Serial Port Adapters - Cisco 7000 Hardware Installation And Maintenance

Physical Description
For complete descriptions of the LED states, refer to the appendix "Reading LED Indicators."
The router supports a maximum of five FSIPs for a maximum of 40 high-speed serial interfaces.
There are no restrictions on slot locations or sequence; you can install FSIPs in any available
interface processor slots. For descriptions of serial connection equipment, refer to the section "Serial
Connection Equipment" in the chapter "Preparing for Installation." For examples of network
connections, refer to the section "Serial Connections" in the chapter "Installing the Router."

Serial Port Adapters

The FSIP uses special port adapters and adapter cables to allow the high density (eight) of interface
ports on an FSIP, regardless of the size of the connectors typically used with each electrical interface
type. Figure 1-19 shows the port adapter that is used for all FSIP ports.
Figure 1-19 Serial Port Adapter
If your connection devices use metric hardware, replace the factory-installed 4-40
Note
thumbscrews with the metric (M3) thumbscrews that are included with every port adapter cable.
Port adapters are field-replaceable daughter cards mounted to the FSIP, and each provides two
high-density connectors for two FSIP ports. (See Figure 1-18.) The 60-pin D-shell receptacle
supports all interface types: EIA/TIA-232, V.35, EIA/TIA-449, X.21, and EIA-530. Each port
requires a serial adapter cable, which provides the interface between the special high-density FSIP
port and the standard connectors that are commonly used for each electrical interface type. The
adapter cable determines the electrical interface type and mode of the port to which it is connected.
The router (FSIP) end of all adapter cables is a 60-pin plug which connects to the 60-pin port on the
FSIP. The network end of the cable is an industry-standard connector for the type of electrical
interface that the cable supports: DB-25 for EIA/TIA-232 and EIA-530, DB-37 for EIA/TIA-449,
DB-15 for X.21, or a standard V.35 block connector. For most interface types, the adapter cable for
DTE mode uses a plug at the network end, and the cable for DCE mode uses a receptacle at the
network end. However, V.35 adapter cables are available with either a V.35 plug or a receptacle for
either mode, and EIA-530 is available only in DTE mode with a DB-25 plug.
Product Overview 1-49