Patent ID: 9735871
Date: 2017-08-15
CPC Classifications: G06F,H04B

Claim:
1. A communication device, comprising: a central processing unit (CPU); a peripheral component interconnect express (PCIe) chip having a transmitting end and a receiving end; and a detection and control circuit, wherein: the PCIe chip is configured to transmit an electrical signal on a first lane of the transmitting end to a first lane of an electrical-optical signal converter; the detection and control circuit is configured to detect a differential-mode voltage of the electrical signal, and if the differential-mode voltage of the electrical signal is lower than a first threshold, transmit a detection result that the differential-mode voltage is lower than the first threshold to the CPU in an interrupt mode; and the CPU is configured to disable a laser of the first lane of the electrical-optical signal converter from transmitting the optical signal.