Network Timing Interfaces; Online Insertion And Removal (Oir) - Cisco NCS 560-4 Hardware Installation Manual

Network Timing Interfaces

The router supports three power supply units that can be used either in 2+1 or 1+ 1 modes, depending on the
overall power requirement of the system.
The Cisco NCS 560-4 Router supports current sharing between the power supplies.
If you install a redundant power supply on the Cisco NCS 560-4 Router, we recommend that you connect
each power supply to a separate input power source in order to ensure that the router maintains power in the
event of a power interruption caused by an electrical failure, a wiring fault, or a tripped circuit breaker.
Status LEDs
LEDs are also provided on each power supply to indicate the status of the input power and the health of the
power supply.
Network Timing Interfaces
The route processor supports the following network timing interfaces:
• BITS input/output port—RJ48 jack
• 1PPS input and output—Mini coaxial connectors
• 2.048 or 10 MHz input and output—Mini coaxial connectors
• 1PPS input or output port—Shielded RJ45 jack
Network timing interfaces support redundancy in a redundant RSP configuration. Network timing interfaces
on a redundant RSP remain in operation while the RSP is in hot standby mode.

Online Insertion and Removal (OIR)

The following table describes the parameters for the OIR of the various modules in the router.
Table 5: Online Insertion and Removal - Parameters
OIR Module
Fan Tray
PSU
Interface Module
RSP
5
6
7
Cisco NCS 560-4 Router Hardware Installation Guide
12
5
Ambient
6
30°C
40°C
40°C
7
It is not recommended to perform OIR of any module above 40°C ambient
Fan Tray OIR should be performed only when a fan's failed condition is encountered and other fans are
spinning at max speed.
It is recommended to shut down the interface modules before attempting to remove them from the
chassis.
Fan Speed OIR Time
100% PWM 5 mins
100% PWM 3 mins
As per the fan 5 mins
algorithm
Cisco NCS 560-4 Router Overview
Comments
Single Fan Fail,
Other Fans running
at 100% PWM
Fans running at
normal speed