Cisco NCS 540 Hardware Installation Guide

DescriptionSignal NamePin
Data -D-A2
Data +D+A3
GroundGndA4
Alarm Port Pinouts
This following table summarizes the external alarm input pinouts:
Table 18: External Alarm Input Pinouts
DescriptionSignal NamePin
Alarm input 0ALARM0_IN1
Alarm input 1ALARM1_IN2
Alarm output closed—3
Alarm input 2ALARM2_IN4
Alarm input 3ALARM3_IN5
Alarm output open—6
Alarm output COM—7
Alarm input COM—8
AC Power Cord Specifications
For more information on the supported power cables, see Ordering information for power cables supported
on NCS 540 on the Cisco Network Convergence System 540 Large Density Routers Data Sheet.
Cisco Network Convergence System 540 Large Density Routers Hardware Installation Guide
72
Appendix
Alarm Port Pinouts

Cisco NCS 540 Specifications

General

Operating System	Cisco IOS XR
Memory	16 GB DDR4
Storage	128 GB SSD
Ports	Multiple 1G/10G/40G/100G Ethernet ports
Forwarding Capacity	800 Gbps
Redundancy	Redundant power supplies and fans
Form Factor	1 RU
Operating Relative Humidity	5% to 95% noncondensing
Input Voltage	100-240 VAC, 50-60 Hz
Power Supply	AC or DC
Processor	Quad-core 2.4 GHz