nd Grounding
C H A P T E R
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Power and Grounding
This chapter describes power and grounding requirements and instructions for connecting your
Cisco MGC hardware to the network. This chapter contains the following sections: Warnings, page 5-1 Connecting the Sun Netra t 1400 to Power and Grounding Sources, page 5-2 Connecting the Sun Netra t 1405 to Power and Grounding Sources, page 5-2 Connecting the Sun Netra t 1120 to Power and Grounding Sources, page 5-2 Connecting the Sun Netra t 1125 to Power and Grounding Sources, page 5-3 Connecting the Sun Enterprise 450 to Power and Grounding Sources, page 5-3 Connecting the Sun Netra t 100 and the Sun Netra t 105 to Power and Grounding Sources, page 5-3 Connecting the Cisco SLT to Power and Grounding Sources, page 5-3 Connecting the Cisco Catalyst 5500 to Power and Grounding Sources, page 5-14 Connecting Ancillary Equipment, page 5-22 Connecting Optional Equipment, page 5-23 Grounding Your Equipment, page 5-23
Warnings
Observe the following warnings before connecting and powering the Cisco MGC hardware:
Warning
Only trained and qualified personnel should be allowed to install or replace this
equipment.
Warning
Do not touch the power supply when the power cord is connected. For systems with a
power switch, line voltages are present within the power supply even when the power
switch is off and the power cord is connected. For systems without a power switch, line
voltages are present within the power supply when the power cord is connected. 5-2
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Connecting the Sun Netra t 1400 to Power and Grounding Sources
Warning
A voltage mismatch can cause equipment damage and may pose a fire hazard. If the
voltage indicated on the label is different from the power outlet voltage,
do not connect
the chassis to that receptacle.
Warning
Before working on equipment that is connected to power lines, remove jewelry
(including rings, necklaces, and watches). Metal objects heat up when connected to
power and ground and can cause serious burns or they can become welded to the
terminals.
Connecting the Sun Netra t 1400 to Power and Grounding
Sources
The Sun Netra t 1400 is DC-powered. Refer to the Sun Netra t 1400/1405 Installation and Users Guide
that shipped with the product for DC source site requirements, overcurrent protection, grounding
instructions, and power cord installation instructions. The Sun system must be connected to the power
source and grounded as specified in Suns installation instructions.
Connecting the Sun Netra t 1405 to Power and Grounding
Sources
The Sun Netra t 1405 is AC-powered. Refer to the Sun Netra t 1400/1405 Installation and Users Guide
that shipped with the product for AC source site requirements, overcurrent protection, grounding
instructions, and power cord installation instructions. The Sun system must be connected to the power
source and grounded as specified in Suns installation instructions.
Connecting the Sun Netra t 1120 to Power and Grounding
Sources
The Sun Netra t 1120 is DC-powered. The unit has redundant power feeds. Refer to the
Sun Netra t 1120/1125 Installation and Basic Maintenance Guide that shipped with the product for DC
source site requirements, overcurrent protection, grounding instructions, and power cord installation
instructions. The Sun system must be connected to the power source and grounded as specified in Suns
installation instructions. 5-3
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Power and Grounding
Connecting the Sun Netra t 1125 to Power and Grounding Sources
Connecting the Sun Netra t 1125 to Power and Grounding
Sources
The Sun Netra t 1125 is AC-powered. Refer to the Sun Netra t 1120/1125 Installation and Basic
Maintenance Guide that shipped with the product for AC source site requirements, overcurrent
protection, grounding instructions, and power cord installation instructions. The Sun system must be
connected to the power source and grounded as specified in Suns installation instructions.
Connecting the Sun Enterprise 450 to Power and Grounding
Sources
The Sun E450 is AC-powered. Power cords are not supplied with the unit. Refer to the
Sun E450 Installation and Basic Maintenance Guide that shipped with the product for AC source site
requirements, overcurrent protection, grounding instructions, and power cord installation. The Sun
system must be connected to the power source and grounded as specified in Suns installation
instructions.
Connecting the Sun Netra t 100 and the Sun Netra t 105 to Power
and Grounding Sources
The Sun Netra t 100 is DC-powered, and the Sun Netra t 105 is AC-powered. Refer to the Sun Netra t1
System User and Administration Guide that shipped with the product for DC and AC source site
requirements, overcurrent protection, grounding instructions, and power cord installation instructions.
The Sun system must be connected to the power source and grounded as specified in Suns installation
instructions.
Connecting the Cisco SLT to Power and Grounding Sources
The Cisco SLT can be AC-powered or DC-powered. Use the instructions in this section to connect the
Cisco SLT to power and grounding sources.
Overview of Cisco SLT Power Supplies
Figure 5-1 shows the typical AC power supply for the Cisco SLT. A DC power supply looks similar, but
has a terminal block cover in place of the three-pronged connector for an AC power cord.
Figure 5-2 shows the location of the power supply in a Cisco SLT. In this case an AC power supply is
shown.
Table 5-1 lists AC power supply specifications, and Table 5-2 lists DC power supply specifications.
Each table applies to all SLTs in the respective DC- or AC-powered configuration. 5-4
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Connecting the Cisco SLT to Power and Grounding Sources
Figure 5-1
Cisco SLT AC Power Supply
Figure 5-2 Rear View of Cisco SLT (Cisco 2610 Shown)
10346
AC power supply
Table 5-1
AC Power Supply Specications
Specification
Value
Input voltage
100 to 240 VAC, autoranging
Frequency
50 to 60 Hz
Current rating
3.0A maximum at 100 VAC, 1.5A maximum at
240 VAC
Power dissipation
72W maximum
Table 5-2
DC Power Supply Specications
Specification
Value
Input voltage
38 to 72 VDC
Current rating
5.0A maximum at 38 VDC, 2.8A maximum at
72 VDC
Power dissipation
72W maximum
Wire gauge for
DC-input power
connections
14 AWG
1
1.
AWG = American Wire Gauge.
SEE MANUAL BEFORE INSTALLATION
SERIAL 1
SERIAL 0
CONN
CONN
WIC
2A/S
SEE MANUAL BEFORE INSTALLATION
SERIAL 1
SERIAL 0
CONN
CONN
WIC
2T
Cisco 2610
W1
100-240V 1A
50/60 Hz 47 W
W0
AUX
CONSOLE
ETHERNET 0 ACT
LINK
AC power supply
Cisco 2610
38425 5-5
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Power and Grounding
Connecting the Cisco SLT to Power and Grounding Sources
Tools Required
You need the following tools and equipment to remove and install power supplies in Cisco SLTs: Number 1 Phillips screwdriver Tie-wrap tension tool to cut cable tie-wraps ESD-preventive wrist strap Safety glasses
Removing the Cover
To gain access to the power supply of Cisco SLTs, you must first remove the chassis cover. Use the
following procedure to remove the chassis cover:
Warning
Before working on a chassis or working near power supplies, unplug the power cord on
AC units; disconnect the power at the circuit breaker on DC units.
Warning
Do not touch the power supply when the power cord is connected. For systems with a
power switch, line voltages are present within the power supply even when the power
switch is off and the power cord is connected. For systems without a power switch, line
voltages are present within the power supply when the power cord is connected.
Warning
Do not work on the system or connect or disconnect cables during periods of lightning
activity.
Warning
Before performing any of the following procedures, ensure that power is removed from
the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel
board or the fuse that services the DC circuit, switch the circuit breaker to the OFF
position or remove the fuse, and flag or designate the circuit as out of service until the
work is complete in accordance with safety practices.
Warning
Before performing any of the following procedures, ensure that you are wearing safety
glasses.
Warning
When installing the unit, the ground connection must always be made first and
disconnected last.
Step 1
Turn off power to the router.
Step 2
Remove all network interface cables from the rear panel.
Step 3
If you have an AC-powered router, remove the power cord. 5-6
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Connecting the Cisco SLT to Power and Grounding Sources
If you have a DC-powered router, follow these steps to remove the power cables:
a.
Use a screwdriver to loosen the captive installation screws on the terminal block cover.
b.
Lift and remove the terminal block cover.
c.
Use a screwdriver to remove the three power leads from the terminal block, in the following order:
negative, positive, then ground.
Step 4
If the router is rack- or wall-mounted, remove it from the rack or wall.
Warning
Before opening the chassis, disconnect the telephone-network cables to avoid contact
with telephone-network voltages.
Warning
Network hazardous voltages are present in the BRI cable. If you detach the BRI cable