Appendix

Certain troubleshooting aids of the Cisco NCS 540 enable you to perform these tasks that assist the troubleshooting process:

LEDs


Note

The Cisco NCS 540 Router LEDs are similar for most of the variants, and any differences between the routers are specifically called out.

Router LEDs

All the data port LEDs in the Cisco NCS 540 Router are at the front panel. There are five LEDs that reflect the different statuses of the system.

Table 1. Router LED Descriptions

LED Label

Color

Status

PS0 and PS1

Off

This indicates that there is no AC or DC input.

Red

This indicates 12V output failure. If one of the input feeds is switched off when both the feeds are connected, then that particular feed shows as red.

Green

This indicates 12V output is active.

STS

Off

the system is placed in shutdown mode; only standby power mode is available.

Flashing Amber (Slow)

The module is booting up.

Flashing Amber (Fast)

The module is booting up, shutting down, or is being reloaded.

Amber

Host kernel is booted and is ready to start SysAdmin VM.

Green

The module is operational and has no active major or critical alarms.

Flashing Red

The router has active major or critical alarms.

ALM

Off

No alarm

Red

Critical alarm - system scope, critical temperature

Flashing Red

Critical alarm - Relating to voltage rail failures

Amber

Major alarm - system-scope

Flashing Amber

Minor alarm - system-scope

SYNC

Off

Time core clock synchronization is disabled or in free-running state.

Green

Time core is synchronized to an external source including IEEE1588.

Flashing Green

System is in Synchronous Ethernet mode.

Amber

Acquiring state or Holdover: Time core is in acquiring state or holdover mode.

Fan Assembly LEDs

Table 2. Fan Assembly LEDs

LED Label

Color

Status

FAN

Off

Sytem is powered off.

Green

Fans are operating normally.

Amber

Single fan failure

Red

More than one fan failure

Power Status LEDs

Table 3. Power Status LEDs

LED Label

Color

Status

PWR

Off

Sytem is powered off

Green

All the power supplies are on and operating normally.

Amber

Standby FPGA upgrade is in progress (this is expected to take about three to five minutes).

Red

Power redundancy is lost due to a power feed failure or an internal power supply failure.

Combination of LEDs

Table 4. Fan and Power Status LED Combination

FAN

PWR

Status

For all the conditions below, the system will not boot.

Flashing Red

Flashing Red

Thermal shutdown at Power Up

Flashing Red

Flashing Amber

MSS Ready Failure

Flashing Amber

Flashing Green

TAM Init Failure

Flashing Amber

Flashing Red

TAM Ready Failure

Flashing Amber

Flashing Amber

Secure JTAG Failure

SFP and SFP+ Port LED

Table 5. SFP and SFP+ Port LEDs

LED Label

Color

Status

STATUS

Off

Admin is down

Green

Link is up in 1G/10G ports.

Yellow

Fault or Error or Link Down

Management Port LEDs

Table 6. Management Port LEDs

LED Label

Color

Status

Left LED

Green

Link is up in 1000 Mbps

Blinking Green

Activity in 1000 Mbps

Amber or Orange

Link is up in 100/10Mbps

Blinking Amber or Orange

Activity in 100/10Mbps

Off

Link is down

Right LED

Off

Unused

System Specifications

Certain troubleshooting aids of the Cisco NCS 540 enable you to perform these tasks that assist the troubleshooting process:

Thermal limitations

This table describes the maximum operating temperature range supported for the NCS 540 chassis when using specific optics modules, identified by their product IDs (PIDs). It details:

  • Optics module: The model of the optics module.

  • Chassis PID: The specific chassis or system product IDs that support these optics modules.

  • System maximum and minimum operating temperature supported at MSL: Maximum operating temperature supported by the NCS 540 system at Mean Sea Level (MSL).

  • Ports supported: The specific ports on the chassis where the optics modules can be installed.

Table 7. Thermal limitations

Optics module

Chassis PID

Maxiimum operating temperature at MSL

Ports supported

S10G-LR-PM-D-I

  • N540X-8Z16G-SYS-A/D

  • N540-6Z18G-SYS-A/D

  • N540X-6Z18G-SYS-A/D

  • +55C

  • P24 to P31

  • P18 to P23

  • P18 to P23

S10G-SR-PM-D-I

  • N540X-8Z16G-SYS-A/D

  • N540-6Z18G-SYS-A/D

  • N540X-6Z18G-SYS-A/D

  • +55C

  • P24 to P31

  • P18 to P23

  • P18 to P23

S10G-ER-PM-D-I

  • N540X-8Z16G-SYS-A/D

  • N540-6Z18G-SYS-A/D

  • N540X-6Z18G-SYS-A/D

  • +45C

  • P24 to P31

  • P18 to P23

  • P18 to P23

EMC compliance

This table describes the maximum number of ports supported on various NCS 540 small density router models when using specific optics modules. It details:

  • Optics module: The model of the optics module.

  • Chassis PID: The specific chassis or system product IDs that support these optics modules.

  • Maximum number of supported ports: Refers to the highest number of ports on a chassis that can be supported to meet electromagnetic compatibility (EMC) and electromagnetic interference (EMI) compliance.

Table 8. EMC compliance

Optics module

Chassis PID

Maximum number of supported ports

S10G-LR-PM-D-I

  • N540X-8Z16G-SYS-A/D

  • N540-6Z18G-SYS-A/D

  • N540X-6Z18G-SYS-A/D

6

S10G-SR-PM-D-I

  • N540X-8Z16G-SYS-A/D

  • N540-6Z18G-SYS-A/D

  • N540X-6Z18G-SYS-A/D

6

S10G-ER-PM-D-I

  • N540X-8Z16G-SYS-A/D

  • N540-6Z18G-SYS-A/D

  • N540X-6Z18G-SYS-A/D

6

RJ45 Connectors

The RJ45 connector connects Category 3, Category 5, Category 5e, Category 6, or Category 6A foil twisted-pair or unshielded twisted-pair cable from the external network to the following module interface connectors:

  • Router chassis

    • CONSOLE port

    • MGMT ETH port


Caution
To comply with GR-1089 intrabuilding, lightning immunity requirements, you must use a foil twisted-pair (FTP) cable that is properly grounded at both ends.

The following figure shows the RJ45 connector.

Figure 1. RJ45 Connector

1

Transmit data (bidirectional)

2

NC (Not Connected)

RJ-45 ToD or 1-PPS Port Pinouts


Note

This section is not applicable to Cisco N540-6Z18G-SYS-A/D router.

This summarizes the RJ-45 ToD or 1-PPS port pinouts:

Table 9. RJ-45 ToD or 1-PPS Port Pinouts

Pin

Signal Name

Direction

Description

1

NA

NA

NA

2

NA

NA

NA

3

1PPS_N

Output or Input

1PPS RS422 signal

4

GND

NA

NA

5

GND

NA

NA

6

1PPS_P

Output or Input

1PPS RS422 signal

7

TOD_N

Output or Input

Time-of-Day character

8

TOD_P

Output or Input

Time-of-Day character

Console Port Pinouts

This summarizes the Console port pinouts:

Table 10. Console Port Pinouts

Pin

Signal Name

Direction

Description

1

ACONS-TX

Output

Aux Consoles transmit output, RS232

2

NC

NA

NA

3

CONS-TX

Output

Console RS232 transmit

4

GND

NA

Ground

5

GND

NA

Ground

6

CONS-RX

Input

Console RS232 receive

7

ACONS-RX

Input

Aux Consoles receive input, RS232

8

NC

NA

NA

Alarm Port Pinouts

This summarizes the alarm port pinouts:

Table 11. Alarm Port Pinouts

Pin

Signal Name

Description

1

ALARM1_IN

Alarm input 1

2

ALARM2_IN

Alarm input 2

3

NC

NA

4

ALARM3_IN

Alarm input 3

5

ALARM4_IN

Alarm input 4

6

NC

NA

7

NC

NA

8

ALARM_I_COMMON

Alarm input COM

To set the description of the alarm:


RP/0/RP0/CPU0:ios(config)# environment alarm-contact contact-number description description

To set the severity of the alarm:

RP/0/RP0/CPU0:ios(config)# environment alarm-contact contact-number severity [critical | major | minor]  [

To set the trigger for the alarm:

RP/0/RP0/CPU0:ios(config)# environment alarm-contact contact-number trigger [open | closed]

Note

You can configure up to four external alarms.

The contact-number is the pin number of the connected alarm port, that is Alarm input 1 to Alarm input 4.

The description string can be up to 80 alphanumeric characters in length and is included in any generated system messages.

For severity , enter any one of: critical, major, or minor.

Description and severity are both mandatory values.

Use the show alarms command in admin mode to view the alarm details. Use the show logging command to view the displays the state of syslog error and event logging.

An SNMP trap is sent for every external alarm that is raised or cleared on the system.

USB Port Console Pinouts

This table summarizes the USB port console pinouts:

Table 12. USB Port Console Pinouts

Pin

Signal Name

Description

A1

VCC

+5 VDC

A2

D–

Data–

A3

D+

Data+

A4

GND

Ground

USB Port Memory Pinouts

This table summarizes the USB port memory pinouts:

Table 13. USB Port Memory Pinouts

Pin

Signal Name

Description

A1

VCC

+5 VDC

A2

D–

Data–

A3

D+

Data+

A4

GND

Ground

Management Ethernet Port Pinouts

This table summarizes the management ethernet port pinouts:

Table 14. Management Ethernet Port Pinouts

Pin

Signal Name

1

TRP0+

2

TRP0–

3

TRP1+

4

TRP2+

5

TRP2–

6

TRP1–

7

TRP3+

8

TRP3–

GPS Port Pinouts

The table below summarizes the GPS port pinouts.


Note

This section does not apply to Cisco N540-6Z18G-SYS-A/D router.
Table 15. GPS Port Pinouts

Category

10 MHz (Input and Output)

1PPS (Input and Output)

Waveform

Input—Sine wave

Output—Sine wave

Input—Rectangular pulse

Output—Rectangular pulse

Amplitude

Input— > 1.7 volts p-p

Output— > 2.2 volts p-p

Input— > 1.2V

Output— > 2.5V

Impedance

50 ohms

50 ohms

Pulse Width

50% duty cycle

50% duty cycle

Rise Time

Input—AC coupled

Output—5 nanoseconds