Cisco MWR-1941-DC-2T1 Hardware Installation Guide - Page 77
Types of Serial Cables, Connecting the Card to the Network, EIA/TIA-232 Interface
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Appendix B Cable Specifications Serial Connection Signals and Pinouts Types of Serial Cables Six types of serial cables (also called serial adapter cables or serial transition cables) are available from Cisco Systems: • EIA/TIA-232 Interface • EIA/TIA-449 Interface • V.35 Interface • X.21 Serial Cable Assembly • EIA-530 Interface 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 (male) at the network end and DCE with a receptacle (female) 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. Connecting the Card to the Network Note The serial WAN interface card uses a universal high-density, 60-pin receptacle. Each universal port requires a serial port adapter cable that determines the port's electrical interface type and mode: DTE or DCE. Although all port adapter cables use a universal plug at the quad serial module end, the network end of each cable type uses the physical connectors commonly used for the interface. (For example, the network end of the EIA/TIA-232 port adapter cable is a DB-25 connector, the most widely used EIA/TIA-232 connector.) After you install the serial WAN interface card, use the appropriate serial cable to connect the interface card's DB-60 serial port to one of the following types of equipment: • An asynchronous modem, if connecting to an analog telephone line • A synchronous modem, data service unit/channel service unit (DSU/CSU), or other data circuit-terminating equipment (DCE), if connecting to a digital WAN line EIA/TIA-232 Interface This section contains the following topics: • EIA/TIA-232 Connections • EIA/TIA-232 Serial Cable Assembly 78-15827-06B0 Cisco MWR 1941-DC Mobile Wireless Edge Router Hardware Installation Guide B-11