In the transponder module, the client signal is converted to an ITU-compliant wavelength, which is cross-connected over the optical backplane to the mux/demux modules. You can populate the line card motherboard subcard slots with as few or as many transponder modules as required (up to 32) to support the desired number of client signals, or data channels.The 10-GE transponder module is double the size of the 2.5-Gbps transponder modules and requires a special 10-Gbps line card motherboard. You can install up to two 10-GE transponder modules in a 10-Gbps line card motherboard. Each transponder supports one client side and one trunk side interface. The client side is a short-reach 1310 nm interface and the trunk side interface is an ITU Grid compliant 15xx nm long-reach interface. The transmitter supports a 1260 nm to 1355 nm wavelength range.