M-UM008-01 Page 1
DLS 350 Dual LED Source
Device Manual and Quick-Start Guide
The DLS 350 dual LED source is a multimode test LED used for verifying the proper function
of fiber optic networks. This document will serve as an overview of the major features and
functions of the device and will offer tips for troubleshooting common issues in optical
networks.
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1. Connector Adapter - Interchangeable
The DLS 350 comes with an SC screw-on adapter. Additional adapters are available from ODM; see
page 4 of this document for more information.
2. Wavelength Indicator
This unit offers 850nm and 1300nm wavelengths. When the DLS 350 is turned on, the red
light indicates which wavelength is selected. The red light will blink to indicate when the 2kHz
modulation is turned ON.
3. Low Battery Indicator
A red indicator light will appear when the CR2 battery power is low. Replace the battery to return
to normal operation of the DLS 350.
4. Power Button
Press this button to turn the DLS 350 ON and OFF. The unit will turn off automatically after 15
minutes. To bypass the auto-shutoff, hold the power button for 5 seconds when turning ON.
5. 2kHz Button
Toggles 2kHz modulation of currently-selected wavelength output. LED flashes at 2000 times per
second to provide a recognizable signal to a companion power meter. Output power of the LED is
reduced by 3dB when the modulation is active.
6. Wavelength Button
Switches between the 850nm and 1310nm wavelength.
7. External Power Port
Accepts AC 030 power supply. Power supply is not a battery charger, just battery bypass.
Device Overview
