Cisco C1121-4P User Manual

Figure 60: Attaching the Antennas
Step 1 Use your thumb and index finger to insert and tighten antenna 1 and antenna 3 in the middle antenna attachment slots as
indicated in the figure.
While installing the antennas, first install antenna 1 and antenna 3 (this instruction is for the two antenna
attachments present in the middle) and secure it completely. If you install antenna 2 and antenna 0 first (this
refers to the first and the last antenna attachments), there will be less space to insert your thumb and index
finger and therefore you may not be able to secure antenna 1 and 3.
Note
Step 2 Insert antenna 2 and antenna 0 in the first and last antenna attachment slots.
Step 3 After installing the antennas, adjust the antenna orientation by spacing out each of them equally until they are spread out.
This is important as it helps in getting higher RF performance.
Hardware Installation Guide for the Cisco 1000 Series Integrated Services Router
69
Install and Upgrade Internal Modules and Field Replaceable Units
Configuring a Pluggable Interface Module

Cisco C1121-4P Specifications

General

LAN Ports	4
Integrated Wireless	No
Form Factor	Desktop
Product Type	Router
Connectivity Technology	Wired
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Ports Qty	4
Power Over Ethernet (PoE)	Yes
Routing Protocol	OSPF, BGP, EIGRP
Remote Management Protocol	SNMP
Encryption Algorithm	AES, 3DES, DES
Features	Firewall, VPN support
Compliant Standards	IEEE 802.3, IEEE 802.3u
Type	Router
PoE Standards	IEEE 802.3af
Power Supply	External AC adapter
Operating Temperature	32°F to 104°F (0°C to 40°C)
Storage Temperature	-4°F to 149°F (-20°C to 65°C)
Humidity	10 - 95% (non-condensing)
Network/Transport Protocol	DHCP