Cisco C921-4P User Manual

macbook:user$ screen /dev/tty.usbmodem1a21 9600
To disconnect the OS X USB console from the Terminal window
Enter Ctrl-a followed by Ctrl-\
Connect to the Console Port with Linux
This procedure shows how to connect a Linux system USB port to the console using the built in Linux Terminal
utility.
Step 1 Open the Linux Terminal window.
Step 2 Connect the Linux USB port to the router.
Step 3 Enter the following commands to find the Linux USB port number
Example:
root@usb-suse# cd /dev
root@usb-suse /dev# ls -ltr *ACM*
crw-r--r-- 1 root root 188, 0 Jan 14 18:02 ttyACM0
root@usb-suse /dev#
Step 4 Connect to the USB port with the following command followed by the router USB port speed
Example:
root@usb-suse /dev# screen /dev/ttyACM0 9600
To disconnect the Linux USB console from the Terminal window
Enter Ctrl-a followed by : then quit
Connect WAN and LAN Interfaces
This section describes how to connect WAN and LAN interface cables. Before you connect the interface
cables, refer to the following warning statements:
For connections outside the building where the equipment is installed, the following ports must be connected
through an approved network termination unit with integral circuit protection: LAN. Statement 1044.
Warning
Avoid using or servicing any equipment that has outdoor connections during an electrical storm. There may
be a risk of electric shock from lightning. Statement 1088.
Warning
Hardware Installation Guide for the Cisco 900 Series Integrated Services Router
31
Install and Connect the Router
Connect to the Console Port with Linux

Cisco C921-4P Specifications

General

Switch type	Managed
Quality of Service (QoS) support	Yes
USB 2.0 ports quantity	1
Basic switching RJ-45 Ethernet ports type	-
Basic switching RJ-45 Ethernet ports quantity	4
10G support	No
Networking standards	IEEE 802.1D
Product color	Black
Electromagnetic compatibility	47CFR, AS/NZS CISPR22 2, CISPR22, EN55022, ICES003, EN61000-3-2, KCC, EN55024, KN24
Flash memory	2048 MB
Internal memory	1024 MB
MAC address table	- entries
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	0 - 50 °C
Operating relative humidity (H-H)	5 - 95 %
Security algorithms	802.1x RADIUS
Harmonized System (HS) code	85176990

Weight and Dimensions

Depth	241.3 mm
Width	228.6 mm
Height	43.2 mm
Weight	1200 g