SIC-8AS 63Connecting the InterfaceCablec CAUTION: When connecting the optical fiber, observe the following■ Do not over-bend the optical fiber. Its curvature radius must be no less than 10cm (3.9 in).■ Ensure that the Tx and Rx ends are correctly connected.■ Ensure that the fiber ends are clean.w WARNING: Laser danger: Invisible laser radiation may be emitted from thefiber-optic ports which are connected to lasers. To protect your eyes againstradiation harm, never stare into an open fiber-optic port.Step 1: Insert the SFP optical module into its corresponding slot.Step 2: Locate the Rx and Tx ports of the SIC-1FEF interface. Connect them toanother device with two optical fibers: Rx to Tx and Tx to Rx.Step 3: Power on the router and check the behavior of the LINK LED on theSIC-1FEF panel. ON means an Rx link is present and OFF means the opposite. Inthe latter case, check the line status.SIC-8ASIntroduction SIC-8AS, the 8-port asynchronous serial interface card, is mainly used to transceiveand process the asynchronous data streams.SIC-8AS has these features:■ Each asynchronous serial port provides a rate up to 115.2 Kbps.■ Supports the terminal access service and asynchronous dedicated line.■ Serves as the small-/medium-sized ISP dial-up access server when anasynchronous serial port is used for dial-up.Interface Attributes The following table describes the interface attributes of SIC-8AS.Table 35 Interface attributes of SIC-8ASAttribute DescriptionConnector DB60Number of connectors 1Interface cable Customized cable with 8-port RJ-45connectorInterface standard RS232Minimum baud rate 300 bpsMaximum baud rate 115.2 Kbps
