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M-UM007-03
The DLS 355 dual laser source is a single-mode test laser 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 offer tips for troubleshooting common issues in
optical networks.
Wavelength Indicator
Connector
Adapter
Low Battery
Indicator
2 kHz Button
Power Button
2
4
1
3
5
Wavelength
Button
6
External
Power Port
7
1. Connector Adapter - Interchangeable
The DLS 355 comes with an SC screw-on adapter. Additional adapters are available from
Ripley. Refer to page 5 for more information.
2. Wavelength Indicator
This unit offers 1310 nm and 1550 nm wavelengths. When the DLS 355 is turned on, the red
light indicates which wavelength is selected. The red light blinks to indicate when the 2 kHz
modulation is turned ON.
3. Low Battery Indicator
A red indicator light appears when the CR2 battery power is low. Replace or recharge the
battery, depending on the battery type, to return to normal operation of the DLS 355.
4. Power Button
Use the power button to turn the DLS 355 ON and OFF. The unit will turn off automatically after
15 minutes. To bypass auto-shutoff, hold the power button for 5 seconds when turning ON.
5. 2 kHz Button
The 2 kHz button toggles the modulation of currently-selected wavelength output. The
laser flashes at 2000 times per second to provide a recognizable signal to a companion
power meter. Output power of the laser is reduced by 3 dB when the modulation is active.
6. Wavelength Button
The wavelength button switches between the 1310 nm and 1550 nm wavelength.
7. External Power Port
The port accepts the AC 030 power supply. The power supply is not a battery charger - just a
battery bypass.
Important Safety Information
WARNING!
Read and understand all of the instructions and safety information in this manual
before operating this tool.
