Technical Specifications
250
AXS-200/635
POWER SPECTRAL DENSITY (PSD) NOISE MEASUREMENT
Test type
Continuous or peak-hold
Vertical scale
–10 dBm/Hz to –145 dBm/Hz or +20 dBm to –110 dBm
Horizontal scale
4.3125 kHz to 17 MHz, in 4.3125 kHz steps or 8.625 kHz to 30 MHz, in 8.625 kHz steps
Noise filters
None or E, F, G, VDSL2-8, VDSL2-12, VDSL2-17 and VDSL2-30
DSL IMPULSE NOISE MEASUREMENT
Threshold
–50 dBm (40 dBrn) to 0 dBm (90 dBrn) in 1 dB steps
Counter
Maximum 65 000
Test duration
1, 5, 10, 15 and 60 min, 24 h or continuous (up to 360 h)
Histogram plot interval
1, 5, 10, 15 or 60 min
Uncertainty (accuracy) (dB)
±2
SWEPT LONGITUDINAL BALANCE TEST
Frequency uncertainty (accuracy) (ppm)
±50
Level uncertainty (accuracy)(dB)
±2.0
Vertical scale (dB)
0 to 80.0 up to 2.2 MHz
0 to 60.0 up to 30 MHz
Horizontal scale
ADSL/2+: 26 kHz to 2.2 MHz
SHDSL: 26 kHz to 1 MHz
VDSL/VDSL2-12: 26 kHz to 12 MHz
VDSL2-17: 26 kHz to 17.66 MHz
VDSL2-30: 26 kHz to 30 MHz
DIGITAL MULTIMETER (DMM)
Measurement
Range
Resolution
Uncertainty (accuracy)
DC voltage
0 to 200 V
1 V
the better of ±2 % or ±1 V
AC voltage
0 to 140 Vrms
1 V
the better of ±2 % or ±1 V
Resistance
0 to 999 M
Ω
3 digits
0 to 999
Ω
the better of ±2 % or ±5
Ω
1 k
Ω
to 99 M
Ω
±(2 % + 1 digit)
100 M
Ω
to 999 M
Ω
±(5 % + 1 digit)
Distance up to 30 000 m (100 000 ft)
Capacitance
1 nF to 10
µ
F
3 digits
±(2 % + 1 digit)
Distance up to 30 000 m (100 000 ft)
DC current
0 to 110 mA
1 mA
±(2 % + 1 digit)
AC current
0 to 77 mA
1 mA
±(2 % + 1 digit)
SPECTRAL DETECTIVE
Allows the AXS-200/635 to bridge (high-impedance) onto a live circuit to display a plot of transmitted levels and spectrum (PSD). The Spectral Detective test can
be referenced to any user-selected impedance. The impedance reference setting is required to display proper readings in dBm/Hz or dBm.
Test type
Continuous or peak-hold
Bridging impedance
15 k
Ω
Vertical scale
–10 to –145 dBm/Hz or +20 to –110 dBm
Horizontal scale
4.3125 kHz to 17 MHz, in 4.3125 kHz steps or 8.625 kHz to 30 MHz, in 8.625 kHz steps
Noise filters
None or E, F, G, VDSL2-8, VDSL2-12, VDSL2-17 and VDSL2-30
STRESS/LEAKAGE (ISOLATION RESISTANCE)
Source
100 VDC, current safely limited to < 1.0 mA
Range (M
Ω
)
0 to 999 auto-ranging
Resolution
3 significant digits
Uncertainty (accuracy)
0 to 999
Ω
, the better of ± 1 % or ±5
Ω
1 k
Ω
to 99 M
Ω
, ±(1 % + 1 digit)
100 M
Ω
to 999 M
Ω
, ±(5 % + 1 digit)
Soak timer (s)
1 to 99
RESISTIVE FAULT LOCATION (RFL)
Test type
Single pair and separate good pair
Fault detection (M
Ω
)
0 to 20
Resolution
3 digits
Loop resistance (k
Ω
7 maximum
Multiple cable sections
Five (includes gauge and temperature setting)
Fault location
*Total resistance, near-end to fault resistance, fault to strap resistance (four significant digits)
*Total length, distance to fault, distance from fault to strap (3 ft/1 m resolution)
Uncertainty (accuracy)
The better of 0.2
Ω
or ±2 %
