1-44
Cisco 2900 Series and 3900 Series Hardware Installation Guide
OL-18712-02
Chapter 1 Overview of the Routers
Specifications
Weight (fully configured)
60 lb (27.21 kg)
Power
AC input power (Cisco 3945)
•
Input voltage
100 to 240 VAC, autoranging
•
Frequency
47 to 63 Hz
•
Input current
0.4 to 3.5 A (configuration dependent)
•
Input current with AC-POE
0.4 to 7.0 A (configuration dependent)
•
Surge current
30 A maximum at 115 VAC 60 Hz, 60 A maximum at 230 VAC 50
Hz
Power consumption (Cisco 3945) 85 to 400 W, 600 to 1370 BTU/hr (configuration dependent)
•
With AC-POE
85 to 800 W, 600 to 2740 BTU/hr (configuration dependent)
Ports
Console port
One RJ-45 connector and one mini USB Type B, USB 2.0
compliant
Auxiliary port
RJ-45 connector
USB ports
Two USB Type A, USB 2.0 compliant, 2.5 W (500 mA) max.
1
10/100/1000 Gigabit Ethernet
Three or Four RJ-45 connectors (GE0/0, GE0/1, GE0/2, GE0/3),
auto-MDIX
2
.
Note
Cisco 3925E and Cisco 3945E routers have four RJ-45
connectors that support Gigabit Ethernet networks.
SFP
Two RJ-45 connectors support SFP modules. When an SFP module
is installed the adjacent RJ-45 GE connector is disabled. See
Table 5-4
for a list of supported modules.
Environmental
Operating humidity
5 to 85% RH
Operating humidity (short-term
per NEBS)
5% to 90%, but not to exceed 0.024 kg water/kg of dry air
Operating temperature up to 5906
ft (1800 m) elevation
32 to 104
°
F (0 to 40
°
C)
Operating temperature up to 9843
ft (3000 m) elevation
32 to 104
°
F (0 to 40
°
C)
Operating temperature up to
13,123 ft (4000 m) elevation
32 to 86
°
F (0 - 30
°
C)
Temperature - Short-term per
NEBS/1800m max altitude
23 to 122°F (-5°C to 50°C)
Operating altitude maximum
13,123 ft (4000 m)
Transportation and Storage
Nonoperating temperature
-40 to 158
°
F (-40 to 70
°
C)
Nonoperating humidity
5 to 95% RH
Table 1-18
Cisco 3900 Series Router Specifications (continued)
Description
Specification
