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The Exfo ELS-500 Series light source are handhelds built for top ruggedness, perfect for the harshest test conditions. They feature a keypad/LCD backlight, for easy operation in darker environments, rechargeable batteries and interchangeable connectors. Exfo ELS-500 testers help you achieve first-class testing and certification of private/enterprise/premises networks. These products are part of EXFO's series of FTTx optical test products. They allow for the testing of passive optical networks (PONs) at the three main wavelengths (1310, 1490 and 1550 nm) used in fiber-to-the-home (FTTH) and fiber-to-the-premises (FTTP) networks and complies with the ITU-T G.983 and G.984 Recommendation series and the IEEE 802.3ah standard. The EXFO’s ELS-500 light source provides excellent stability and high measurement accuracy for two singlemode wavelengths (1310 or 1550 nm) on a single port, or four wavelengths (850/1300 nm and 1310/1550 nm) on two ports. It is the perfect complement to the EPM-500 Power Meter when it comes to measuring attenuation on fiber-optic links. When used with the EPM-500 Power Meter, tone generation is just a button away. The ELS-500 has the highest singlemode output power in the industry. Central wavelength (nm): 850 ± 25 / 1300 +50/-10 (ELS-500-12D), 1310 ± 20 / 1550 ± 20 (ELS-500-23BL), Spectral width (nm): 50/135 (ELS-500-12D), Output power (dBm):>= -20/>=-20 (62.5/125 µm) (ELS-500-12D), = 1/= 1 (ELS-500-23BL). Automatic wavelength switching: Yes, Tone generation: 270 Hz, 1 kHz, 2 kHz, Battery life (hours) (typical in Auto mode): 50.
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