Exfo FTB-635 Wideband Copper and DSL Test Module Uživatelský manuál stáhnout pdf (Strana 363)

Technical Specifications

Copper and xDSL Tests 355

COPPER SPECIFICATIONS

a, b, c

(continued)

Isolation resistance (stress/leakage) (continued) Source 50 V to 500 V (current safely limited to 0.5 mA)

Soak timer 1 s to 59.9 min

VF noise measurement Frequency range 200 Hz to 20 kHz

Level range –90 dBm to 20 dBm

Resolution 0.1 dB

Uncertainty (accuracy) –90 dBm to –50 dBm, uncertainty (accuracy) ±2 dB

–50 dBm to 20 dBm, uncertainty (accuracy) ±1 dB

Filters ITU: none, psophometric, P-notched, 3.4 kHz, D-filter, 15 kHz

ANSI: none, C-message, C-notched, 3.4 kHz, D-filter, 15 kHz

Impedance 600 1

VF impulse noise Low threshold –40 dBm to 0 dBm, in 1 dB steps

Mid threshold Low threshold plus separation

High threshold Mid threshold plus separation

Test duration Minutes: 1, 5, 10, 15, 30, 60

Hours: 4, 8, 12, 24, 100

Separation 1 dB to 6 dB, in 1 dB steps

Dead time 125 ms

Filters None, 3 kHz flat, C-message, psophometric,

notched and D-filter (IEEE 743-1995)

Counter Maximum 999 for each threshold

Timer 1 min to 24 h, default is 15 min

Power influence (noise to ground) Noise range –60 dBm to 10 dBm

Uncertainty (accuracy) –60 dBm to –50 dBm ± 2 dB

–50 dBm to 10 dBm ± 1 dB

Graphical display Third triplet harmonics to 20 kHz

VF longitudinal balance Frequency 1004 Hz

Level range 0 dB to 100 dB

Level uncertainty (accuracy) ±1 dB

Impedance 600 1

Time-domain reflectometer (TDR) Modes Automatic, Manual, and Crosstalk (Xtalk) operation with location of most significant event(s)

Distance range 0 m to 6700 m (0 ft up to 22 000 ft) on 24 AWG (0.5 mm) cable

Pulse width 15 ns to 20 μs (automatic control)

Amplitude 7.5 V p-p on cable, 9 V p-p open circuit

Velocity of propagation (VOP) 0.40 to 0.99

Distance uncertainty (accuracy)

±(0.5 m + 1 % x distance)

Units Meters and feet

NOTES

a. Subject to change without notice.

b. Typical, at 23 °C ± 3 °C, on batteries, with no USB connection.

c. Specifications based on 24 AWG (PE 0.5 mm) cabling.

d. From 10 mA to 110 mA.

e. Qualified up to 300 m (1000 ft) and does not include the uncertainty due to VOP.

asur

ang

solutio

ncertainty (accuracy

)

voltage 0 to 400

for 0 to 99.9

r 100 t

400

±(|1 %| + 0.5 VDC)

voltage 0 to 280

rms

.1 VA

for 0 to 99.9 VA

VAC for 100 to 280 VAC

(

1 % + 0.5 VAC

)

on res

stance

(

stress/leaka

0 to 1

, auto-rang

99 M

100 M

to 999

ree

igit

±(2 % + 1 di

it)

(

5 % + 1 digit

)

stanc

0 to 100

999

1 k1 t

100 M1

ree

igit

(

1 % + 5

)

(

2 % + 1 di

)

apacitance 0 nF to 2 μF

our

igit

±(2 % + 50 pF)

current 0 t

110 m

.1 m

±(|2 %| + 1 mA

)

curren

0 to 110 m

.1 m

(

|2 %|+ 1 mA

)

tation Ground 0 to 1 M1

to 999

1 M

p to t

ree

igit

(

1 % + 3

)

±(2 % + 1 di

it)

1 2 ... 358 359 360 361 362 363 364 365 366 367 368 ... 372 373

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