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SwiftAXT (Sweep Interleaved Frequency Domain Testing of Alien X-Talk)
technology achieves sequential measurements through control of measurement
timing.
The Stimulator is a high performance, low cost, palm size frequency generator
that doubles as a load termination for use in Alien Crosstalk measurements.
For cable vendors, it is for the usage in the lab to have better yield in the
manufacturing mass test of the 10Gbps cables.
For cable installers, it is aimed for the new 10GbE installation and the
upgrade of the existing network. The cable vendors need to have a better yield
in the 10G cable manufacturing mass test and ideally the test is to be done
within a short time, 2 minutes or less per link.
To cable installers who perform the new installation in the field, high
success rate in the network implementation is crucial and it boosts the work
efficiency if the job could be done with short test time.
To cable installers who carry out the upgrade of existing network, it is
expected to have better yield in the asset upgrade and the task is to be done in
short period of test time.
The cable installers need to:
• Evaluate a cable and verify its
alien cross-talk performance meets requirements for 10GBASE-T.
• Find
out the worst disturbing cable from a group of cables affecting a disturbed
cable.
• Find out the cable that is most vulnerable to Alien
Crosstalk.
Operation Modes
• Stimulator supports frequency sweep (transmit),
termination and calibration modes.
• For each configuration, Stimulator will
support the following use models:
Frequency Sweep Initiated by the Local Unit
• In this mode, Stimulator
will make continuous sweeps from 1 – 500 MHz. It will set the Remote Stimulator
in termination mode.
• Local Stimulator can set Remote Stimulator to generate
continuous sweeps. In this case, the Local Stimulator will automatically set in
termination mode.
• Both Stimulator units cannot sweep simultaneously.
However, both Stimulator units can be in termination mode at the same time.
•
Red LED – Fault. Restart Stimulator.
• Green LED –Transmit Mode
• Amber
LED – Termination Mode (100 Ohms)
Test Initiated by the Remote Unit
• Details same as test initiated by
Local Stimulator
Use Model
• The Stimulator has a simple user interface with two buttons
and two LED indicators.
• The unit is powered ON/OFF using the Power
button.
• The Mode button sets the operation mode of the Stimulator units.
Only one Stimulator per cable can be transmit mode, but both Stimulators can be
in termination mode at the same time.
Communications
• Local Stimulator at power ON:
- Defaults to
termination mode (Local LED – Amber)
- Waiting for remote stimulator to
response (Local LED – blinking Green)
• Remote Stimulator at power
ON:
- Defaults to termination mode (Local LED – Amber)
-
Waiting for remote stimulator to response (Local LED – blinking Green)
• If
the handshake between the Local and Remote Stimulator units is successful, then
Remote LEDs for both Stimulator units will be solid Amber.
• The following
Mode sequencing is applicable for both Stimulator units (upon successful
handshaking):
- Pressing the Mode button on Local Stimulator will cause
Local Stimulator to instruct Remote Stimulator to go into termination mode (if
it is not in termination mode).
• Pressing the Mode button again, will cause
local Stimulator to change into termination mode, and instruct the remote
Stimulator to sweep (transmit).
• Pressing the Mode button again, will cause
both Stimulator units to go into termination mode.
• This pattern
repeats.
• LEDs will change to reflect current status for both Stimulator
units.
• The unit is switched OFF by holding down the Power button for 5
seconds.
Specifications
Alien Crosstalk Stimulator RF Output
• RF frequency range: 1 MHz to 500
MHz
• RF output power: 0.5dBm ±1.0dBm
Electrical Specification
• DC Input: 12 V, 0.5A (Use AC/DC adaptor
provided with unit)
• AC Power adapter: 100 – 240V ac (Use AC/DC adapter
provided with unit)
• Battery: 9V Battery, not supplied (recommended capacity
at least 250 mAh)
Environmental Specification
• Operating temperature range: 10°C to +
40°C
• Storage temperature range: - 40°C to +70°C
• Maximum humidity: 95%
relative humidity for temperatures to 31° C
• Operating Power: 1.3W (Existing
AXT :130mA @ 10V)
Physical Dimensions
• Size 5.5” x 3.6” x 1.1” (140 x 91.4 x 27.9 mm)
•
Weight 0.35 lb (160g)
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