The present invention is directed to a system and method for employing telecommunications capacity information. The sliding module has a fixing frame fixed to the immovable body, a movable frame fixed to the movable body and slidably coupled to the fixing frame, and an elastic element having a fixing end fixed to the fixing frame and a movable end fixed to the movable frame. In particular, the optical fiber comprises a polarization coupling structure for inducing coupling between polarization modes of propagating light. And upon receiving an inquiry during the inquiry scan, the wireless device responds with a second device address, and if a second page is received during the page scan, establishes a connection. The apparatus further includes a reductant limiting module that is configured to determine whether at least one reductant limiting condition is met and to limit the amount of reductant added in response to the at least one reductant limiting condition if the at least one reductant limiting condition has been met. When the integrated circuit cannot detect the head of the packet data in reception operations, the integrated circuit cannot receive packet data should be received originally then assumes that the received packet data is a packet error.