Console Port Signals; Auxiliary Port Signals; Ethernet Connector Signals - Cisco 7000 Hardware Installation And Maintenance

Console Port Signals

Console Port Signals
Thee console port on the RP (or RSP7000) is an EIA/TIA-232, DCE, DB-25 receptacle. Both DSR
and DCD are active when the system is running. The RTS signal tracks the state of the CTS input.
The console port does not support modem control or hardware flow control. Table A-1 lists the
signals used on this port. The console port requires a straight-through EIA/TIA-232 cable.
Table A-1
Pin
1
2
3
6
7
8

Auxiliary Port Signals

The auxiliary port on the RP (or RSP7000) is an EIA/TIA-232, DTE, DB-25 plug to which you
attach a CSU/DSU or other equipment in order to access the router from the network. Table A-2 lists
the signals used on this port.
The auxiliary port supports hardware flow control and modem control.
Table A-2
Pin
2
3
4
5
6
7
8
20

Ethernet Connector Signals

Most Ethernet transceivers require an attachment unit interface (AUI) or transceiver cable to connect
an Ethernet transceiver to the EIP Ethernet ports. Some unshielded twisted-pair (10BaseT)
transceivers are compact enough to connect directly to the EIP ports without impeding other
connections. For descriptions of Ethernet transceivers, connectors, and cables refer to the section
"Ethernet Connection Equipment" in the chapter "Preparing for Installation."
A-250 Cisco 7000 Hardware Installation and Maintenance
Console Port Signals
Signal Direction
GND –
TxD <—
RxD —>
DSR —>
GND –
DCD —>
Auxiliary Port Signals
Signal Direction
TxD —>
RxD <—
RTS —>
CTS <—
DSR <—
Signal Ground –
CD <—
DTR —>
Description
Ground
Transmit Data
Receive Data
Data Set Ready (always on)
Ground
Data Carrier Detect (always on)
Description
Transmit Data
Receive Data
Request To Send (used for hardware flow control)
Clear To Send (used for hardware flow control)
Data Set Ready
Signal Ground
Carrier Detect (used for modem control)
Data Terminal Ready (used for modem control only)