MPBC 2RU Raman Co-Pump Unit
| Brand | MPS (Germany) |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Model | MPBC 2RU |
| Price | Upon Request |
Overview
The MPBC 2RU Raman Co-Pump Unit is a network-ready, rack-mounted optical subsystem engineered for distributed Raman amplification in long-haul and ultra-long-haul fiber optic transmission systems. Designed and manufactured by MPBC Inc. (Canada), this unit implements co-propagating Raman pumping—where pump light travels in the same direction as the signal—to enable low-noise, high-gain post-amplification across the C-band (1500–1568 nm) and extended Super-C-band (1524–1572 nm). Unlike discrete erbium-doped fiber amplifiers (EDFAs), Raman co-pumping leverages stimulated Raman scattering (SRS) in the transmission fiber itself, delivering superior noise figure performance, flexible gain shaping, and immunity to transient power surges. The 2RU chassis conforms to EIA-310-D 19-inch rack standards and integrates seamlessly into carrier-grade optical line systems requiring GR-3108 Class 1 and NEBS Level 3 compliance (with optional NEBS L3 kit).
Key Features
- Integrated Optical Supervisory Channel (OSC) transmitter at 1574 nm or 1576 nm, supporting up to 86–88 dB link budget for real-time fiber integrity monitoring
- Co-pumped C-band and Super-C-band operation with configurable output power: up to 3 W (2RU-N2-SRCP) or 2 W combined (2RU-MLD + 2RU-MLDS)
- Low relative intensity noise (RIN) of –122 dB/Hz, critical for coherent modulation formats and high-order QAM transmission
- High polarization extinction ratio (PER) control: <4% DoP for MLD/MLDS variants; <10% for SRCP—ensuring stable gain uniformity under varying PMD conditions
- Embedded web-based GUI with TLS 1.2 encryption, CLI, SNMP v2c/v3, and NETCONF/YANG API support for automated orchestration
- Onboard micro-SD card for configuration backup, firmware updates, and audit-log storage compliant with GLP-aligned operational traceability
- Automatic fiber break detection and safe shutdown/restart logic per ITU-T G.664 and Telcordia GR-1312-CORE requirements
Sample Compatibility & Compliance
The MPBC 2RU Raman Co-Pump Unit is compatible with standard single-mode fiber (G.652.D, G.655, G.656) and supports bidirectional DWDM channel loading up to 96 channels (50 GHz spacing). It meets IEC 60825-1 (laser safety Class 1M), EN 55032 (EMC emissions), and EN 55035 (immunity). For deployment in regulated telecom infrastructure, the unit supports full audit trail logging and role-based access control (RBAC), aligning with FCC Part 15 Subpart B and EU Directive 2014/53/EU (RED). Optional NEBS Level 3 certification (via GR-63-CORE and GR-1089-CORE) ensures operability in harsh environments—including temperature cycling (–5 °C to +55 °C), humidity (5–95% RH non-condensing), and seismic zone 4 vibration profiles.
Software & Data Management
Firmware version 3.2+ delivers RESTful API endpoints for integration with OSS/BSS platforms (e.g., Cisco Crosswork, Nokia NetAct, Ericsson ENM). Configuration persistence is enforced via signed JSON schema files stored on the internal micro-SD card, enabling deterministic reprovisioning after power loss. All user actions—including OSC threshold adjustments, pump current calibration, and alarm masking—are timestamped and cryptographically signed. Audit logs comply with ISO/IEC 27001 Annex A.12.4.3 and support export in CSV or Syslog format for SIEM ingestion. The embedded HTTP server enforces HTTP Strict Transport Security (HSTS) and disables insecure cipher suites (e.g., TLS_RSA_WITH_AES_128_CBC_SHA), satisfying NIST SP 800-52 Rev. 2 cryptographic policy requirements.
Applications
- Subsea cable systems: Enables unpowered, repeaterless spans exceeding 400 km (e.g., Tampnet AS North Sea deployment); reduces latency by eliminating EDFA staging points
- Terrestrial long-haul networks: Powers the Mackenzie Valley Fiber Link (1,154 km, Canada), where 2RU ROPA units maintain OSNR >22 dB over 120 km average span length
- OPGW networks: Validated in extreme climates—Siberian winter (–55 °C), Arabian desert (+60 °C ambient), and Amazonian tropical humidity—without derating
- DWDM metro-core extensions: Delivers 4 Tb/s aggregate capacity across 3,500 km Chilean coastal network (Arica–Puerto Montt), using hybrid Raman/EDFA gain flattening
FAQ
What is the maximum allowable insertion loss for C-band signal pass-through?
For 2RU-N2-SRCP: ≤3.2 dB; for 2RU-N2-MLD: ≤2.0 dB; for 2RU-N2-MLDS: ≤1.0 dB—measured per IEC 61280-2-9.
Does the unit support dual-stage Raman pumping?
Yes: When configured as 2RU-MLD + 2RU-MLDS, it enables first- and second-order co-pumping at 14xx nm wavelengths, achieving combined output up to 2 W.
Is OSC functionality dependent on Raman pump status?
No—the OSC remains active even with Raman pumps disabled, ensuring continuous fiber health monitoring during maintenance windows.
Can firmware be updated remotely without service interruption?
Yes: Dual-image firmware architecture allows atomic rollback; updates occur during scheduled maintenance windows with zero packet loss.
What documentation is provided for regulatory audits?
Full compliance dossier includes test reports for GR-3108, IEC 60825-1, EN 55032/35, and optional NEBS L3 certification package—available upon NDA execution.
