Specifications
2-9
Cisco 7100 Series VPN Router Installation and Configuration Guide
78-6341-03
Chapter 2 Preparing for Installation
Safety Guidelines
Temperature and Humidity Requirements
Table 2-1 lists the operating and nonoperating environmental site requirements. The ranges listed are
those within which Cisco 7100 series routers continue to operate; however, a measurement that is
approaching the minimum or maximum of a range indicates a potential problem. You can maintain
normal operation by anticipating and correcting environmental anomalies before they approach a
maximum operating range.
Power Connection Guidelines
Follow these precautions and recommendations when planning power connections to a Cisco 7100 series
router:
• Check the power at your site before installation and periodically after installation to ensure that you
are receiving clean power. Install a power conditioner if necessary.
• The AC power supply includes the following features:
–
Autoselects either 110V or 220V operation.
–
All units include a 6-foot (1.8-meter) electrical power cord. (A label near the power cord
indicates the correct voltage, frequency, current draw, and power dissipation for the unit.)
Warning
This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that
a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC, 10A international) is used on the
phase conductors (all current-carrying conductors).
• For Cisco 7140 series routers, we recommend connecting each power supply to a separate AC power
source for maximum redundancy.
Note Cisco 7140 series routers will operate with power connected to either of the two power supplies. The
second AC-input power supply simply enables power load-sharing and redundancy. There is no primary
or secondary power supply for Cisco 7140 series routers.
• Install proper grounding to avoid damage from lightning and power surges.
Table 2-1 Specifications for Operating and Nonoperating Environments
Specification Minimum Maximum
Temperature, ambient operating 32°F (0°C) 104°F (40°C)
Temperature, ambient nonoperating and
storage
–4°F (–20°C) 149°F (65°C)
Humidity, ambient (noncondensing)
operating
10% 90%
Humidity, ambient (noncondensing)
nonoperating and storage
5% 95%
Altitude, operating and nonoperating Sea level 10,000 ft.
(3050 m)
Vibration, operating 5–200 Hz, 0.5 g (1 octave/min.) –