Cisco 7246 - uBR Router, Руководство по установке оборудования

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Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
OL-5421-03
Chapter 3 Installing the Cisco uBR7200 Series Router
Console and Auxiliary Port Connection Equipment
Auxiliary Port Signals
Table 3-3 lists the signals used on the auxiliary port. The auxiliary port supports hardware flow control
and modem control.
Fast Ethernet MII Connection Equipment
The Fast Ethernet port on the I/O controller has a single MII, 40-pin, D-shell-type connector that is
configurable for 100 megabits per second (Mbps). The MII connector supports IEEE 802.3u interfaces
compliant with the 100BASE-X and 100BASE-T standards. The single MII connection requires an
external transceiver that permits connection to multimode fiber for 100BASE-FX or 100BASE-T
physical media. (See
Figure 3-14 on page 3-19 .)
Note This port does not support 10-Mbps Ethernet connectivity, only 100-Mbps Fast Ethernet.
Table 3-2 Console Port Signal
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 3-3 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)