Cisco Systems 15454M6DC Manual De Usuario
1-31
Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter 1 Hardware Installation
Power and Ground Installation
Step 3
Remove or loosen the #8 power terminal screws on the ONS 15454. To avoid confusion, label the cables
connected to the BAT1/RET1 power terminals as 1, and the cables connected to the BAT2/RET2 power
terminals as 2.
connected to the BAT1/RET1 power terminals as 1, and the cables connected to the BAT2/RET2 power
terminals as 2.
Note
Use only pressure terminal connectors, such as ring and fork types, when terminating the
battery, battery return, and frame ground conductors.
battery, battery return, and frame ground conductors.
Caution
Before you make any crimp connections, coat all bare conductors (battery, battery return, and
frame ground) with an appropriate antioxidant compound. Bring all unplated connectors,
braided strap, and bus bars to a bright finish, then coat with an antioxidant before you connect
them. You do not need to prepare tinned, solder plated, or silver-plated connectors and other
plated connection surfaces, but always keep them clean and free of contaminants.
frame ground) with an appropriate antioxidant compound. Bring all unplated connectors,
braided strap, and bus bars to a bright finish, then coat with an antioxidant before you connect
them. You do not need to prepare tinned, solder plated, or silver-plated connectors and other
plated connection surfaces, but always keep them clean and free of contaminants.
Caution
When terminating power, return, and frame ground, do not use soldering lug, screwless
(push-in) connectors, quick-connect, or other friction-fit connectors.
(push-in) connectors, quick-connect, or other friction-fit connectors.
Step 4
Strip 1/2 inch of insulation from all power cables that you will use. Crimp the lugs onto the ends of all
power leads.
power leads.
Note
When terminating battery and battery return connections as shown in
, follow a
torque specification of 10 in-lbs. When terminating a frame ground, use the kep-nut provided
with the ONS 15454 and tighten it to a torque specification of 31 in-lbs. The kep-nut provides
a frame ground connection that minimizes the possibility of loosening caused by rotation
during installation and maintenance activity. This type of prevention is inherently provided
by the terminal block for battery and battery return connections.
with the ONS 15454 and tighten it to a torque specification of 31 in-lbs. The kep-nut provides
a frame ground connection that minimizes the possibility of loosening caused by rotation
during installation and maintenance activity. This type of prevention is inherently provided
by the terminal block for battery and battery return connections.
Step 5
Terminate the return 1 lead to the RET1 backplane terminal. Use oxidation-prevention grease to keep
connections non-corrosive.
connections non-corrosive.
Warning
Do not secure multiple connectors with the same bolt assembly.
Step 6
Terminate the negative 1 lead to the negative BAT1 backplane power terminal. Use oxidation prevention
grease to keep connections non-corrosive.
grease to keep connections non-corrosive.
Step 7
If you use redundant power leads, terminate the return 2 lead to the positive RET2 terminal on the ONS
15454. Terminate the negative 2 lead to the negative BAT2 terminal on the ONS 15454. Use
oxidation-preventative grease to keep connections non-corrosive.
15454. Terminate the negative 2 lead to the negative BAT2 terminal on the ONS 15454. Use
oxidation-preventative grease to keep connections non-corrosive.
Route the cables out below the power terminals using the plastic cable clamp.