Types Of Serial Cables; Connecting The Card To The Network; Eia/Tia-232 Interface; Eia/Tia-232 Connections - Cisco MWR 1941-DC - 1941 Mobile Wireless Router Hardware Installation Manual

Appendix B Cable Specifications

Types of Serial Cables

Six types of serial cables (also called serial adapter cables or serial transition cables) are available from
Cisco Systems:
•
•
•
•
•
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

The serial WAN interface card uses a universal high-density, 60-pin receptacle. Each universal port
Note
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:
•
•

EIA/TIA-232 Interface

This section contains the following topics:
•
•
78-15827-06B0
EIA/TIA-232 Interface
EIA/TIA-449 Interface
V.35 Interface
X.21 Serial Cable Assembly
EIA-530 Interface
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 Connections

EIA/TIA-232 Serial Cable Assembly

Cisco MWR 1941-DC Mobile Wireless Edge Router Hardware Installation Guide
Serial Connection Signals and Pinouts
B-11