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 is at the front panel. There are 5 LEDs that reflect the different statuses of the system.


Note
The following table is applicable only for Cisco N540-24Z8Q2C-SYS, N540X-ACC-SYS, and N540-ACC-SYS variants.
Table 1. Router LED Descriptions
LED Color Status

STATUS

Green

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

Amber

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

Red

Power-up failure is preventing the CPU from booting (set by hardware).

Flashing Amber (Slow)

The module is booting up (set by IOFPGA).

Flashing Amber (Fast)

The module is booting up (set by BIOS), shutting down, or the SysAdmin VM is being reloaded.

Flashing Red

RP0 has active major or critical alarms.

Off

The module is powered-off (set by hardware).

ALARM

Red

Critical alarm - system-scope (including RP0).

Flashing Red

Critical alarm - Relating to voltage rail failures.

Amber

Major alarm - system-scope (including RP0).

Flashing Amber

Minor alarm - system-scope (including RP0).

Off

No alarm.

SYNC

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.

Off

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

STATUS + ALARM (Both LEDs)

Flashing Red

Secure Boot boot flash contents validation failed. (set by IOFPGA). This case is only applicable immediately after power-on.

TIMING

Off

GPS config and GPS port is down. Time-of-day (ToD), 1PPS, and 10 MHz ports are not provisioned or disabled.

Amber

ToD, 1PPS, and 10 MHz signals are not valid.

Green

GPS port is up. ToD, 1PPS, and 10 MHz signals are valid.

GNSS

Off

GNSS is not configured.

Green

GNSS Normal State. Self-survey is complete.

Red

Power up. GNSS is not tracking any satellite.

Amber

Auto holdover.

Flashing Green

Learning state–normal. Self-survey is not completed.

Note
The following table is applicable only for Cisco N540-28Z4C-SYS-A/D, N540-12Z20G-SYS-A/D, N540X-16Z4G8Q2C-A/D, N540X-16Z8Q2C-D and N540-12Z20G-SYS-A/D variants.
Table 2. Router LED Descriptions

LED

Color

Status

Alarm

Red

Critical alarm - system-scope (including RP0).

Amber

Major alarm - system-scope (including RP0).

Flashing Amber

Minor alarm - system-scope (including RP0).

Off

No alarm.

Status

Green

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

Amber

Host kernel booted and XR is booting.

Flashing Red

Not Applicable.

Fan Assembly LEDs

Cisco NCS 540 has 4 fans at the back panel. There is an LED on each fan assembly and they reflect the different status of the fans.


Note
The following table is applicable only for Cisco N540-24Z8Q2C-SYS, N540X-16Z8Q2C-D, N540X-ACC-SYS, and N540-ACC-SYS variants.
Table 3. Fan Assembly LED Descriptions
LED Color Status

STATUS

Green

Fans are operating normally.

Amber

Single fan failure.

Red

More than one fan failure or a single PSU fan failure.

Off

Fan tray is not receiving power.


Note
The following table is applicable only for Cisco N540-28Z4C-SYS-A/D, N540-12Z20G-SYS-A/D, N540X-12Z16G-SYS-A/D, and N540X-16Z4G8Q2C-A/D variants.
Table 4. Fan Assembly LED Descriptions
LED Color Status

FAN

Green

Fans are operating normally.

Amber

Single fan failure.

Red

More than one or single fan failure or single PSU fan failure (only on N540-28Z4C-SYS-A/D and N540-12Z20G-SYS-A/D variants) and missing fan tray (only on N540X-16Z4G8Q2C-A/D variant).

Power Supply LEDs


Note
The following table is applicable only for Cisco N540-24Z8Q2C-SYS, N540X-16Z8Q2C-D, N540X-ACC-SYS, and N540-ACC-SYS variants.
Table 5. Power Supply LED Descriptions

POWER LED

FAIL LED

Power Supply Condition

Green

Off

Power Supply ON; valid input/output.

Amber 1Hz flashing

Red 1Hz flashing

PSU Warning due to:

  • Over current

  • Over temperature

  • Under voltage

  • Over voltage

  • Over power

  • Fan failure

Off

On

PSU failure due to:

  • Over current

  • Over temperature

  • Under voltage

  • Over voltage

  • Over power

  • Fan failure

Green 1Hz flashing

Off

Power supply is not plugged in to the chassis or shutdown by the system.

Off

Off

No valid power input.

Amber

Off

Low input voltage.

Note
The following table is applicable only for Cisco N540-28Z4C-SYS-A/D, N540-12Z20G-SYS-A/D, N540X-12Z16G-SYS-A/D, and N540X-16Z4G8Q2C-A/D variants.
Table 6. Power Supply LED Descriptions
LED Color Status

PWR

Green

Power Supply ON and operating normally.

Off

Not receiving power or PSU-12V fail or 3V3 STDBY failure.

Red

Power failure with one of the input power feeds failed or one of the on-board voltage rails has failed.

Amber

STDBY FPGA upgrade is in progress due to post Reload/Power cycle after HW FPD upgrade All.

Note

 
Upgrade of the STDBY FPGA takes 3–5 minutes.

Fan Assembly and Power Supply LED Combination


Note
The following table is applicable only for Cisco N540-28Z4C-SYS-A/D, N540-12Z20G-SYS-A/D, N540X-12Z16G-SYS-A/D, and N540X-16Z4G8Q2C-A/D variants.
Table 7. Fan Assembly and Power Supply LED Combination Descriptions

Fan LED

Power LED

Status

Off

Red

Power failure with one of the input power feeds failed or one of the on-board voltage rails has failed.

—

Amber

STDBY FPGA upgrade is in progress due to post Reload/Power cycle after HW FPD upgrade All.

Note

 
Upgrade of the STDBY FPGA takes 3–5 minutes.

Green

Flashing Amber

Thermal shutdown with no fan

Flashing Red

Flashing Red

Thermal shutdown

Flashing Red

Flashing Amber

MSS Ready=0

Flashing Amber

Flashing Green

TAM init fail

Flashing Amber

Flashing Red

TAM Not Ready

Flashing Amber

Flashing Amber

SECURE JTAG Fail

Flashing Green

Flashing Green

BIOS Validation Failure

Off

Green

Power Supply ON and operating normally.

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 8. Thermal limitations

Optics module

Chassis PID

Maximum operating temperature at MSL

Ports supported

SFP-10G-OLT20-X

  • N540-24Z8Q2C-SYS

  • N540-ACC-SYS

  • +50C

  • P0,P2,P4,P6,P8,P10,P12,P14, P16,P18, P20,P22,P24,P26,P28,P30

  • N540X-16Z4G8Q2C-D

  • N540X-16Z4G8Q2C-A

  • +50C

  • P4,P5,P6,P7,P8,P9,P10,P11,P13, P15,P17,P19,P21, P23,P25,P27

  • N540-28Z4C-SYS-D

  • N540-28Z4C-SYS-A

  • +50C

  • P0,P1,P2,P3,P5,P7,P9,P11, P13,P15,P17,P19,P21,P23,P25,P27

QSFP-100G-ZR4-S

  • N540-28Z4C-SYS-D

  • N540-28Z4C-SYS-A

  • +55C

  • P28 and P30

DWDM-SFP10G-C-I

  • N540X-12Z16G-SYS-A

  • N540X-12Z16G-SYS-D

  • +65C

  • P20 to P27

S10G-LR-PM-D-I

  • N540-24Z8Q2C-SYS

  • N540-28Z4C-SYS-A/D

  • N540-12Z20G-SYS -A/D

  • N540X-12Z16G-SYS-A/D

  • N540X-16Z4G8Q2C -A/D

  • +68C

  • +68C

  • +68C

  • +65C

  • +65C

  • All ports (P0-31)

  • P3 to P25

  • P20 to P31

  • P16 to P27

  • P4 to P19

S10G-SR-PM-D-I

  • N540-24Z8Q2C-SYS

  • N540-28Z4C-SYS-A/D

  • N540X-12Z16G-SYS-A/D

  • N540-12Z20G-SYS -A/D

  • N540X-16Z4G8Q2C-A/D

  • +69C

  • +69C

  • +65C

  • +69C

  • +65C

  • All ports (P0-31)

  • P3 to P25

  • P16 to P27

  • P20 to P31

  • P4 to P19

S10G-ER-PM-D-I

  • N540-24Z8Q2C-SYS

  • N540-28Z4C-SYS-A/D

  • N540X-16Z4G8Q2C-A/D

  • N540X-12Z16G-SYS-A/D

  • +60C

  • +60C

  • +63C

  • +60C

  • All ports (P0-31)

  • P3 to P25

  • P4 to P19

  • P16 to P27

DP01QS28-E20

  • N540X-16Z4G8Q2C-A

  • N540-24Z8Q2C-M

  • +45C

  • Two 100GE ports

EMC compliance

This table describes the maximum number of ports supported on various NCS 540 medium 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 9. EMC compliance

Optics module

Chassis PID

 Maximum number of supported ports

S10G-LR-PM-D-I

  • N540-24Z8Q2C-SYS

  • N540-28Z4C-SYS-A/D

  • N540-12Z20G-SYS -A/D

  • N540X-12Z16G-SYS-A/D

  • N540X-16Z4G8Q2C -A/D

6

S10G-SR-PM-D-I

  • N540-24Z8Q2C-SYS

  • N540-28Z4C-SYS-A/D

  • N540X-12Z16G-SYS-A/D

  • N540-12Z20G-SYS -A/D

  • N540X-16Z4G8Q2C-A/D

6

S10G-ER-PM-D-I

  • N540-24Z8Q2C-SYS

  • N540-28Z4C-SYS-A/D

  • N540X-16Z4G8Q2C-A/D

  • N540X-12Z16G-SYS-A/D

6

RJ-45 Connectors

The RJ-45 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 RJ-45 connector.

Figure 1. RJ-45 Connector

1

Pin 1

2

Pin 2

GPS Port Pinouts

The platform is capable of receiving or sourcing GPS signals of 1 PPS & 10 MHz. These interfaces are provided by two mini-coax 50-Ohm, 1.0/2.3 DIN series connector on the front panel. Similarly there are two mini-coax 50-Ohm connectors provided in the front panel to output this 1PPS and 10MHz.

This table below summarizes the GPS port pinouts:

Table 10. GPS Port Pinouts

10 MHz (Input and Output)

1PPS (Input and Output)

Waveform

Input—Sine wave

Output—Square wave

Input—Rectangular pulse

Output—Rectangular pulse

Amplitude

Input— > 1.7 volt p-p(+8 to +10 dBm)

Output— > 2.4 volts TTL compatible

Input— > 2.4 volts TTL compatible

Output— > 2.4 volts TTL compatible

Impedance

50 ohms

50 ohms

Pulse Width

50% duty cycle

26 microseconds

Rise Time

Input—AC coupled

Output—5 nanoseconds

40 nanoseconds

Time-of-Day Port Pinouts

This table summarizes the ToD/1-PPS port pinouts:

Table 11. RJ-45 ToD/1-PPS Port Pinouts

Pin

Signal Name

Direction

Description

1

–

–

–

2

–

–

–

3

1PPS_N

Output or Input

1PPS RS422 signal

4

GND

–

–

5

GND

–

–

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

BITS Interface

This table summarizes the BITS interface RJ48 port pinouts:

Table 12. BITS Interface RJ48 Port Pinouts

Pin

Signal Name

Direction

Description

1

RX Ring

Input

Receive Ring

2

RX TIP

Input

Receive TIP (T1/E1)

3, 6, 7, 8

—

NC

—

4

TX Ring

Output

Transmit Ring

5

TX TIP

Output

Transmit TIP (T1/E1)

Management and PTP Ethernet Port Pinouts

This following table summarizes the Management and Precision Time Protocol (PTP) Ethernet port pinouts:

Table 13. Management and PTP Ethernet Port Pinouts

Pin

Signal Name

1

TRP0+

2

TRP0-

3

TRP1+

4

TRP1-

5

TRP2+

6

TRP2-

7

TRP3+

8

TRP3-

USB Port Pinouts

This following table summarizes the USB port pinouts:

Table 14. USB Port Pinouts

Pin

Signal Name

Description

A1

Vcc

+5 VDC

A2

D-

Data -

A3

D+

Data +

A4

Gnd

Ground

Alarm Port Pinouts

The following table summarizes the external alarm input pinouts for the following NCS 540 router variants:

  • N540-ACC-SYS

  • N540X-ACC-SYS

  • N540-24Z8Q2C-SYS

  • N540X-16Z8Q2C-D

  • N540-28Z4C-SYS

Table 15. External Alarm Input Pinouts

Pin

Signal Name

Description

1

ALARM0_IN

Alarm input 0

2

ALARM1_IN

Alarm input 1

3

—

No connect

4

ALARM2_IN

Alarm input 2

5

ALARM3_IN

Alarm input 3

6

—

No connect

7

—

No connect

8

COMMON

Alarm common

The following table summarizes the external alarm input pinouts for the following NCS 540 router variants:

  • N540-28Z4C-SYS-A/D

  • N540X-16Z4G8Q2C-A/D

  • N540-12Z20G-SYS-A/D

  • N540X-12Z16G-SYS-A/D

Table 16. External Alarm Input Pinouts

Pin

Signal Name

Description

1

ALARM0_IN

Alarm input 0

2

ALARM1_IN

Alarm input 1

3

—

Alarm output closed

4

ALARM2_IN

Alarm input 2

5

ALARM3_IN

Alarm input 3

6

—

Alarm output open

7

—

Alarm output COM

8

—

Alarm input COM

Effective Cisco IOS XR Release 7.3.1, you can enable external alarms for external doors, voltage, fire, thermal, and water sensors on the following variants of Cisco NCS 540:

  • N540-24Z8Q2C-SYS

  • N540X-ACC-SYS

  • N540-ACC-SYS

To set the description:

sysadmin-vm:0_RP0(config)# alarm-contact contact-number description description

To set the severity of the alarm:

sysadmin-vm:0_RP0(config)# alarm-contact contact-number severity [critical | major | minor]

Effective Cisco IOS XR Release 7.4.1, you can enable external alarms for external doors, voltage, fire, thermal, and water sensors on the following variants of Cisco NCS 540:

  • N540-28Z4C-SYS-A/D

  • N540-12Z20G-SYS-A/D

  • N540X-16Z4G8Q2C-A/D

  • N540X-12Z16G-SYS-A/D

To set the description:

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 0 to Alarm input 3.

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.

Console Port Pinouts

The following table summarizes the Console port pinouts.


Note
The following table is applicable only for Cisco N540-24Z8Q2C-SYS, N540X-ACC-SYS, and N540-ACC-SYS variants.
Table 17. Console Port Pinouts

Pin

Signal Name

Direction

Description

1

Loop1

NA

Loopback 1

2

Loop2

NA

Loopback 2

3

TxD

Output

Console RS232 transmit

4

Gnd

NA

Ground

5

Gnd

NA

Ground

6

RxD

Input

Console RS232 receive

7

Loop2

NA

Loopback 2

8

Loop1

NA

Loopback 1


Note
The following table is applicable only for Cisco N540-28Z4C-SYS-A/D, N540-12Z20G-SYS-A/D, N540X-12Z16G-SYS-A/D, and N540X-16Z4G8Q2C-A/D variants.
Table 18. Console Port Pinouts

Pin

Signal Name

Direction

Description

1

ACONS-TX

Output

Aux Consoles transmit output, RS232

2

NC

NA

Receive TIP (T1/E1)

3

CONS-TX

Output

Console RS232 transmit

4

Gnd

NA

Ground

5

Gnd

NA

Ground

6

CONS-RX

Input

Console RS232 receive

7

ACONS-RTX

Input

Aux Consoles receive input, RS232

8

NC

NA

NA