Installation guide

Making External Connections to Cisco 4000 Series Routers 4-51

Network Connection Considerations

Console Port Connections

Each router includes an asynchronous router console port (female DB-25 connector) wired

as a data communications equipment (DCE) device. The default parameters for this port are

as follows:

• 9600 baud

• 8 data bits

• No parity generated or checked

• 2 stop bits

Table B-1 in the appendix “Cabling Speciﬁcations for Cisco 4000 Series Routers,” lists the

pinouts for the Cisco 4000-M console port and Table B-2 lists the pinouts for the

Cisco 4500-M and Cisco 4700-M console port.

Auxiliary Port Connections

A male DB-25 connector auxiliary port (labeled AUX on the chassis rear) is included on

all router units. The auxiliary port is a shared-memory data terminal equipment (DTE) port

to which you can attach an EIA/TIA-232 connector from a channel service unit/data service

unit (CSU/DSU), a modem, or protocol analyzer for network access. Table B-1 in the

appendix “Cabling Speciﬁcations for Cisco 4000 Series Routers,” lists the pinouts for the

Cisco 4000-M auxiliary port and Table B-3 lists the pinouts for the Cisco 4500-M and

Cisco 4700-M asynchronous serial auxiliary port.

Network Connection Considerations

This section describes the considerations for each type of network connection available for

Cisco 4000 series routers.

For network processor modules released after publication of this document, see the

conﬁguration notes that ship with the chassis and the spare modules, for example

• Installing Fast Ethernet Network Processor Modules in the Cisco 4000 Series

• Installing 2T16S Network Processor Modules in the Cisco 4000 Series