User's Manual

ModuLite™ Installation Guide OPTICAL TEST PROCEDURE
Foxcom Wireless Confidential and Proprietary Information
Document No. 43-93-005-05 X1 57
8.4.2. Method #2: Single Point Test
Connection description: This method assumes that there are two parallel fibers on the path to be
tested. Connect fiber jumper at end of the cable being tested to another parallel cable. Connect
the light source, optical power meter and optical jumper as shown in Figure 33. This
measurement can test two cables simultaneously.
Figure 33: Single Point Test
1. Use optic jumper to connect the two cables.
2. Connect light source directly to the optical power meter.
3. Measure the power of light source signal , verify power of 0dBm.
4. Connect a light source and optical power meter to one end of each cable.
5. Measure the power of the signal.
6. Calculate the difference between the two signals in dB:
8.4.3. Other Test Equipment
The optical insertion loss measurement test can be performed with more sophisticated
measurement equipment.
For information on other types of test equipment contact Foxcom Wireless.
(Insertion loss)dB =(Light source signal)dBm– (Measure signal)dBm
Light
source
Optical
power
meter
Connector
Fiber optic jumper