Datasheet

3-9
Cisco Interface Card Hardware Installation Guide
OL-1919-18
Chapter 3 Connecting Serial Interface Cards to a Network
Serial High Speed WICs (HWICs)
Types of Cables for Serial HWICs
The 4-port serial HWICs have 26-pin 12-in-1 Cisco smart serial ports, whereas the 8- and 16-port serial
HWICs have 68-pin serial ports. Use the correct cable for your serial HWIC.
Cables for 4-Port Serial HWICs
The 4-port serial HWICs use Cisco smart serial cables. Six types of smart serial cables are available:
• EIA/TIA-232 serial cable assembly
• EIA/TIA-449 serial cable assembly
• V.35 serial cable assembly
• X.21 serial cable assembly
• EIA-530 serial cable assembly
• EIA-530A serial cable assembly
All of these serial cables provide a 26-pin 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.
Refer to the Cisco Modular Access Router Cable Specifications for network end connectors and pinouts
of these cables.
The EIA-530 and EIA-530A serial cables are available in DTE format only. All other cables are available
in either DTE or DCE format.
Cables for 8-Port and 16-Port Serial HWICs
The following cables are available from Cisco Systems for the 8-port and 16-port serial HWICs.
Cable for the 8-Port RS-232 Asynchronous/Synchronous HWIC
The 8-port RS-232 asynchronous/synchronous HWIC uses a quad cable, consisting of a 68-pin
connector on the interface card end and four DB25 connectors on the system end. (See Figure 3-11.) This
cable is available in either DCE or DTE format.