OTS 4000 System
The Opnext OTS-4000 series optical terminal subsystem is a NEBS-3 compliant shelf-level product that occupies one third of a standard seven-foot equipment rack and supports eight hot-swappable line cards, each with 40 Gbps total capacity. The OTS-4000 chassis supports redundant DC power feeds and provides full redundancy of all common equipment.
There are two 40G transmission modulation schemes used by OTS-4000 series line cards, Phase Shaped Binary Transmission (PSBT) and Differential Phase-Shift Keying (DPSK), both can operate on 50 GHz or 100 GHz ITU grid channel spacing. Opnext's 40 Gbps signal can be retrofitted into existing 10 Gbps DWDM optical channels, enabling Multi-Haul (simultaneous 10 Gbps and 40 Gbps on the same fiber) without the need for special 40 Gbps sub-bands. This compatibility with existing fiber types and 10 Gbps transport line systems effectively quadruples the capacity remaining on the original 10 Gbps DWDM span, and significantly delays fiber exhaust and the expenditure involved with lighting incremental fiber. OTS-4000 is scalable in single 40 Gbps channel increments, and provides a carrier with an immediate reduction in transport costs. Opnext's 40 Gbps transponder technology supports long-haul transmission using EDFA-only or ultra long-haul using Raman-assisted amplification.
To facilitate flexible integration into existing NMS environments the OTS-4000 employs a Java™ component model as its common management interface and supports a full range of FCAPS features. Standard interfaces include Web, XML, and SNMP.
The OTS-4000 terminal subsystem consists of the following components:
• OTS-4000 |
Shelf and fan assembly |
• OTS-4700 |
Shelf controller, with embedded Web, XML, SNMP capabilities |
• OTS-4011-PSBT |
Multiplexing transponder, supporting asynchronous multiplexing of four (4) OC-192/STM-64 and/or 10GE LAN/WAN PHY client signals into one (1) 40 Gbps line signal using PSBT modulation |
• OTS-4040-PSBT |
40 Gbps PSBT transponder supporting a serial 40 Gbps client interface (OC-768 / STM-256) |
• OTS-4400-PSBT |
Unidirectional 40 Gbps PSBT regenerator |
• OTS-4011-DPSK |
Multiplexing transponder, supporting asynchronous multiplexing of four (4) OC-192/STM-64, OTU-2 and/or 10GE LAN/WAN PHY client signals into one (1) 40 Gbps line signal using DPSK modulation |
• OTS-4040-DPSK |
40 Gbps DPSK transponder supporting a serial 40 Gbps client interface (OC-768 / STM-256 / OTU3) |
• OTS-4400-DPSK |
Unidirectional 40 Gbps DPSK regenerator |
• OTS-4520 |
Tunable Dispersion Compensator |
• OTS-4540 |
Polarization Mode Dispersion Compensator |
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- Quadruples the remaining capacity of existing 10 Gbps DWDM systems
- Plug and Play retrofit into existing DWDM 10 Gbps systems
- Supports OC-768c interfaces from next generation IP routers
- Fully redundant shelf controller, DC Power and cooling
- Fully front access
Industry standard software management tools for setup, management, and monitoring
- Compact, low-power, rack mount unit
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