Cisco Systems OL-5965-01 warranty Site Environment

General Site Requirements

Warning The device is designed for connection to TN and IT power systems. Statement 1007

The AC power supply autoselects either 110 V or 220 V operation. All routers include a 6-foot

(1.8-meter) electrical power cord. A label near the power inlet indicates the correct voltage, frequency (AC-powered systems only), and current draw for the router.

Table 1 lists power requirements for Cisco 3800 series routers.

Table 1	Power Requirements for Cisco 3800 Series Routers
Router		Power Supply	Input Power	Input Voltage
				Tolerance Limits
Cisco 3825		AC	100 to 240 VAC	85–264 VAC
without IP			3 A at 110 V; 2 A at 230 V
phone power			47 to 63 Hz
output
		DC	24 to 60 VDC, positive or negative, autoranging	18–72 VDC
			12 A at 24 V; 5 A at 60 V
Cisco 3825		AC	100 to 240 VAC	85–264 VAC
with IP phone			8 A at 110 V; 4 A at 230 V
power output			47 to 63 Hz
Cisco 3845		AC	100 to 240 VAC	85–264 VAC
without IP			4 A at 110 V; 2 A at 230 V
phone power			47 to 63 Hz
output
		DC	24 to 60 VDC, positive or negative, autoranging	18–72 VDC
			19 A at 24 V; 8 A at 60 V
Cisco 3845		AC	100 to 240 VAC	85–264 VAC
with IP phone			9 A at 110 V; 4 A at 230 V
power output			47 to 63 Hz

Site Environment

Cisco 3800 series routers should normally be installed in an equipment rack. (For instructions, see “Installing Cisco 3800 Series Routers in an Equipment Rack.”) The location of your router and the layout of your equipment rack or wiring room are extremely important considerations for proper operation. Equipment placed too close together, inadequate ventilation, and inaccessible panels can cause malfunctions and shutdowns, and can make maintenance difficult. Plan for access to both front and rear panels of the router.

Cisco 3800 series routers operate at a temperature of 32 to 104 degrees F (0 to 40 degrees C) and a humidity of 5 to 95 percent (noncondensing).

When planning your site layout and equipment locations, remember the precautions described in the next section, “Site Configuration,” to help avoid equipment failures and reduce the likelihood of environmentally caused shutdowns. If you are experiencing shutdowns or an unusually high number of errors with your existing equipment, these precautions may help you isolate the cause of the failures and prevent future problems.

Preinstallation Requirements and Planning for Cisco 3800 Series Routers

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