Filter
Top Products
18
Ancillary Module extends Optical Fiber Testing to Distance-to-Fault
The ODTF-1 module is primarily intended for field use by technicians and engineers responsible for the deployment and
maintenance of remote radio heads (RRH), and nicely complements the field diagnostic power of the VNA Master. The ODTF-1
module is fully compatible with the MS202x/3xC VNA Masters which are equipped with the Time Domain Option 0002 or
Distance Domain Option 0501. Field operation of the ODTF-1 module with the VNA Master requires the normal DTF (RF/
microwave) mode along with simple modification of some of the setup parameters such as Vp, cable loss, and frequency.
VNA Master users need only to connect a short cable between
the RF output of the VNA and the ODTF-1 module and
perform a 1-port calibration at the end of the cable. Essentially
the ODTF-1 module is simply a wavelength translator, RF test
signals in, RF signals returning. The same physics that apply to
the traditional DTF measurements apply to ODTF-1 meaning
highly accurate measurements can be made with event
resolution as good as 10 cm. The same trade-offs carry over as
well so better event resolution translates to shorter maximum
distance, and vice-versa. Max distance is specified at 1020
meters (3345 ft).
The battery life of the ODTF-1 module matches the battery life
of the VNA Master. It can be charged with the same 40-168-R
power supply so there is no need to maintain different power
supplies.
Using a VNA Master equipped with Option 0002 or 0501, this ODTF-1 optical module
translates the optical signals to the RF domain of the VNA, to display fault locations in
standard optical fibers.
Wavelength
1550 nm typical
Frequency Range
1 GHz to GHz
Fiber Type
Single Mode Fiber (SMF)
Event Resolution
10.2 cm (0.335 ft) maximum, or 150/(n*∆F), ∆F in MHz, n
is IOR
Horizontal Range
1020 meter (3345 ft) maximum, or (#dp-1)*Event Resolution
Optical Dynamic
Range
30 dB
Optical Output Power
3 dBm typical
Specifications
RF Connector
N(m)
Max RF Input Power
+ 5 dBm
Optical Connector
FC/APC
Input and Output Ports
External DC Input
+12.5 to +15 VDC, 3A maximum
Electromagnetic
Compatibility
Meets European Community requirements for CE marking
Temperature
Operating
0 to 50 ºC
Non-operating
0 to 70 ºC recommended
General Specifications
Size
15.7*5.37*18.6 cm (6.18*2.11*7.3 in.)
Weight
< 1 kg (2.2 lbs)
Size and Weight