Klein VDV Scout Pro 3 Cable Tester Training

Overview, Specifications & Physical Description

The Klein Tools VDV Scout™ Pro 3 (VDV501-852) is a portable voice-data-video cable tester. It tests and troubleshoots RJ11, RJ12, RJ45, and F-connector terminated cables, measures cable length, tests for shield, performs hub blink testing, traces up to 19 cable locations, and generates analog tones for cable tracing.

🔥

Voice

RJ11/RJ12 POTS cables, 4-wire, 6-wire, 2 & 3 twisted-pair, Cat3

📡

Data

RJ45: Cat5e, Cat6, Cat6a, Cat7, Cat7a Ethernet

📺

Video

F-connector coaxial: RG6, RG6Q, RG59

General Specifications

Specification	Value
Dimensions	6.5″ × 3.0″ × 1.6″ (16.5 × 7.6 × 4.1 cm)
Weight	11 oz. (312 g) with battery and remote
Operating Temperature	32° to 122°F (0° to 50°C)
Battery	9V alkaline — Standby: 4 years; Active: 50 hours (without backlight)
Length Measurement Range	1.5 ft to 1,999 ft (0.5 m to 610 m) at 15 pF/ft
Length Accuracy	±5% (feet or meters)
Length Constant Range	10 pF/ft to 40 pF/ft (33 pF/m to 132 pF/m)
Length Measurement Method	Capacitance
Max Voltage (RJ Jack)	66V DC or 55V AC between any two pins
Max Voltage (F-Connector)	66V DC or 55V AC

Keypad — Seven Buttons (A–G)

VOICE / UP — Short press: wire map test on RJ11/RJ12 cable; scrolls UP in other modes. Long press: toggles Loop mode; returns to home screen from Tone/Length mode; changes UOM or increases length constant in Settings mode.

VIDEO — Short press: continuity test on F-terminated coax cable; selects Video mode in Tone/Length. Long press: toggles Loop mode; returns to home screen from Tone/Length mode.

DATA / DOWN — Short press: wire map test on RJ45 cable; scrolls DOWN in other modes; repeatedly selects wire pairs in Tone/Length mode. Long press: toggles Loop mode; returns to home screen in Tone/Length; changes UOM or increases length constant in Settings.

TONE / HUB BLINK — Short press: cycles through available tone cadences (800 Hz, 1000 Hz, 1200 Hz, 1400 Hz, 1500 Hz, 800/1000 Hz alt, 1000/1500 Hz alt). Long press: initiates Hub Blink. ⚠ DO NOT use Hub Blink when connected to an active PoE port.

SETTINGS — First short press: enters Length Constant edit mode. Second short press: selects feet or meters (UP/DOWN to change). Long press: exits Settings and returns to home screen.

LENGTH / PoE — Short press: initiates cable length test (defaults to RJ45 port, first fault-free wire pair). Long press: initiates PoE test via the dedicated PoE port on the RIGHT SIDE of the tester.

POWER / BACKLIGHT — First short press: turns unit ON. Repeated short presses: toggle backlight. Long press: turns unit OFF. Auto power-off: 5 minutes of inactivity, or 60 minutes in Tone mode.

⚠ WARNINGS — Read Before Use

The PoE port (right side) is the ONLY jack designed for PoE-energized cables. Connecting an AC-energized cable to any port may damage the tester and pose a safety hazard.
Visually inspect RJ plugs before inserting. Contacts must be fully recessed into the plastic housing. A 6-position plug in the 8-position jack can damage the outer contacts.
Always wear approved eye protection.

🧪 Section 1 Knowledge Check

1. How long will the VDV Scout Pro 3 battery last in active use (without backlight)?

2. The tester will automatically power off after how many minutes of inactivity?

✅ Section 1 Complete!

Ports, Remotes & LCD Display

Ports on the Tester

Port	Location	Cable Types
RJ45	Top of tester	Data: Cat5e, Cat6, Cat6a, Cat7, Cat7a Ethernet
RJ11/12	Top of tester	Voice: POTS, 4-wire, 6-wire, 2–3 twisted-pair, Cat3
F-Connector	Top of tester	Video: coaxial RG6, RG6Q, RG59
PoE	RIGHT SIDE	PoE-energized RJ45 cables (802.3af / 802.3at) only

⚠ RJ Jack Sharing

The RJ jacks share internal connections — only one RJ cable at a time for accurate test results. An RJ cable and a coax cable MAY be connected simultaneously. In ID mode all connectors may be connected simultaneously.

Three Remote Types

Remote	Part No.	Connector	Functions
Self-Storing Test+Map™ #1	VDV501-210	RJ45, RJ11/12, F	Location ID and wire map/length tests. Included with all Pro 3 testers.
Test+Map™ #2–12	VDV501-2##	RJ45, F	Location ID and wire map/length tests. Multiple can be used to ID up to 12 locations per trip.
LanMap™ Location ID	VDV526-055	RJ45	Location ID only — cannot perform wire map or cable length tests.
CoaxMap™ Location ID	VDV512-056	F-connector	Location ID only — cannot perform wire map or cable length tests.

CAPACITY

Up to 19 cable locations can be identified per trip to the wiring closet using location ID remotes. VDV501-852 includes remotes #1–18.

LCD Display Indicators

The VDV Scout Pro 3 uses an extra-large backlit LCD — not a simple LED strip. The display shows multiple simultaneous indicators:

🔄

Mode Icons

Voice (handset), Tone (music note), Video (arrow), Tone mode, Data (network), Hub Blink

✅

Pass / Special

Pass, X-over (crossover), Rev (reverse-pinned voice), Shielded

❌

Fault Indicators

Fail, Short, Split, Open, PoE+, A/B wiring config

🔬

Measurement

Length in ft/m; PoE voltage; cable length readout

📷

Wire Map

Top row = tester-end pins 1–8; Bottom row = remote-end pins (dashes = short; absent = open)

🔋

Status

Location ID number, battery low icon, PoE error indicator

⚠ VOLTAGE CHECK

Before every test, the tester automatically checks for voltage on the RJ45 port. If voltage is found, no test runs and the lightning bolt symbol ⚡ illuminates. Disconnect immediately from the voltage source.

🧪 Section 2 Knowledge Check

1. Which remote type can perform BOTH location identification AND wire map/length tests?

2. The PoE port used for testing PoE-powered cables is located where on the VDV Scout Pro 3?

✅ Section 2 Complete!

Wire Map Testing — RJ45, Voice & Coaxial

Wire map testing checks that all conductors within a cable are properly connected from end to end and that each conductor is wired to the correct pin. The VDV Scout Pro 3 detects: Opens, Shorts, Split pairs, Miswires, Crossover wiring, and Reverse-pinned voice cables.

WIRE MAP RESULT INDICATORS

✅ PASS

T568A or T568B properly wired 4-pair data cable, or 3-pair one-to-one voice cable, or fault-free video cable.

⇄ X-OVER

Properly wired crossover (uplink) cable recognized.

← REV

Properly wired reverse-pinned voice cable.

🔒 SHIELDED

Shielded data cable properly connected at both ends. Flashing + “Short” = shield shorted to a wire.

❌ FAIL

Cable wiring does not match any recognized standard.

🏴 SHORT

Two conductors making contact. Dashed lines on remote row of LCD indicate shorted pins.

⛺ SPLIT

Wire pairs not maintained as pairs when terminated. Can exist without any miswires.

🔴 OPEN

No connection at one or both ends. Pin number absent from remote row of LCD indicates open pair.

⚠ An Open or Short fault takes precedence over miswires on the display. The Split icon illuminates if the cable does not maintain designated pairs (an AC signal fault).

Testing RJ45 / RJ11/RJ12 Cable — Step by Step

Connect one end of the cable to the RJ45 port (data) or RJ11/12 port (voice) at the top of the tester. For a wall port, use a known-good patch cable from the wall plate to the tester port.
Connect the other end to the corresponding port on the Test+Map™ remote. (Location-only ID remotes cannot be used for wire map testing.)
Press Button C (DATA) to test RJ45, or Button A (VOICE) to test RJ11/12.
The LCD displays the tester-end pins (top row) mapped to remote-end pins (bottom row). Interpret results using the fault indicators above.

Testing Coaxial (F-Connector) Cable

Attach the female-to-female Barrel Connector (VDV814-609) to the F-connector port on top of the tester.
Connect one end of the cable to be tested to the adapter.
For a terminated coax cable, attach a second Barrel Connector to the far end, then connect a CoaxMap™ or Test+Map™ remote. (Not required for an installed wall-plate cable.)
Press Button B (VIDEO) to begin the test.

⚠ COAX OPEN NOTE

An “Open” fault will also display when no remote is connected to the far end of a coax/video cable. This is normal — always connect a remote to test for continuity.

Simultaneous Continuity & Cable ID

Using numbered Test+Map™ ID Remotes, you can identify the cable location AND see wire map results in a single test. The LCD displays both the remote ID number and the pass/fail result simultaneously. Up to 12 locations per test trip using remotes #1–12.

🧪 Section 3 Knowledge Check

1. On the LCD wire map display, a pin number that is ABSENT from the remote-end row indicates:

2. Which remote type is required to perform wire map testing?

✅ Section 3 Complete!

Length Measurement, PoE Testing & Hub Blink

Cable Length Measurement

The VDV Scout Pro 3 measures cable length using the capacitive properties of the cable. One end is connected to the tester; the other end is left unterminated (open) or attached to the self-storing Test+Map remote. The tester measures the cable's capacitance and calculates length from the Length Constant setting.

LENGTH CONSTANT (pF/ft)

The Length Constant is the capacitance per foot of the cable being measured (picofarads per foot). Accuracy depends on matching this value to the actual cable. Default values:

Voice cables: 17.0 pF/ft
Data cables (RJ45): 15.0 pF/ft
Video cables: 15.0 pF/ft
Range: 10 pF/ft to 40 pF/ft — editable only in pF/ft mode (not pF/m)

Measuring Length — Data or Voice Cable

Press Button G (POWER) to turn on.
Connect one end to the RJ45 port (data) or RJ12 port (voice). Leave the other end unterminated.
Press Button F (LENGTH) to enter Length mode.
Press Button C (DATA) or Button A (VOICE) to begin. The first functional wire pair is selected by default. Press Button C repeatedly to select a different pair.
Read the measurement on the LCD. The display runs continuously.

Measuring Length — Coaxial Cable

Connect one end to the F-connector port. Leave the other end unterminated.
Press Button F (LENGTH), then press Button B (VIDEO) to begin.

⚠ LENGTH MEASUREMENT NOTES

If terminated with the self-storing remote, the reading will be 1–2 ft greater than the actual length. Subtract 1–2 ft from the display.
For best Length Constant accuracy, calibrate using a known length of at least 50 ft of the same cable type. A longer sample reduces uncertainty.
Length Constant can vary cable-to-cable, even from the same manufacturer and reel.
Changing the unit (ft/m): press Button E twice; use UP/DOWN to toggle.

Setting an Unknown Length Constant

Obtain a known length of cable (at least 50 ft recommended) of the same type.
Set up the tester for length measurement on the correct cable type.
Press Button E (SETTINGS) to enter Edit mode.
Use Button A (UP) and Button C (DOWN) in 0.1 pF increments until the displayed length matches the known length.

PoE Testing (Power over Ethernet)

⚠ USE THE DEDICATED PoE PORT

PoE testing MUST use the PoE port on the RIGHT SIDE of the tester — NOT the standard RJ45 port on top. Connecting PoE cable to the wrong port displays a warning with an arrow pointing to the correct port.

Connect the PoE-powered cable (RJ45) to the PoE port (right side).
Long press Button F (LENGTH/PoE) to initiate the PoE test.
If power is present, the voltage (lightning bolt) icon and PSE voltage will display.
“PoE” (802.3af, up to 15.4W) or “PoE+” (802.3at, up to 30W) will display.
Wiring configuration will display: “A”, “B”, or “AB”.

Hub Blink Function

Hub Blink causes the switch/hub port LED to blink, making it easy to identify which port a cable is connected to on the back of a switch.

Insert an RJ45 cable into the RJ45 port (top); connect the other end to the hub, switch, or router.
Long press Button D (TONE/HUB BLINK) for more than 1 second.
“HUB” will appear on the LCD and blink in sync with the signal being transmitted.

🚫 DO NOT use Hub Blink when connected to an active PoE port.

Hub Blink on an active PoE port can damage the tester.

🧪 Section 4 Knowledge Check

1. The VDV Scout Pro 3 measures cable length using which method?

2. When initiating a PoE test, you must long-press Button F. Which port must the PoE cable be connected to?

✅ Section 4 Complete!

Cable Identification & Tone Tracing

When cables branch out from a wiring closet without labels, the VDV Scout Pro 3 provides two identification methods: digital ID with location remotes, and analog tone generation with a separate probe.

Method 1: Digital Location ID with Remotes

Place numbered location ID remotes at each outlet, then take the tester to the distribution point (wiring closet, router, or switch). Test each unknown cable — the LCD displays the remote ID number, telling you exactly which room the cable connects to. Up to 19 locations per trip.

      IDENTIFYING INSTALLED RJ45 CABLE
      Insert numbered LanMap™ or Test+Map™ remotes into the RJ45 port at each room. Note numbers and room names.
Take tester to the wiring closet / router.
Connect an unknown cable to the RJ45 port on the tester.
Press Button C (DATA). The LCD shows “ID#” — match the # to your room list.
Repeat for each unknown cable; label each with tape.

    

      IDENTIFYING INSTALLED COAX CABLE
      Insert numbered CoaxMap™ or Test+Map™ remotes into the F-connector port at each room.
At the cable splitter/wiring closet, attach the Barrel Connector to the F-connector port on the tester.
Connect each unknown cable to the Barrel Connector. Press Button B (VIDEO). LCD shows “ID#”.

    

Method 2: Analog Tone Generation

The built-in tone generator places a low-frequency signal on the cable. An analog tone probe (Klein Tools VDV500-123, sold separately) then identifies the cable by the tone it carries. This technique traces one cable at a time but works on unterminated cables of non-standard types.

Tone	Frequency
Solid tone 1	800 Hz
Solid tone 2	1000 Hz
Solid tone 3	1200 Hz
Solid tone 4	1400 Hz
Solid tone 5	1500 Hz
Alternating	800 Hz / 1000 Hz
Alternating	1000 Hz / 1500 Hz

      TONE TRACING ON RJ45/RJ11/RJ12 CABLE
      Connect a known-good patch cable to the RJ45 or RJ12 port and to the wall port at the satellite location.
Short press Button D (TONE) to initialize. Press repeatedly to cycle through tones.
For voice toning: press Button A to change which pins/pairs carry the tone. For data: press Button C.
Use the analog tone probe at the distribution point — tone is loudest on the cable connected to the tester.

    

🧪 Section 5 Knowledge Check

1. Using location ID remotes, how many cable locations can the VDV Scout Pro 3 identify in a single trip to the wiring closet?

2. The tone generation method differs from location ID remotes because it:

✅ Section 5 Complete!

Safety, Maintenance & Troubleshooting

⚠ CRITICAL SAFETY RULES

NEVER connect an AC-energized cable to any port other than the PoE port.
Visually inspect all RJ plugs before insertion — contacts must be recessed in the housing.
NEVER use Hub Blink while the tester is connected to an active PoE port.
Always wear approved eye protection.
If the lightning bolt symbol (⚡) appears, disconnect immediately from the voltage source.

Battery Replacement

Loosen the Phillips No. 2 screw and remove the battery cover.
Remove and recycle the exhausted battery.
Install a new 9V alkaline battery — route wires under the battery, toward the inside of the housing.
Replace the battery cover and tighten the screw. Do not overtighten.

⚠ BATTERY LOW INDICATOR

The battery low icon (🔋) illuminates when the battery needs replacement. Results may be unreliable once this icon appears.

Cleaning & Storage

Clean with a damp cloth only. Do not use abrasive cleaners or solvents.
For storage longer than a few weeks, remove the battery to prevent leakage damage.
Do not expose to high temperatures or humidity during storage.
After storage in extreme conditions, allow the instrument to return to normal operating conditions before use.

Common Troubleshooting

Symptom	Likely Cause	Action
No display when powered on	Dead or missing battery	Install a fresh 9V alkaline battery
Lightning bolt (⚡) on display	Voltage detected on test cable	Disconnect immediately; verify cable is de-energized
Length reads 1–2 ft too long	Self-storing remote attached to far end	Subtract 1–2 ft; or remove remote for accurate open-end reading
Length is significantly off	Incorrect Length Constant	Calibrate using a known length of the same cable type
Open fault shown; cable looks correct	Remote not connected, or bad connector crimp	Verify remote is seated; re-examine crimp terminations
Split pair indicated; no miswire	Pair members separated during termination	Re-terminate; keep pairs twisted to within spec
PoE not detected	Wrong port used, or no PoE source	Verify cable is in PoE port (right side); verify switch has PoE enabled
HUB not blinking	PoE active on port, or cable not to managed equipment	Do NOT use Hub Blink on PoE port; ensure cable connects to a switch/hub

🧪 Section 6 Knowledge Check

1. When replacing the battery, the wires should be routed:

2. The lightning bolt symbol (⚡) appearing on the display means:

✅ Section 6 Complete!

🎓

Five 9s Communications

Certificate of Completion

Official Training Record

This certifies that

has successfully completed

Klein VDV Scout™ Pro 3
Cable Tester Training

Date Completed Score StatusPASSED ModelVDV501-852/853