Cisco ASR-1000-SIP10 Hardware Installation Manual page 70

Safety Guidelines
Do not work on the system or connect or disconnect cables during periods of lightning activity.
Warning
Statement 1001
Warning To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network
voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some
LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables. Statement 1021
Warning Hazardous network voltages are present in WAN ports regardless of whether power to the unit is OFF
or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables,
detach the end away from the unit first. Statement 1026
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide
4-6
Chapter 4 Preparing to Install a SIP or a Shared Port Adapter
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