Front And Rear Clearances; Cable Management; Route Processor Cables - Cisco NCS 4016 Installation Manual

Cable Management

Front and Rear Clearances

The site requires the following front and rear clearances for chassis installation and maintenance access:
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Note
Cable Management
As the size of the routing system increases, the cabling required for the chassis increases. For example,
a fully loaded Cisco NCS 4016 chassis has more cables connected to it than a partially loaded chassis.
The cabling runs must be carefully planned. The basic configurations for various routing systems should
be arranged to minimize the complexity and length of the cable runs. Precut and terminated cables are
considered part of the basic configuration.
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The upper and lower cable management trays are for organizing these interface cables to keep the front
of the chassis clear and to eliminate sharp bends in the cables.
Caution Excessive bending can damage interface cables.

Route Processor Cables

As you consider system cabling, see
ports on the route processor (RP).
Table 3-1
RP Port
Ethernet management
Alarm
1. STP =
Cisco Network Convergence System 4000 Series Routers Site Planning Guide
3-4
To install the chassis in the equipment rack: approximately 40 inches (101.6cm)
To service components and allow system airflow (both in front of and behind the chassis): 36 inches
(91.4 cm)
Maintain at least 6 inches (15.2 cm) of clearance at both the inlet and exhaust openings on the
chassis and on the power modules to allow sufficient airflow.
CONSOLE or AUX RJ-45 RS-232 serial ports on the route processor cards for terminal connections
Ethernet ports on the route processor cards for connecting network management equipment
Modular service cards (MSCs) and physical layer interface modules (PLIMs) for data connections
Route Processor Cables
Required Cable Type
STP
to external electromagnetic disturbance levels of 10 V/m and
10 Vrms.
Shielded cable. Required for EMC compliance.
shielded twisted-pair
Table 3-1 to determine the types of cables required to connect to
1
cable (Category 5 or better). Required for enhanced immunity
Chapter 3 Site Planning Considerations