Anritsu MP1656A Portable STM-16 Analyze w 01,21

The Anritsu MP1656A is a portable STM-16 analyzer operating at 2488.32 Mb/s, designed for transport layer testing and performance verification in telecommunications networks. It functions as a standalone regenerator section test instrument or integrates with the MP1550A/B and MP1570A analyzers to enable section, H-path (AU), and L-path (TU) analysis. The unit delivers G.826 error performance monitoring on repeater sections, J0 section trace evaluation with CRC-7 processing, and overhead byte monitoring.

Its compact form factor - 320 mm W × 88 mm H × 215 mm D, weighing 6.5 kg - suits field deployment and lab environments alike.

Technical Specifications

• Data Rate: STM-16 (2488.32 Mb/s)


• Optical Input: High-sensitivity receiver at −29 dBm; FC/SPC connector


• Optical Output: DFB-LD source; 1.31 µm and 1.55 µm options available


• Performance Monitoring: G.826 error metrics on B1 byte (repeater section) with simultaneous parameter confirmation


• Section Trace: J0 byte monitoring (64 or 16 byte modes) with CRC-7 evaluation


• Interfaces: GPIB, RS-232C, floppy disk drive, buzzer, real-time clock


• Display: Pop-up menus with zoom-in function for expanded result viewing


• Power Supply: 85–132 Vac or 170–250 Vac, 47.5–63 Hz, ≤300 VA


• Operating Temperature: 0 °C to 40 °C


• Storage Temperature: −20 °C to 60 °C


• Laser Safety: Complies with 21 CFR 1040.10 (USA)


• EMC & Safety: EN55011 (Group 1, Class A), EN50082-1, EN61010-1 (Installation Category II, Pollution Degree II)

Key Features

• Standalone regenerator section testing without external analyzers


• Add/Drop mode operation when paired with MP1550A/B or MP1570A


• Internal mode for independent measurements


• J0 section trace with dual byte-length formatting


• OH byte monitoring across SOH and any 1-byte positions


• Text-format data storage via built-in floppy disk drive


• User interface architecture matches MP1550A/B for operational familiarity

Typical Applications

• STM-16 regenerator section characterization


• PDH/SDH transport network verification


• Performance trending and compliance monitoring per G.826 standards


• Field troubleshooting of optical section degradation

Compatibility & Integration The MP1656A pairs with Anritsu's MP1550A/B and MP1570A PDH/SDH/SONET/ATM analyzers for hierarchical layer testing. Optional configurations include fixed 1.55 µm output (Option 01), switchable 1.31/1.55 µm output (Option 02), fixed 1.31 µm output (Option 03), and WDM receiver capability (Option 21).