| Wavelength range (nm) | FTBx-5245: 1250 to 1650; FTBx-5255: 1250 to 1650 |
| Wavelength uncertainty (nm) | FTBx-5245: ±0.05b, ±0.01b, c, d; FTBx-5255: ±0.025b, ±0.010b, c, d |
| Reference | FTBx-5245: Internale; FTBx-5255: Internale |
| Resolution bandwidth (RBW) (nm)f | FTBx-5245: 0.065d, g; FTBx-5255: 0.035b, d, <0.02 (high resolution mode)b, d, h |
| Wavelength linearity (nm) | FTBx-5245: ±0.01d, i; FTBx-5255: ±0.01d, i |
| Wavelength repeatability 2σ (nm) | FTBx-5245: ±0.003j; FTBx-5255: ±0.003j |
| Analysis mode | FTBx-5245 and FTBx-5255: WDM, EDFA, drift, spectral transmittance, DFB, FP |
| Optical rejection ratio (dB)m at 0.2 nm (25 GHz) at 0.4 nm (50 GHz) | FTBx-5245: 35 (40 typical) at 0.2 nm; 45 (50 typical) at 0.4 nm FTBx-5255 / HPW option: 45 (50 typical) at 0.2 nm; 50 (55 typical) at 0.4 nm |
| Channel spacing | FTBx-5245: 25 to 200 GHz, CWDM; FTBx-5255: 12.5 to 200 GHz, CWDM |
| PDL (dB)m | FTBx-5245: ±0.08d; FTBx-5255: ±0.06d; HPW option: ±0.1d |
| ORL (dB) | FTBx-5245: ≥40; FTBx-5255: ≥40 |
| Measurement time (s) (includes scanning, analysis and display) | FTBx-5245 and FTBx-5255: <1.0d, n |
| Dynamic range (dBm) (per channel)b | FTBx-5245: –80k to 18; FTBx-5255: –80k to 18; HPW option: –75k to 23 |
| Maximum total safe power (dBm) | FTBx-5245: 23; FTBx-5255: 23; HPW option: 29 |
| Absolute power uncertainty (dB) | FTBx-5245: ±0.5l; FTBx-5255: ±0.5l; HPW option: ±0.5l |
| Power repeatability 2σ (dB) | FTBx-5245: ±0.02j; FTBx-5255: ±0.02j; HPW option: ±0.02j |
| In-band OSNR measurementd | Available on FTBx-5245-P only and FTBx-5255 |
| OSNR dynamic range (dB) | FTBx-5245-P only: >35o; FTBx-5255: >35o |
| OSNR measurement uncertainty (dB) | FTBx-5245-P only: ±0.5p; FTBx-5255: ±0.5p |
| OSNR repeatability (dB) | FTBx-5245-P only: ±0.2q; FTBx-5255: ±0.2q |
| Data signals (in-band OSNR) | FTBx-5245-P only: Up to 100 Gbit/sr; FTBx-5255: Up to 100 Gbit/sr |
| Pol-Mux OSNR measurement | Commissioning assistant |
| Modulation formats (Pol-Mux OSNR) | Any, including all coherent/Pol-Mux formats like DP-QPSK, DP-BPSK, DP-8-QAM, DP-16-QAM, DP-64-QAM |
| Data signals (Pol-Mux OSNR) | Up to 400 Gbit/s |
| Measurement time (Pol-Mux OSNR) | 1 min and 40 s (100 scans) for trace with all channels ona, b; <5 s for traces with a single channel off |
| In-service Pol-Mux OSNRa, c | Available on FTBx-5255 |
| OSNR dynamic range (dB) (in-service Pol-Mux) | FTBx-5255: 30 |
| OSNR measurement uncertainty (dB) (in-service Pol-Mux) | FTBx-5255: ±0.5d, e, f |
| Repeatability (dB) (in-service Pol-Mux) | FTBx-5255: ±0.3d, e |
| a. All specifications are for a temperature of 23 °C ± 2 °C with an FC connector, unless otherwise specified, after warm-up. Measurements taken using FTB-4 Pro. b. From 1520 to 1610 nm. c. After user calibration in the same test session, within 10 nm from user calibration wavelength. d. Typical. e. Integrated and wavelength independent. f. Full-width half-maximum. g. From 1300 to 1590 nm. h. Optimized for higher order modulation format signals. i. From 1530 to 1570 nm. j. At 1550 nm, in drift mode. Single scan every 2 seconds, over 2 minutes. With DFB laser. k. With averaging. l. At 1550 nm, –10 dBm input. m. At 1550 nm, with narrow monochromatic light source. n. 45 nm span, full resolution, 20 peak. On FTB-2 Pro. o. For an optical noise level of > –55 dBm, > –49 dBm for HPW models. p. With PMD ≤15 ps and no crosstalk, uncertainty specification is valid for OSNR ≤ 25 dB. With PMD ≤ 15 ps and crosstalk, uncertainty specification is valid for OSNR ≤ 20 dB. q. Valid for OSNR ≤ 25 dB. r. Except for polarization-multiplexed and fast polarization-scrambled signals. a. Typical. b. 1525 nm to 1570 scan. On the FTB-4 Pro platform. c. For an optical noise level of > –55 dBm in 0.1 nm RBW. d. For signal rates < 35 Gbaud/s on grid spacing ≥ 50 GHz (with or without spectral shaping). e. Up to 25 dB of OSNR. f. Up to ±1.5 dB when there is the presence of combined typical network variations in nonlinear effects, relative signal or filter wavelength drifts. | |
| Size (H x W x D) | 51 mm x 159 mm x 185 mm (2 in x 6 1/4 in x 7 5/16 in) |
| Weight | 1.2 kg (2.6 lb) |
| Temperature, operating | 0 °C to 40 °C (32 °F to 104 °F) |
| Temperature, storage | –40 °C to 50 °C (–40 °F to 122 °F) |
| Relative humidity | 0 % to 95 % noncondensing |
| Connectors | EI (EXFO UPC universal interface); EA (EXFO APC universal interface) |
| a. Typical. | |