The Finisar OADM-4 optibox module is a passive optical add/drop multiplexer designed for metro access applications that represents the state of the art in fiber optics design. The OADM-4 optibox module adds/drops four wavelength CWDM channels from network traffic and passes the other channels. Finisar''s unique CWDM design maps the channel into separate two-fiber paths, going in opposite directions into the network (East/West). Added/dropped channels are interfaced to any of Finisar''s CWDM transceivers on the equipment side. A grid of eight CWDM wavelengths is available from Finisar. The Finisar OADM-4 optibox module delivers dramatic cost savings to network equipment manufacturers, enabling them to develop metro access systems that are lower in cost, easier to provision and simpler to operate.