Cisco CISCO1701-K9-RF Hardware Installation Guide - Page 64
Installing a Cisco Serial WAN Interface Card, Grounding, Cables
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Serial WAN Interface Cards Serial Interface Cards Installing a Cisco Serial WAN Interface Card Install the Cisco serial wan interface card according to the instructions in Installing Cisco Interface Cards in Cisco Access Routers. Grounding Ensure that the equipment you are working with is properly grounded according to the instruction in Installing Cisco Interface Cards in Cisco Access Routers. Cables After you install the serial WIC, use the appropriate serial cable to connect the WIC's serial port to one of the following types of equipment. (See Figure 36.): • An asynchronous modem, if connecting to an analog telephone line • A synchronous modem, DSU or CSU, or other DCE, if connecting to a digital WAN line The 1-port serial WIC has a DB-60 serial port, whereas the 2-port serial WIC and the 2-port A/S WIC have Cisco smart serial ports. Use the correct cable for your serial WIC. The serial cable attached to a smart serial port determines the port's electrical interface type and mode (DTE or DCE). Tip A cable providing surge protection (CAB-SS-SURGE) is also available from Cisco Systems. See the "For connection limitations, see the "1- and 2-Port Serial WICs" section on page 2, and the "2-Port Asynchronous/Synchronous Serial WIC" section on page 2." section on page 5 for instructions on connecting the surge protector cable. Types of Cables for 1- and 2-Port Serial WICs Six types of serial cables (also called serial adapter cables or serial transition cables) are available from Cisco Systems for 1- and 2-port serial WICs: • EIA/TIA-232 serial cable assembly • EIA/TIA-449 serial cable assembly • V.35 serial cable assembly • X.21 serial cable assembly • EIA/TIA-530 serial cable assembly • EIA/TIA-530A serial cable assembly All serial cables provide a universal plug at the interface card end. The network end of each cable provides the physical connectors most commonly used for the interface. For example, the network end of the EIA/TIA-232 serial cable is a DB-25 connector, the most widely used EIA/TIA-232 connector. All serial interface types except EIA-530 are available in DTE or DCE format: DTE with a plug connector at the network end and DCE with a receptacle at the network end. V.35 is available in either mode with either gender at the network end. EIA-530 is available in DTE only. OL-12843-01 4