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Site Preparation Checklist
the power to bring it within the allowable range; for short lengths of fiber, with fiber and
connector loss close to zero, an attenuator of 5 to 10 dB should be sufficient.
For specifications of minimum and maximum input level (receiver sensitivity and receiver
saturation) and minimum and maximum output level (average launch power) for the
SONET/SDH PICs supported on the M5 and M10 routers, see the M5 and M10 Internet
Routers PIC Guide.
Cable Specifications for Routing Engine Management Interfaces
For management and service operations, you connect the Routing Engine to an external
console or management network through ports on the craft interface. For information about
the ports, see "Routing Engine Interface Ports and Status Indicators" on page 15.
Table 13 lists the specifications for the cables that connect to management ports.
Table 13: Cable Specifications for Routing Engine Management Interfaces
Site Preparation Checklist
The checklist in Table 14 summarizes the tasks you need to perform when preparing a site
for router installation.
Table 14: Site Preparation Checklist
52
M5 and M10 Internet Routers Hardware Guide
Cable
Port
Specification
Routing Engine
RS-232 (EIA-232)
console or
serial
auxiliary
interface
Routing Engine
Category 5 cable
Ethernet
or equivalent
interface
suitable for
100BaseT
operation
Item or Task
Verify that environmental factors such
as temperature and humidity do not
exceed router tolerances (see "Router
Environmental Tolerances" on page 40).
Measure distance between external power
sources and router installation site.
Cable/Wire
Maximum
Supplied
Length
One 6-ft (1.83-m)
6 ft (1.83 m)
length with
DB-9/DB-9
connectors
One 15-ft (4.57-m)
328 ft (100 m)
length with
RJ-45/RJ-45
connectors
Performed
By
Date
Router
Receptacle
DB-9 male
RJ-45
autosensing
Notes
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Troubleshooting
