Cisco 7206VXR Installation Guide - Page 84

Auxiliary Port Signals, Fast Ethernet Connection Equipment

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Connecting I/O Controller Cables Chapter 3 Installing the Cisco 7206 Table 3-1 Console Port Signals Pin Signal 1 GND 2 TxD 3 RxD 6 DSR 7 GND 8 DCD Direction Description Ground Transmit Data Receive Data Data Set Ready (always on) Ground Data Carrier Detect (always on) Auxiliary Port Signals Table 3-2 lists the signals used on the auxiliary port. The auxiliary port supports hardware flow control and modem control. Table 3-2 Auxiliary Port Signals Pin Signal Direction Description 2 TxD -> Transmit Data 3 RxD Request To Send (used for hardware flow control) 5 CTS

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3-16
Cisco 7206 Installation and Configuration Guide
OL-5102-02
Chapter 3
Installing the Cisco 7206
Connecting I/O Controller Cables
Auxiliary Port Signals
Table 3-2
lists the signals used on the auxiliary port. The auxiliary port supports hardware flow control
and modem control.
Fast Ethernet Connection Equipment
The I/O controller is available with or without a Fast Ethernet port. The I/O controller with a Fast
Ethernet port is equipped with either a single MII port or an MII port and an RJ-45 port (only one port
can be used at a time). Although still supported by Cisco Systems, the I/O controller equipped with the
single MII port was discontinued as an orderable product in May 1998. The following sections explain
Fast Ethernet MII and RJ-45 connection equipment.
Table 3-1
Console Port Signals
Pin
Signal
Direction
Description
1
GND
Ground
2
TxD
<—
Transmit Data
3
RxD
—>
Receive Data
6
DSR
—>
Data Set Ready (always on)
7
GND
Ground
8
DCD
—>
Data Carrier Detect (always
on)
Table 3-2
Auxiliary Port Signals
Pin
Signal
Direction
Description
2
TxD
—>
Transmit Data
3
RxD
<—
Receive Data
4
RTS
—>
Request To Send (used for hardware flow
control)
5
CTS
<—
Clear To Send (used for hardware flow control)
6
DSR
<—
Data Set Ready
7
Signal
Ground
Signal Ground
8
CD
<—
Carrier Detect (used for modem control)
20
DTR
—>
Data Terminal Ready (used for modem control
only)