cause malfunctions and shutdowns, and can make maintenance difficult. Plan for access to both front and rear
panels of the router.
When planning your site layout and equipment locations, refer to the General Site Requirements , section. If
you are currently experiencing shutdowns or an unusually high number of errors with your existing equipment,
these precautions and recommendations may help you isolate the cause of failure and prevent future problems.
•
Ensure that the room where your router operates has adequate air circulation. Electrical equipment
generates heat. Without adequate air circulation, ambient air temperature may not cool equipment to
acceptable operating temperatures.
•
Always follow ESD-prevention procedures described in the Preventing Electrostatic Discharge Damage
to avoid damage to equipment. Damage from static discharge can cause immediate or intermittent
equipment failure.
•
Baffles can help to isolate exhaust air from intake air, which also helps to draw cooling air through the
chassis. The best placement of the baffles depends on the airflow patterns in the rack, which can be
found by experimenting with different configurations.
•
When equipment installed in a rack (particularly in an enclosed rack) fails, try operating the equipment
by itself, if possible. Power off other equipment in the rack (and in adjacent racks) to allow the router
under test a maximum of cooling air and clean power.
Power Guidelines and Requirements
Check the power at your site to ensure that you are receiving
“
clean
”
power (free of spikes and noise). Install
a power conditioner if necessary.
Power Guidelines and Requirements lists power requirements for the Cisco 1100 Series ISRs.
Table 5: Power Requirements for Cisco 1100 Series ISRs
Output Rated
Input Rated
Power Source
12 VDC, 5.5A
100-240V, 2A
66W AC Power Adapter
(PWR-66W-AC-V2)
12VDC, 3.5A; -53.5Vdc, 1.55A
100-240 VAC, 2A, 50-60 Hz
125W AC Power Adapter
(PWR-125W-AC)
12V, 4.6A, -53.5V 1.12A
100-240VAC, 2A, 50-60 Hz
115W AC Power Adapter
(PWR-115W-AC)
Network Cabling Specifications
The following sections describe the cables needed to install your Cisco 1100 Series ISR in the following
sections:
Hardware Installation Guide for the Cisco 1100 Series Integrated Services Router
18
Preparing for Router Installation
Power Guidelines and Requirements