The SmartClass OLA-54/-55/-55M Optical Level Attenuators are future-proof, improved variable attenuators for fiber system testing as well as installation, maintenance, and production of multimode fibers (OLA-54) and singlemode fibers(OLA-55/-55M). The OLA-55M Motorized Optical Level Attenuator provides in addition an implemented power meter for stabilized level controller applications.
The SmartClass OLA-54 and OLA-55 Optical Level Attenuators can be part of a SmartClass Optical Test Kits that contain all of the tools, including instruments and accessories, necessary to perform professional-grade power or loss tests in the field.
| Key Features |
| Robust, shock-proof, and splash-proof design for field operation |
| USB port for remote operation |
| Absolute and relative attenuation setting |
| Level controller function for direct setting of attenuator output level (OLA-55M) |
| 40 Gbps ready due to low Differential Group Delay |
| Traceable measurements to NIST/PTB standards for confidence in accuracy |
| 600 adjustable wavelengths for the OLA-54 and 400 adjustable wavelengths for the OLA-55/55M |
| Long battery operation time of >1000 h (OLA-54/-55) |
| Benefits |
| Reduce testing time with a quick start operation, requiring no warm-up time |
| Provide excellent overall accuracy in use with hundreds of calibrated wavelength |
| Reduce the need for couplers and additional instruments in test setups. |
| Minimize insertion loss due to a special optical design |
| Specifications |
|
| Features | Parameters |
| Display | Illuminated graphical display, resolution of 128 × 64 dots
Results displayed in dB
Backlight function switchable via a separate key
|
| Connector | Optical connector interchangeable adapter from BN 2150/00.xx range is suitable for measurements on flat or angled physical contact systems |
| Power Supply | Four dry batteries Mignon/AA, 1.5 V or NiMH rechargeable cells Mignon/AA, 1.2 V
Operating time from dry batteries; >300 h
Batteries/NiCd/NiMH power saving:
The instrument switches off automatically after ~20 min (function can be disabled)
AC line operation via separate AC adapter
Integrated fast battery charging function (2 hours)
External 12 V DC operating via an AC adapter or a 12 V car battery adapter
|
| Electromagnetic Compatibility | Corresponds to IEC 61326 (CE conformance) |
| Calibration | Suggested calibration interval; 3 years |
| Ambient Temperature | Nominal range of use: −10°C to +55°C
Storage and transport: −40°C to +70°C
|
| Dimensions and Weight | W × H × D approximately: 95 × 60 × 195 mm
(3.74 × 2.36 × 7.68 in)
|
| Weight Approximately | 500 g (1.1 lb) |
| Specifications |
|
|
SmartClass OLA-54/-55/-55M
Optical Level Attenuators
|
|
|
| Model | SmartClass OLA-54
(BN 2280/41 Multimode)
| SmartClass OLA-55
(BN 2280/01 Single-mode)
(BN 2280/21 Single-mode APC)
|
| Table Adjustable Wavelength Range | 750 to 1350 nm in 1 nm Increments | 1260 to 1650 nm in 1 nm Increments |
| Fiber Type | 50/125 µm | 9/125 µm |
| Calibrated Wavelengths | 850 nm, 1300 nm | 1310 nm, 1550 nm, 1625 nm |
| Display Range(1) | <2.5 to 55 dB | 2.0 to 60 dB |
| Minimum Insertion Loss(1) | <2.5 dB | <2.0 dB |
| Linearity | ± 0.2 | ± 0.2 |
| Repeatability of Attenuation Setting(2) | ± 0.1 dB | ± 0.1 dB |
| Total Attenuation Accuracy(1) | typ. ± 0.8 dB | ± 0.8 dB |
| Setting Type | Continuous over the entire range | Continuous over the entire range |
| Function | Bi-directional | Bi-directional |
| Displayed Value(1) | Absolute or relative attenuation value | Absolute or relative attenuation value |
| Max. Permitted Level | +20 dBm | +23 dBm |
Notes:
(1) Including connectors (to IEC874-1, method 6), depending on quality of the connectors applied to the OLA
(2) Excluding remating
| Specifications |
|
| Ordering Information |
|
| Reference/Order Number | Instrument |
| BN 2280/01 | SmartClass OLA-55 Single-mode, variable attenuator, PC |
| BN 2280/02 | SmartClass OLA-55M Single-mode, variable attenuator incl. level control mode, PC |
| BN 2280/21 | SmartClass OLA-55 Single-mode, variable attenuator, APC |
| BN 2280/22 | SmartClass OLA-55M Single-mode, variable attenuator incl. level control mode, APC |
| BN 2280/41 | SmartClass OLA-54 Multimode, variable attenuator, 50/125 μm |
