28 CHAPTER 2: S MART INTERFACE CARDSStep 1: Choose a synchronous/asynchronous serial interface cable depending onthe type of the interface on the remote device.Step 2: Plug the DB-28 connector of the cable to the DB-28 port on the SIC-1SAE.Step 3: Connect the other end of the SAE cable to:■ Port of CSU/DSU if the WAN is a DDN line.■ Serial port on an analog modem if the WAN is a dial-up line.Step 4: Check the behavior of the LINK LED on the card panel. It is OFF when theline is faulty and signal is out of synchronization. Check the line for the cause.SIC-1EPRI/SIC-1E1-FIntroduction 1-port channelized E1/CE1/PRI compatible interface card (SIC-1EPRI) supports:■ Transmission/Receiving and handling of E1 data streams;■ CE1 (channelized E1) access;■ ISDN PRI function;■ Remote loopback and local loopback functions, facilitating fault test andlocation.It is possible to use the card for multiple purposes through differentconfigurations.Following are the differences between SIC-1EPRI and 1-port Fractional E1 interfacecard (SIC-1E1-F):■ FE1 mode of SIC-1E1-F can support only one channel bundle (the rate is n ×64kbps, n=1-31), while the 31 channels can be grouped into multiple arbitrarybundles by SIC-1EPRI;■ SIC-1E1-F does not support PRI mode.Interface Attributes The interface attributes of SIC-1EPRI/SIC-1E1-F are given in the following table:Table 5 Interface attributes of SIC-1EPRI/SIC-1E1-FAttribute DescriptionConnector type DB-15Number of connectors 1Interface standard G.703, G.704Interface rate 2.048 MbpsCable type 75-ohm non-balanced coaxial cable(DB-15 to BNC)120-ohm balanced twisted-pair cable(DB-15 to RJ-45)Coaxial connector, network interfaceconnector and 75-ohm to 120-ohmadapter
