Cisco XR 12404 - Manual (Page 59)

2-13
Cisco XR 12404 Router Installation Guide
OL-13830-02
Chapter 2 Preparing for Installation
Installation Site Requirements
Power Connection Guidelines
The Cisco XR 12404 Router requires an AC PEM or a combination DC PDU and
DC PEM. Site requirements differ depending on the type of power source voltage.
We recommend you follow these precautions and recommendations when
planning power source connections to your router.
• Check the power at your site before installation and periodically after
installation to ensure that you are receiving clean power from the power
source.
• If necessary, install a power conditioner.
• Install proper grounding, or use the proper grounding receptacle located on
the side of the chassis, to avoid damage from lightning and power surges.
AC-Powered Routers
A Cisco XR 12404 Router configured with two AC PEMs, are shipped with a
three-wire electrical grounding-type plug that will only fit into a grounding-type
power outlet. This is a safety feature. The equipment grounding should be in
accordance with local and national electrical codes.
At sites where the Cisco XR 12404 Router operates with AC PEMs, observe the
following guidelines (
Figure 2-3 ):
• A power factor corrector (PFC) allows the PEM to accept AC power source
voltage from an AC power source operating between 100 to 120 VAC,
15–Amp service in North America; and a range of 185 to 264 VAC, 10–Amp
service, in an international environment.
• All AC PEM power cords measure 14 feet (4.3 meters).
• Provide a dedicated power source for each PEM installed in the router.
• Install an uninterruptable power source where possible.
Caution Use the North American plug L6-20 20A only on 240 volt systems.
todd.book Page 13 Monday, March 16, 2009 2:47 PM