Related Manuals for Wandel & Goltermann OLP-5
Summary of Contents for Wandel & Goltermann OLP-5
- Page 1 OLP-5, OLP-6, OLP-8 Optical Power Meters BN 2256/01, Series A ... BN 2256/02, Series G ... BN 2256/03, Series G ... Operating Manual...
- Page 2 Please direct all enquiries to your local Wandel & Goltermann sales company. The addresses are given at the end of this handbook. Wandel & Goltermann GmbH & Co. Elektronische Meßtechnik Mühleweg 5, D-72800 Eningen u. A. © 1999 Author: MDD/TD Translator : Gary Hess Order no.: 2256/98.11 Edition: 04/99.03, A ...
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Page 3: Table Of Contents
Contents 1 Description Features and applications ..1-1 1.1.1 Common features ... . 1-1 1.1.2 Differences between the devices ....1-2 2 Safety Information 3 Preparing for Operation Unpacking the device . - Page 4 6 Specifications OLP-5 ..... 6-1 OLP-6 ..... 6-2 OLP-8 .
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Page 5: Description
These battery-powered devices are ideal for use in installing and maintaining LAN, TELECOM and CATV systems. The OLP-5 and OLP-6 power meters can connect to single-mode and multimode fibers with a max. core diameter of 100 µm. The OLP-8 works only with single-mode fibers having a core diameter of 9 µm. -
Page 6: Differences Between The Devices
Differences between the devices All of the power meters are calibrated at 850 nm, 1300 nm (or 1310 nm) and 1550 nm. The OLP-5 has an additional calibrated wavelength of 820 nm, which makes it ideal for datacom applications. The OLP-6 has additional calibrated wavelengths of 780 nm and 1310 nm. - Page 7 The receive level is too low. • The wavelength encoding cannot be detected due to interference. • You are measuring the absolute level of a system that does not have wavelength encoding like Wandel & Goltermann’s power sources. OLP-5, OLP-6, OLP-8...
- Page 8 Notes: OLP-5, OLP-6, OLP-8...
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Page 9: Safety Information
⇒ Also note the specified measurement range! Tests prior to power-on ⇒ Before powering up the device, always make sure that it is in proper working order. See Sec. 3.1 for more information. OLP-5, OLP-6, OLP-8... - Page 10 The OLP is designed to measure optical radiation in the wavelength range 780 to 1700 nm. In this range, radiated power levels can occur that fall outside of the non-critical Laser Class 1 and thus represent a hazard to the user. OLP-5, OLP-6, OLP-8...
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Page 11: Preparing For Operation
Doing so can cause further damage. Recovery following storage and transport Condensation can occur if a device that is stored or transported at a low temperature is brought into a warm room. To avoid damages, wait until OLP-5, OLP-6, OLP-8... -
Page 12: Shock Protection
Two 1.2 V NiCd cells (AA size), operating life typ. 40 hours Capacity display After the device is powered up, the remaining battery life or NiCd charge is displayed as a percentage. The display is broken down in steps of 5%. OLP-5, OLP-6, OLP-8... - Page 13 BAT indicator with low batteries Once this remaining operating life elapses, the display switches off except for the BAT indicator. About 15 seconds later, BAT disappears as well and the device powers down to prevent the cells from fully discharging. OLP-5, OLP-6, OLP-8...
- Page 14 Exchanging the batteries or NiCd cells You can access the battery compartment even when the shock protector is installed. Fig. 3-4 OLP battery compartment, rear of device OLP-5, OLP-6, OLP-8...
- Page 15 (quick charge, trickle charge). Notice: Due to natural discharging effects and leakage currents in the device, the NiCd cells will lose all of their charge in about one month even if you never switch on the OLP. OLP-5, OLP-6, OLP-8...
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Page 16: Test Port
The adapter is normally screwed onto the diode mount. You can remove it without any special tools in order to clean or inspect the photodiode. OLP-5, OLP-6, OLP-8... - Page 17 3. Slide the ferrule (B) all the way into the universal adapter (C). The test connection is now ready. Notice: To avoid shifting the position of the fiber with respect to the photodiode (D) during measurements, avoid jerky movements and do not pull on the cable. OLP-5, OLP-6, OLP-8...
- Page 18 Fig. 3-5 OLP test port with universal adapter Tip: To avoid soiling or scratching the photodiode, unscrew it only when you need to inspect or clean it. See Sec. 5. OLP-5, OLP-6, OLP-8...
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Page 19: Powering The Device On And Off
The device is ready to operate as soon as a measured value is displayed along with the other indicators. Power-off ⇒ Press the “ON/OFF” key within 20 minutes of power-on. – or – The device automatically switches off 20 minutes after it is powered on. OLP-5, OLP-6, OLP-8... - Page 20 ⇒ Press the “ON/OFF” key for about two seconds. The OLP powers on. Fig. 3-7 The device is now ready to go! It is in permanent operating mode, and the “PERM” indicator appears. Power-off ⇒ Press the “ON/OFF” key. The OLP powers off. 3-10 OLP-5, OLP-6, OLP-8...
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Page 21: Operation
Operation Controls and display elements Fig. 4-1 OLP front-panel view with controls and display elements OLP-5, OLP-6, OLP-8... - Page 22 (five) possible wavelengths. Additionally from series F on: Activates auto. wavelength detection. • Short keypress: Switches between absolute and relative power level display • Long keypress: Stores a reference power level Table 4-1 OLP elements, see Fig. 4-1 OLP-5, OLP-6, OLP-8...
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Page 23: Connection Configuration
In system power level measurements, the absolute power level is measured in dBm. System levels can be measured at the transmitter output Tx or before the receiver input Rx, for example. Trans- ceiver Fig. 4-2 System power level measurement OLP-5, OLP-6, OLP-8... -
Page 24: Attenuation Measurement
(at the near end). You can use the OLS-5 as your source. An attenuation measurement breaks down into two steps: 1. Reference power level measurement 2. Relative power level measurement (attenuation) Fig. 4-3 Two-step attenuation measurement OLP-5, OLP-6, OLP-8... -
Page 25: Setting The Wavelength
The wavelengths provided in the power meters depend on the intended application area: • OLP-5: 820 / 850 / 1300 / 1550 nm • OLP-6: 780 / 850 / 1300 / 1310 / 1550 nm •... -
Page 26: Power Level Display In Dbm, Db
⇒ Press the “λ” key until the desired wavelength or “AU” mode (from series F onwards) is displayed. (Circular function) Fig. 4-4 Setting the wavelength, e.g. with the OLP-5; “AU” means automatic wavelength detection is activated Power level display in dBm, dB When the OLP is powered up, the power level present at its test port is displayed immediately. - Page 27 Absolute power level display in dBm. Evaluation of unmodulated light (the modulation frequency field is empty) Absolute power level range • OLP-5: -60 to +5 dBm • OLP-6: -65 to +10 dBm • OLP-8: -50 to +23 dBm The display resolution is 0.01 dB;...
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Page 28: Storing A Reference Level
“dBm/dB” key. (Toggle function) Fig. 4-6 Relative power level display in dB Display range with a -20 dBm reference level • OLP-5: -40 to +25 dB • OLP-6: -45 to +30 dB • OLP-8: -30 to +43 dB Storing a reference level... -
Page 29: Measuring Modulated Light
270 Hz, 330 Hz, 1 kHz and 2 kHz. If one of these frequencies is detected, it appears in the LC display. Fig. 4-8 Measuring modulated light. An indicator appears in the modulation frequency field. OLP-5, OLP-6, OLP-8... - Page 30 Two hyphens appear instead. Fig. 4-9 Modulation frequency field for very low levels The limits for reliable modulation frequency detection depends on the wavelength. They are specified in Sec. 6.1, Sec. 6.2 and Sec. 6.3. 4-10 OLP-5, OLP-6, OLP-8...
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Page 31: Twintest" Mode
The procedure is analogous with the other devices named above.) 1. Reference measurement Requirements: Connect the OLP-5 to the OLS-5 via an optical cable, e.g. K 30xx. Both devices must be powered up and ready to go. The OLS-5 should be in dUAL mode. - Page 32 ⇒ Insert the DUT between the OLS-5 and OLP-5. The attenuation values for the DUT at 850 nm and 1300 nm are displayed in alternation at 4 s intervals on the OLP-5. Fig. 4-10 Attenuation display in TWINtest mode 4-12...
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Page 33: Maintenance
(e.g. anti-dust spray available in cans). 5. Screw the adapter back on. 6. Pop the cover back on. Tip: To avoid premature soiling of the assembly, keep the adapter in place and the cover closed when you are not making measurements. OLP-5, OLP-6, OLP-8... -
Page 34: Service Information
Expect decreased measurement accuracy. 1. Acknowledge the error message by pressing any key. 2. Power off the device. 3. Contact your nearest WG Service Center. Addresses are found at the end of this manual. OLP-5, OLP-6, OLP-8... -
Page 35: Specifications
270 Hz, 330 Hz, 1 kHz, 2 kHz in power level range 820, 850 nm -45 to +5 dBm 1300, 1550 nm -50 to +5 dBm Sensor Photodiode Germanium Connectable fiber types 9/125 to 100/140 µm OLP-5, OLP-6, OLP-8... -
Page 36: Olp-6
In combination with the OLS-5, OLS-6, OLS-15 for wavelengths of 780, 850, 1300, 1310, 1550nm in power level range 780, 850 nm -45 to +10 dBm 1300, 1310, 1550 nm -50 to +10 dBm Automatic wavelength detection can be switched OLP-5, OLP-6, OLP-8... - Page 37 Max. allowable power level +10 dBm ±0.13 dB (±3%) Intrinsic meas. error ±0.06 dB Linearity (+5 to -55 dBm) Under the following reference conditions: -20 dBm (CW), 1310 nm ±1 nm, 23 °C ±3 °C, 45 to 75% rel. humidity OLP-5, OLP-6, OLP-8...
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Page 38: Olp-8
Modulation detection for frequencies of 270 Hz, 330 Hz, 1 kHz, 2 kHz in power range 980 nm -30 to +23 dBm 1310, 1480, 1550 nm -35 to +23 dBm Sensor Photodiode Germanium Connectable fiber 9/125 µm types OLP-5, OLP-6, OLP-8... -
Page 39: Common Specifications
Separate memory is provided for each wavelength. The stored values are retained even if the device is switched off. Optical connector UPP adapter 2.5 mm ferrule Connector all connectors with 2.5 mm ferrules, e.g.: DIN, ST, SC, FC, E2000 OLP-5, OLP-6, OLP-8... -
Page 40: General Specifications
1 to 29 g/m Occasional condensation is tolerable as a limit condition. Dimensions and weight Weight approx. 180 g Dimensions (w x h x d) 73 x 140 x 28 mm Calibration interval Recommended calibration interval 3 years OLP-5, OLP-6, OLP-8... -
Page 41: Ordering Information
Ordering Information OLP-5 Optical Power Meter BN 2256/01 OLP-6 Optical Power Meter BN 2256/02 OLP-8 Optical Power Meter BN 2256/03 Calibration report BN 2256/90.02 Accessories Test cable K3xxx NiCd cells (AA size) BN 2229/90.02 External charger 220 V, European connector BN 2229/90.03... - Page 42 Notes: OLP-5, OLP-6, OLP-8...