22Interface LEDsFigure 23 SIC-1ADSL-I panelTable 31 LED descriptionLED DescriptionLINK • Off: No link is present;• On: A link is present.ACT • Off: No data is being transmitted or received.• Flashing: Data is being received or/and transmitted.Interface cables and the connection methodsFor more information about ADSL interface cables and the connection methods, see"ADSL/BS/FXS/FXO/AM/FCM interface."ISDN BRI interface module• SIC-1BS• SIC-2BS• SIC-1BU• SIC-2BUSIC-1BS/SIC-2BS & SIC-1BU/SIC-2BUIntroductionThe 1/2-port ISDN BRI S/T interface module (SIC-1BS/SIC-2BS) is mainly used to transceive andprocess of ISDN BRI S/T traffic flows. The 1/2-port ISDN BRI U interface module (SIC-1BU/SIC-2BU)is mainly used to transceive and process ISDN BRI U traffic flows.Both SIC-1BS/SIC-2BS and SIC-1BU/SIC-2BU have two operating modes: dial-up and leased line.Interface specificationsTable 32 Interface specificationsItem DescriptionConnector • SIC-1BS/SIC-2BS: RJ-45• SIC-1BU/SIC-2BU: RJ-45 or RJ-11Number of connectors • 1 (SIC-1BS/SIC-1BU)• 2 (SIC-2BS/SIC-2BU)
