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2-13
Cisco 10008 Router Hardware Installation Guide
OL-0659-13
Chapter 2 Preparing for Installation
Electrical Safety
Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should be
between 1 and 10 megohms.
Figure 2-2 ESD Chassis Connection
Electrical Safety
All system components are hot-swappable. They are designed to be removed and replaced while the
system is operating without presenting an electrical hazard or damage to the system.
Follow these basic guidelines when you are working with any electrical equipment:
• Before beginning any procedures requiring access to the chassis interior, locate the emergency
power-off switch for the room in which you are working.
• Disconnect all power and external cables before installing or removing a chassis.
• Do not work alone when potentially hazardous conditions exist.
• Never assume that power has been disconnected from a circuit; always check.
• Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
Never install equipment that appears damaged.
• Carefully examine your work area for possible hazards such as moist floors, ungrounded power
extension cables, and missing safety grounds.
In addition, use the guidelines that follow when working with any equipment that is disconnected from
a power source but is still connected to telephone wiring or other network cabling.
• Never install telephone wiring during a lightning storm.
• Never install telephone jacks in wet locations unless the jack is specifically designed for wet
locations.
• Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
1 ESD socket
PROCESSOR ONLY
POWER
FAULT
MISWIRE
C
I
S
C
O
1
0
0
0
0
PERFORMANCE ROUTING ENGINE
S
L
O
T
0
S
T
A
T
U
S
F
A
I
L
B
I
T
S
P/N
ESR-PRE3
PERFORMANCE ROUTING ENGINE
S
L
O
T
0
S
T
A
T
U
S
F
A
I
L
B
I
T
S
P/N
ESR-PRE3
CH OC-12-DSO SM-IR
6XCT3–DS0
5
6XCT3–DS0
5
F
A
IL
6XCT3–DS0
5
6XCT3–DS0
5
6XCT3–DS0
5
OC–12/STM–4 POS SM–IR
126144
1