER key. The cable parameters are now stored and will remain in memory even if the instrument is turned off. All future measurements for this cable type are compared to these newly stored parameters until another cable is selected or another calibration is performed.

Notes:

1. Hidden calibrating cable length mode:

  1. Press the POWER key to turn off the meter.
  2. Press and hold down the ▼ and ▲ keys, then press the POWER key to turn on the meter, until the LCD shows "HI DE".
  3. Press the ▼ or ▲ key to cycle display through "YES" or "NO".
  4. Select "NO" and press the ENTER key to enter calibration mode.
  5. Select "YES" then press the ENTER key to escape without entering calibration mode.

2. Reset to factory default:

  1. Press the POWER key to turn off the meter.
  2. Press and hold the TEST & ▼ keys, then press the POWER key to turn on the meter, until the LCD shows "rESET".
  3. Press the ▲ key to cycle the display through "YES" or "NO".
  4. Select "YES" and press the ENTER key to enter reset mode.
  5. Select "NO", then press the ENTER key to escape without resetting.

6. Operating

A) Test Cables

The TEST function tests the attached cable based on the cable's compliance with the parameters stored in the tester for the selected cable. To test a cable, perform the following procedures:

  1. Select cable type under test.
  2. Connect the cable under test to the appropriate connector on the tester.
  3. Press the TEST key.

The tests performed depend on whether a remote identifier unit (ID) is connected to the end of the cable or not.

FAILURES DETECTEDNO remote unitwith remote unit
Short✔️✔️
Open (near-end)✔️✔️
Open (far-end)✔️
Length✔️✔️
Split pair✔️✔️
Mis wire✔️

For twisted pair cables, when the tester checks for a cable remote identifier unit (ID) at the other end of the cable and a pass condition exists, the LCD will display the following information:

  • Display Example 1: UTP, ID-1 PASS, 4.5m. Description: Good cable, cable remote unit ID#1 detected.
  • Display Example 2: UTP, ID-- PASS, 4.5m. Description: Good cable, no cable remote unit detected or the tester may not sense the remote unit.

If testing coaxial cable with a termination, the tester displays the total resistance of the cable wires and the termination. Example: COAX ST = 49.0 Ω.

Coaxial cables must be unterminated for the tester to display the cable's length. A coaxial cable with a break in a conductor looks just like an unterminated cable. A length measurement of less than the known cable length would indicate a possible open-circuit in the cable.

If a failure is detected by the instrument, additional information can be viewed with the ▼ & ▲ keys. The failure messages refer to individual wires rather than pairs of wires. The TEST mode failure messages are described in the following tables.

Test Failures (without remote unit)

FAILUREDISPLAYDESCRIPTION
Short (UTP/FTP)LCD shows "ID--", "12", "SHORT", "0.5m"Display shorted wires and most likely distance to the short.
OPENLCD shows "ID-1", "12", "OPEN", "9.0m"Display open wires, the distance to the break and whether it is at the near or far end of the cable.
Split PairLCD shows "ID-6", "1", "6", "SPLIT PAIR"Display incorrect wire pairings based on the selected cable type.

A short greater than 0Ω will cause the display to show a length greater than the actual distance to the short. The tester uses 0Ω to calculate distance to a short.

Test Failures (with remote unit)

FAILUREDISPLAYDESCRIPTION
Mis wireLCD shows "ID-1", "WIREMAP UTP", "12364578", "36127845", "MISWIRE"Display the incorrect wiring of the end connectors.
OpenLCD shows "ID-1", "12", "OPEN", "9.0m"Display the broken wire and the distance to the break.
Pair LengthLCD shows "ID-1 PASS", "0.5m"Indicates the length of the pairs within a cable are abnormally different.
Split PairLCD shows "ID-6", "1", "6", "SPLIT PAIR"A portion of the cable assembly has split pairs or a poor quality cable.

B) Cable Length Measurement

The tester measures the length of both twisted-pair. If the tester is not calibrated to the cable under test, then factory default cable characteristics are used to compute the length. If a more accurate length measurement is desired, refer to "CALIBRATING CABLE LENGTH" described in this manual.

Before a length measurement is made, the tester performs "Test Cables" described in this manual to prevent any cable failures from corrupting the length measurement.

Cable length measurement procedure:

  1. Select cable type under test.
  2. Connect the cable to the appropriate connector on the instrument and perform a cable test.
  3. Press the LENGTH key.
  4. Use ▼ or ▲ key to scroll through multiple displays.

The information displayed depends on the type of cable selected. For twisted pair cable, each pair has a corresponding length measurement. A 5% or greater difference in length between pairs is unusual and may indicate a fault.

Examples for 50m UTP:

  • Display: LENGTH UTP ID-- 12 49.5m
  • Display: LENGTH UTP ID-- 36 50.5m
  • Display: LENGTH UTP ID-- 45 50.5m
  • Display: LENGTH UTP ID-- 78 51.0m

C) Wire Map Checking

Use the wiremap function and remote identifier unit (ID) to determine the wiring status of both the near end and far end of the cable.

Wire Map measure procedure:

  1. Select cable type under test.
  2. Connect the cable under test to the appropriate connector on the instrument.
  3. Press the WIRE MAP key.

Display Example: UTP, WIREMAP, ID-1, 12364578 / 12364578. Description: Good cable with remote unit.

Wire Map Failure Using remote unit (ID)

FAILUREDISPLAYWIRINGDESCRIPTION
Short (near end)LCD shows "WIREMAP UTP ID-- 12 / 44 SHORT"1-1, 2-2, 3-3, 6-6 (wires connected to "s")Alternately display an "s" with actual wire numbers of each wire shorted.
OpenLCD shows "WIREMAP UTP ID-1 10364508 / 10364508 OPEN"1-1, 2-2, 3-3, 6-6, 7-7 (wires connected to "o")Alternately display "o" with the number of each open-circuit wire.
MiswireLCD shows "WIREMAP FTP ID-1 123645784 / 361245784 MISWIRE"1-1, 2-2, 3-6, 6-3Displays the wiring detected by the instrument. The wire numbers involved in the anomaly will flash on the display.

7. Saving and Recalling Data in Memory

  1. Press the MR key once to store one set of data in the internal memory. The LCD shows M and the memory location numbers (01 to 99). If no test data is displayed, this function is inoperative.
  2. Press the MR key for 3 seconds to enter the read memory data mode. The LCD shows R and the memory location number. Additional information can be viewed with the ▲ / ▼ key.
  3. Press the ENTER key to scroll through the logged readings.
  4. Press the MR key again to exit READ mode. The LCD will show "Out rEAD".
  5. To erase the memory:
    1. Press the POWER key to turn off the instrument.
    2. Press and hold down the MR key, then press the POWER key to turn the instrument on. When the LCD shows "dEL", press the ▲ or ▼ key to cycle the display through "YES" or "NO". Select "YES" and press the ENTER key to clear all memory locations.

8. Maintenance

  1. Cleaning: Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents. Clean and dry as required.
  2. Battery replacement: When the LCD display shows "+", the batteries have insufficient power to operate the instrument correctly and must be replaced. Remove the battery compartment cover and replace all 6 cells with new ones. Refit the battery compartment cover. Dispose of the removed cells in compliance with local regulations.
  3. Long-term storage: When the meter will not be in use for a long period of time, please remove the batteries from the meter to prevent the possibility of battery fluid leakage damage.

Limited Warranty

This meter is warranted to the original purchaser against defects in material and workmanship for 3 years from the date of purchase. During this warranty period, RS Components will, at its option, replace or repair the defective unit, subject to verification of the defect or malfunction. This warranty does not cover fuses, disposable batteries, or damage from abuse, neglect, accident, unauthorized repair, alteration, contamination, or abnormal conditions of operation or handling.

Any implied warranties arising out of the sale of this product, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited to the above. RS Components shall not be liable for loss of use of the instrument or other incidental or consequential damages, expenses, or economic loss, or for any claim or claims for such damage, expense or economic loss. Some states or countries laws vary, so the above limitations or exclusions may not apply to you. For full terms and conditions, refer to the RS website.

Contact Information

Africa
RS Components SA
P.O. Box 12182,
Vorna Valley, 1686
20 Indianapolis Street,
Kyalami Business Park,
Kyalami, Midrand
South Africa
www.rs-components.com

Asia
RS Components Pte Ltd.
Suite 1601, Level 16, Tower 1,
Kowloon Commerce Centre,
51 Kwai Cheong Road, Kwai Chung,
Hong Kong
www.rs-components.com

China
RS Components Ltd.
Suite 23 A-C
East Sea Business Centre
Phase 2
No. 618 Yan'an Eastern Road
Shanghai, 200001
China
www.rs-components.com

U.K
RS Components Ltd.
PO Box 99, Corby,
Northants.
NN17 9RS
United Kingdom
www.rs-components.com

Japan
RS Components Ltd.
West Tower (12th Floor),
Yokohama Business Park,
134 Godocho, Hodogaya,
Yokohama, Kanagawa 240-0005
Japan
www.rs-components.com

U.S.A
Allied Electronics
7151 Jack Newell Blvd. S.
Fort Worth,
Texas 76118
U.S.A.
www.alliedelec.com

South America
RS Componentes Limitada
Av. Pdte. Eduardo Frei M. 6001-71
Centro Empresas El Cortijo
Conchali, Santiago, Chile
www.rs-components.com

Europe
RS Components Ltd.
Mainzer Landstraße, 180
60327
Frankfurt/Main
Germany
www.rs-components.com

Apr-2024

Models: RS-48-EN, 462-9267, 462-9267 Cable Tester, 462-9267, Cable Tester, Tester

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