Features High integration A CWU chassis (height: 1U) can be used to implement transmission of 4+1 wavelengths by building an optical terminal multiplexer (OTM) node. “+1” refers to the 1310 nm optical supervisory channel (OSC). A CWU chassis (height: 1U) can implement bidirectional transmission of 3 wavelengths by building an optical add/drop multiplexer (OADM) node. Flexible networking mode Multiple networking modes, chain networking, ring networking and tangent networking, etc. Modular architecture, it supports flexible adding/dropping from 1 to 18 wavelengths and smooth In-service upgrading. Optional OSC/ESC ZXMP M600 provides 4-degree OSC. It also provides ESC electrical supervision function. Diversity access service type ZXMP M600 can access any-rate-service (10Mb/s~2.7Gbit/s), * STM-0, STM-1, STM-4, STM-16. * E3, T3/DS3, E4, FE, GE, FC, 2G FC, ESCON, DVB-ASI. * 2 x GE > STM-16, 4 x GE/FICON/ESCON/DVB-ASI > STM-16 L2 switching ZXMP M600 supports L2 switching function, SFE board can Multiplex 2 channels of GE signals and 8 channels of FE, which can save wavelengths tremendously. Reliable protection ZXMP M600 supports optical multiplex section (OMS) 1+1 protection, optical channel (OCH) 1+1 protection, and 1+1 protection inside board. Convenient maintenance Support universal slots and hot swapping of boards in CWU and CWE chassis except for the PCW and NCP board. SFP optical module is Replaceable. Fan is front installation and hot plug in the chassis. Distinctive network management system with powerful functions ZXMP M600 uses NetNumenTM U31 for network management. It’s a unified management system for SDH, PTN, WDM/OTN etc., and covers core layer, metro edge layer, access layer, helping operators to reduce the cost of investment and operation. NetNumenTM U31 has multiple modes for network O&M, with powerful management capability of network element layer and networks layer, which promotes the network reliability and optimizes the network serving. Flexible chassis design CWU chassis has the height of 1U (44 mm) and 6 slots. It supports desktop installation or IEC/ETS standard cabinet installation in the front or back. Multiple power supply modes The CWU chassis supports power supply of -48V/-60V DC, or 220V (50 Hz)/110V (60 Hz) AC. An external adapter is needed for AC input. Two 1+1 hot backup power supply modules guarantee the system reliability.