Cisco C921-4P User Manual

CHAPTER 2
Prepare for Router Installation
Before you install the Cisco 900 Series Integrated Services Routers, you must prepare your site for the
installation. This chapter provides pre-installation information, such as recommendations and requirements
that should be considered before installing your router.
See the following sections to prepare for installation:
• Safety Recommendations, on page 9
• General Site Requirements, on page 10
• Rack Requirements, on page 11
• Router Environmental Requirements, on page 12
• Power Guidelines and Requirements, on page 12
• Network Cabling Specifications, on page 13
• Required Tools and Equipment for Installation , on page 14
Safety Recommendations
IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work
on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard
practices for preventing accidents. Use the statement number provided at the end of each warning to locate
its translation in the translated safety warnings that accompanied this device. Statement 1071
SAVE THESE INSTRUCTIONS
Warning
Safety With Electricity
No user-serviceable parts inside. Do not open. Statement 1073
Warning
Hardware Installation Guide for the Cisco 900 Series Integrated Services Router
9

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