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C H A P T E R

6

Troubleshooting Aids

Certain troubleshooting aids of the Cisco ASR 920 Router enable you to perform these tasks that assist the
troubleshooting process:

•

Verify Pinout, on page 65

•

Check Optical Fiber Specifications, on page 69

•

Check Alarm Conditions, on page 69

•

Check LED Indicators, on page 69

Verify Pinout

Pinouts provide input signal (to the device) and output signal (from the device) information. Bits (BITS) port,
GPS Port (1PPS and 10MHz), USB Console (CONSOLE) port, Time-of-Day (TOD) port, Alarm (ALARM)
port, USB (USB CON and USB MEM) port, and Management Ethernet (MGMT) port pinout information is
provided in the following sections.

BITS Port Pinouts

The following table summarizes the BITS port pinouts.

Table 11: BITS Port Pinouts

Description

Direction

Signal
Name

Pin

Receive
Ring

Input

RX Ring

1

Receive Tip

Input

RX Tip

2

Not used

—

—

3

TX Ring

Output

TX Ring

4

TX Tip

Output

TX Tip

5

Not used

—

—

6

Cisco ASR-920-12SZ-A and Cisco ASR-920-12SZ-D Aggregation Services Router Hardware Installation Guide

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Содержание ASR-920-12SZ-A

Страница 1: ...DAggregationServices Router Hardware Installation Guide First Published 2018 07 16 Americas Headquarters Cisco Systems Inc 170 West Tasman Drive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 NETS 6387 Fax 408 527 0883 ...

Страница 2: ... 2018 Cisco Systems Inc All rights reserved ...

Страница 3: ...idelines for DC Powered Systems 7 Guidelines for AC Powered Systems 7 Prevent Power Loss 7 Preventing ESD Damage 7 Overview 9 C H A P T E R 2 Power Supply 10 GNSS Module 11 Network Timing Interfaces 11 Management Interfaces 11 Alarm 11 Console 11 Auxiliary Console 11 USB Console 12 USB Memory 12 Management Port 12 Dual Rate Ports 1GE 10GE SFP Ports 12 LED Indicators 13 Fan Module 15 Cisco ASR 920 ...

Страница 4: ...ections 22 Interference Considerations 22 Rack Mounting Guidelines 23 Precautions for Rack Mounting 23 Rack Selection Guidelines 23 Receive the Device 23 Unpack and Verify Shipped Contents 25 Tools and Equipment 26 Install the Router 27 C H A P T E R 4 Rack Compatibility 27 Rack Types 27 Set up Device on Rack or Wall 29 Rack Mount 29 Install Rack Brackets 29 Set Up Device on Rack 31 Attach the Cab...

Страница 5: ... Mac OS X 51 Connecting to the Console Port Using Linux 52 Installing the Cisco USB Device Driver 52 Uninstalling the Cisco USB Device Driver 53 Connecting a USB Flash Device 53 Removing a USB Flash Device 53 Install GNSS Module 54 Connecting Timing Cables 55 Connecting a Cable to the BITS Interface 56 Connecting Cables to the GPS Interface 56 Connect to EIA Console Port 57 Connect a Management Et...

Страница 6: ...ooting Aids 65 C H A P T E R 6 Verify Pinout 65 BITS Port Pinouts 65 GPS Port Pinouts 66 Time of Day Port Pinouts 66 Alarm Port Pinouts 67 Management Ethernet Port Pinouts 67 USB Console Port Pinouts 68 USB MEM Port Pinouts 68 Check Optical Fiber Specifications 69 Check Alarm Conditions 69 Check LED Indicators 69 Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware In...

Страница 7: ...y when mounting or servicing this unit in a rack you must take special precautions to ensure that the system remains stable The following guidelines are provided to ensure your safety This unit should be mounted at the bottom of the rack if it is the only unit in the rack When mounting this unit in a partially filled rack load the rack from the bottom to the top with the heaviest component at the ...

Страница 8: ...uct In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures Statement 340 Warning This equipment is in compliance with the essential requirements and other relevant provisions of Directive 1999 5 EC Statement 287 Warning Suitable for mounting on and over a concrete or other non combustible surface only Statement 345 Warni...

Страница 9: ...beams or view directly with optical instruments Statement 1051 Warning Safety with Electricity Before working on a chassis or working near power supplies unplug the power cord on AC units disconnect the power at the circuit breaker on DC units Statement 12 Warning Before working on equipment that is connected to power lines remove jewelry including rings necklaces and watches Metal objects will he...

Страница 10: ... shock do not connect safety extra low voltage SELV circuits to telephone network voltage TNV circuits LAN ports contain SELV circuits and WAN ports contain TNV circuits Some LAN and WAN ports both use RJ45 connectors Use caution when connecting cables Statement 1021 Warning A readily accessible two poled disconnect device must be incorporated in the fixed wiring Statement 1022 Warning To reduce t...

Страница 11: ...ty or an electrician if you are uncertain that suitable grounding is available Statement 1024 Warning Installation of the equipment must comply with local and national electrical codes Statement 1074 Warning Hazardous voltage or energy may be present on power terminals Always replace cover when terminals are not in service Be sure uninsulated conductors are not accessible when cover is in place St...

Страница 12: ...t locations unless the jack is designed to handle such locations Never install telephone wiring during a lightning storm Power Supply Considerations Check the power at your site to ensure that you are receiving clean power free of spikes and noise If necessary install a power conditioner Power Connection Guidelines This section provides guidelines for connecting the device power supplies to the si...

Страница 13: ...tacles should connect to protective earth ground at the service equipment Prevent Power Loss Use the following guidelines to prevent power loss to the router To prevent loss of input power ensure that the total maximum load on each circuit supplying the power supplies is within the current ratings of the wiring and breakers In some systems you can use an UPS to protect against power failures at yo...

Страница 14: ...stallation screws if any to release the bus connectors from the backplane or midplane Handle components by their handles or edges only do not touch the printed circuit boards or connectors Place a removed component board side up on an antistatic surface or in a static shielding container If you plan to return the component to the factory immediately place it in a static shielding container Avoid c...

Страница 15: ... a single fixed AC power supply 12 1 10GE SFP interfaces Timing 1PPS 10MHz ToD interfaces and pluggable a GNSS module Figure 1 Cisco ASR 920 12SZ A Front Panel View Cisco ASR 920 12SZ D with dual fixed DC power supplies 12 1 10GE SFP interfaces Timing 1PPS 10MHz ToD interfaces and a pluggable GNSS module Figure 2 Cisco ASR 920 12SZ D Front Panel View Auxiliary Console AUX CONS 2 Time of Day TOD 1 ...

Страница 16: ...rfaces on page 11 Management Interfaces on page 11 Management Port on page 12 Dual Rate Ports 1GE 10GE SFP Ports on page 12 LED Indicators on page 13 Fan Module on page 15 Licensing the Router on page 15 Power Supply The Cisco ASR 920 12SZ A router has one fixed power supply module for AC input The Cisco ASR 920 12SZ D router has dual fixed redundant power supply modules for DC input The Cisco ASR...

Страница 17: ...dard RJ 48 connector on the front panel ToD The time of day interface can output the ToD in a format configurable by software However this interface can be configured as an input interface also In this case the router can read the ToD information from the external GPS unit ToD interface is provided through a standard RJ 48 connector on the front panel Management Interfaces Alarm The router support...

Страница 18: ...ions write logs and so on More than 8 GB is not supported in ROMMON mode Note Management Port A single management copper ENET port supporting 10 100 1000 operation is provided on the front panel It uses a standard RJ 45 jack Dual Rate Ports 1GE 10GE SFP Ports The Gigabit Ethernet SFP ports support the following features 100BASE FX and 1000Base X SFP modules Digital optical monitoring as specified ...

Страница 19: ...r LED No input power is connected Off Power on board is ok Green Board is powered off by ADM Red 0 5 second blinking red suggests the system is off due to external factors such as overheated system multiple fan failures or user initiation Blinking Red Reserved Amber Status LED During power up state this LED provides booting status and report errors Table 3 Status LED System Status Status LED FPGA ...

Страница 20: ...plete Green GNSS is in powerup state GNSS is not tracking any satellite Orange Auto holdover Amber Learning state is normal self survey is in progress Blinking green Management Port LED Table 5 Management Port LED Management Port Condition Management Port LED Link up in 1000 Mbps Green Left LED Activity in 1000 Mbps Blinking green Link up in 100 10 Mbps Amber Orange Activity in 100 10 Mbps Blinkin...

Страница 21: ... ASR 920 12SZ routers support the following licenses Port Licensing Port Upgrade license is available as a Pay as you Grow model 10G upgrade license The Cisco ASR 920 12SZ routers do not support 1G port upgrade licenses Note Timing license 1588 Timing license is required if the router is used as a master clock Advanced Metro IP Access Default Metro IP Access Metro Access Cisco Smart Licensing Smar...

Страница 22: ...Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 16 Overview Licensing the Router ...

Страница 23: ...orting out interior components Position system cables and power supply cable carefully Route system cables and the power supply cable and plug so that they are not stepped on or tripped over Be sure that nothing else rests on your system component cables or power cable Do not modify power cables or plugs Consult a licensed electrician or your power company for site modifications Always follow your...

Страница 24: ...fore installation After installation ensure that the environmental characteristics continue to be met For an outside plant installation cell site cabinet hut and so on you require to protect the chassis against airborne contaminants dust moisture insects pests corrosive gases polluted air or other reactive elements We recommend that you install the unit in a fully sealed enclosure or cabinet Examp...

Страница 25: ...e racks are not congested An enclosed rack must have louvered sides and a fan to provide cool air Heat that is generated by the equipment near the bottom of the rack may be drawn upward into the intake ports of the equipment above When mounting a chassis on an open rack ensure that the rack frame does not block the exhaust fans When a rack installed equipment fails especially equipment on an enclo...

Страница 26: ...t power option provides a second identical power supply to ensure uninterrupted power supply Applicable only to Cisco N540 24Z8Q2C SYS N540X ACC SYS and N540 ACC SYS routers Note Connect each power supply to a separate input power source Otherwise it results in total power failure to the system due to a fault in the external wiring or a tripped circuit breaker To prevent loss of input power ensure...

Страница 27: ... Consider the distance limitations for signaling electromagnetic interference EMI and connector compatibility Possible cable types are fiber thick or thin coaxial foil twisted pair or unshielded twisted pair cabling Also consider any additional interface equipment that you need such as transceivers hubs switches modems channel service units CSU or data service units DSU Before you install the chas...

Страница 28: ...onment paying special attention to the need for electrical surge suppression Radio Frequency Interference When electromagnetic fields act over a long distance radio frequency interference RFI may be propagated Building wiring can often act as an antenna receiving the RFI signals and creating more EMI on the wiring If you use a twisted pair cable in your plant wiring with a good distribution of gro...

Страница 29: ... between the center lines of the mounting holes on the two mounting posts must be 18 31 inches 46 50 centimeters 0 06 inch 0 15 centimeter The rack mounting hardware included with the chassis is suitable for most 19 inches 48 3 centimeters equipment racks Install the chassis on a rack with the following features NEBS compliant 19 inches 48 3 centimeters rack or 23 inches 58 42 centimeters EIA or E...

Страница 30: ...ption Label Packing carton 4 Outside carton for accessories 1 Accessories tray 5 Assembly packaging material 2 Router 3 Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 24 Prepare for Installation Receive the Device ...

Страница 31: ...iner for the following optional equipment Power cord if ASR 920 12SZ A is shipped Lugs if a ASR 920 12SZ D is shipped If you do not specify the type of power cable US power cable for the AC device variant is supplied Note Optional equipment Most Cisco documentation is available online The chassis Pointer Card that is shipped with your Cisco ASR 920 Series Router contains links and information to o...

Страница 32: ...connecting to the Ethernet ports Console terminal that is configured for 9600 baud 8 data bits no parity no flow control and 1 stop bit Console cable for connecting to the console port Ratcheting torque screwdriver with a Phillips head that exerts up to 30 pound force per square inch 0 02 kilograms force per square millimeter kgf mm2 of pressure Crimping tool as specified by the ground lug manufac...

Страница 33: ...asks Rack Compatibility on page 27 Set up Device on Rack or Wall on page 29 Ground the Device on page 42 Connect Power Cables on page 43 Connect Gigabit Ethernet Ports on page 47 Connect Chassis to Network on page 50 Rack Compatibility We recommend that you follow these rack specifications Rack Types Figure 5 Rack specification EIA 19 inches and 23 inches Cisco ASR 920 12SZ A and Cisco ASR 920 12S...

Страница 34: ...k Type Post Type 482 6mm 19 465mm 18 312 450 8mm 17 75 19 inches 48 3 centimeters 4 Post 2 Post 584 2mm 23 566 7mm 22 312 552 45mm 21 75 23 inches 58 4 centimeters 4 Post 2 Post Figure 6 Four Post Rack Type Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 28 Install the Router Rack Types ...

Страница 35: ...k Brackets The device is shipped with rack mounting brackets that are to be secured on the sides of the device Step 1 Remove the rack mounting brackets from the accessory kit and position them beside the device You can install the brackets at any of the three positions that are shown in the following figures Note Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware In...

Страница 36: ...nch EIA Rack Front Position Figure 9 Attaching Mounting Brackets to Router for a 19 Inch EIA Rack Middle Position Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 30 Install the Router Install Rack Brackets ...

Страница 37: ...mended maximum torque of 10 inch pounds 1 1 newton meters Set Up Device on Rack Ensure adequate clearance when mounting the device on a rack Note Install cable guides before installing the device in a 19 inches 48 3 centimeters EIA rack Note Step 1 Position the device on the rack and use the images as a guide to set up the device Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services R...

Страница 38: ...Figure 11 Set Up Device on 19 inch Rack Front Mount Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 32 Install the Router Set Up Device on Rack ...

Страница 39: ...Figure 12 Set Up Device on 19 inch Rack Mid Mount Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 33 Install the Router Set Up Device on Rack ...

Страница 40: ...Figure 13 Set Up Device on 19 inch Rack Rear Mount Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 34 Install the Router Set Up Device on Rack ...

Страница 41: ...Figure 14 Set Up Device on 21 inch Rack Front Mount Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 35 Install the Router Set Up Device on Rack ...

Страница 42: ...ore installing the chassis on the rack Note Ensure that the cable guide is mounted in the orientation as shown in the following images Note Step 1 Position the cable guide right against the front of the chassis and align the two screw holes as shown in the figure Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 36 Install the Router Attach the C...

Страница 43: ...Cable Guide on 19 Inch Rack Figure 17 Mid Mount Device with Cable Guide on 19 Inch Rack Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 37 Install the Router Attach the Cable Guides ...

Страница 44: ...able Guide on 19 Inch Rack Figure 19 Front Mount Device with Cable Guide on 21 Inch Rack Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 38 Install the Router Attach the Cable Guides ...

Страница 45: ...cable guides on to the chassis before you mount the chassis on the wall Install Wall Brackets The device is shipped with wall mounting brackets that must be secured on the sides of the device Step 1 Remove the wall mounting brackets from the accessory kit and position them beside the device Install the brackets as shown in the figure Note Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation S...

Страница 46: ...guide against the front of the device and align the four screw holes as shown in the figure Step 2 Use a tape measure and level to verify that the device is installed straight and on level Step 3 Secure the cable guides with four M6x12mm screws The recommended maximum torque is 26 inch pounds 3 newton meters Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Install...

Страница 47: ...ollowing figure Note Figure 22 Wall Mount the Device Before mounting the device ensure that all unused holes at the sides of the device are protected with screws Caution Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 41 Install the Router Wall Mount the Device ...

Страница 48: ...rier s requirements for grounding This unit must be installed in a restrictive access location and must be permanently grounded to a minimum 6 AWG copper ground wire Step 1 If your ground wire is insulated use a wire stripping tool to strip the ground wire to 0 5 inch 12 7 millimeters 0 02 inch 0 5 millimeters Figure 24 Stripping a Ground Wire Step 2 Slide the open end of the 2 hole ground lug ove...

Страница 49: ... power supply attach the AC and the DC power cables Attach AC Power Cables This task is applicable only on the Cisco ASR 920 12SZ A Router Note Step 1 Lift the power retainer Step 2 Plug in the power cord into the power supply unit Step 3 Push the power retainer cord towards the power supply cord to lock it in place as shown in the following figure Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Agg...

Страница 50: ... indicates a power problem see the LED Indicators section in the Overview chapter Service AC Power Supply While servicing the AC power supply disconnect the power cord from the power source Do not touch the metal prongs of the power retainer cord when it is still connected to the power supply Caution Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Gu...

Страница 51: ...screw and cage nut to which a torque of 1 3 to 1 8 newton meters may be applied Note Figure 26 DC Connector with Inbuilt Screw 0 27 inch 0 68 centimeter C 0 97 inch 2 4 centimeters A 0 81 inch 2 centimeters M 0 31 inch 0 78 centimeter B Step 1 Open the DC power supply guard as shown in following figure Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation ...

Страница 52: ...ve the tape from the circuit breaker device handle and restore power by moving the circuit breaker device handle to the On position Step 2 Verify the power supply operation by ascertaining that the power supply LEDs PS0 or PS1 on the front panel are green Step 3 If the LEDs indicate a power problem see the LED Indicators section in the Overview chapter Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D...

Страница 53: ...entation for the SFP or SFP module at Cisco SFP and SFP Transceiver Module Installation Notes Select the port on the device where you insert the SFP module If you choose copper cables connect to an RJ 45 connector The device 10 100 1000 ports configure themselves to operate at the speed of devices to which they are connected By default autonegotiation is enabled in the chassis You can manually set...

Страница 54: ...tor or the optical interfaces in the SFP modules Disconnect all cables before removing or installing an SFP module Removing and installing an SFP module can shorten its useful life Do not remove and insert SFP modules unless necessary Caution The following figure shows an SFP module that has a bale clasp latch Figure 29 SFP Module with Bale Clasp Latch Some SFP modules identify the top side of the...

Страница 55: ...moved SFP module in an antistatic bag or other protective environment For information about inspecting and cleaning fiber optic connections see Inspection and Cleaning Procedures for Fiber Optic Connections Connect Fiber Optic SFP Modules Do not remove the rubber plugs from the SFP module port or from the fiber optic cable until you are ready to connect the cable The plugs and caps protect the SFP...

Страница 56: ... to connect to the Cisco ASR 920 Router using console cables Connecting to the USB Serial Port Using Microsoft Windows This procedure shows how to connect to the USB serial port using Microsoft Windows Install the USB device driver before establishing a physical connection between the router and the PC by plugging the USB console cable into the USB serial port Otherwise the connection fails For mo...

Страница 57: ...cable 2 USB Type A console port 1 Connecting to the Console Port Using Mac OS X This procedure describes how to connect a Mac OS X system USB port to the console using the built in OS X terminal utility Step 1 Use the Finder to choose Applications Utilities Terminal Step 2 Connect the OS X USB port to the router Step 3 Enter the following commands to find the OS X USB port number Example macbook u...

Страница 58: ... dev Step 4 Connect to the USB port with the following command followed by the router USB port speed Example root usb suse dev screen dev ttyACM0 9600 To disconnect the Linux USB console from the terminal window enter Ctrl a followed by then quit Installing the Cisco USB Device Driver A USB device driver must be installed the first time a Microsoft Windows based PC is connected to the USB serial p...

Страница 59: ... Step 1 Choose Start Control Panel Add or Remove Programs Uninstall a program Step 2 Scroll to Windows Driver Package Exar corporation xrusbser Ports and click Remove The Program Maintenance window is displayed Step 3 Click Yes to uninstall the driver Connecting a USB Flash Device To connect a USB flash device to the Cisco ASR 920 Router insert the memory stick in the USB port labeled USB MEM The ...

Страница 60: ...mory stick simply insert the module into the USB port labeled USB MEM as shown in figure The flash memory module can be inserted only one way and can be inserted or removed regardless of whether the router is powered up or not This completes the USB flash memory installation procedure Install GNSS Module Step 1 Remove the GNSS blank as shown in the following figure Step 2 Ensure that the GNSS modu...

Страница 61: ...that are supplied with the accessory kit The recommended maximum torque is of 10 inch pounds 1 1 newton meters Connecting Timing Cables The sections describe how to connect timing cables to the Cisco ASR 920 Router Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 55 Install the Router Connecting Timing Cables ...

Страница 62: ...48C cable Step 3 Connect the other end to the BTS patch or demarcation panel at your site Step 4 Turn on the power to the router For information about the BITS port pinouts see the Troubleshooting section Connecting Cables to the GPS Interface The sections describe how to connect cables from the Cisco ASR 920 Router to a GPS unit for input or output timing of frequency When installing the cables t...

Страница 63: ...Configure the software with the following parameters 9600 baud 8 data bits No parity 1 stop bit No flow control Connect a Management Ethernet Cable When using the Ethernet Management port in the default mode speed auto and duplex auto the port operates in the auto MDI MDI X mode The port automatically provides the correct signal connectivity through the Auto MDI MDI X feature and senses a crossove...

Страница 64: ...Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 58 Install the Router Connect a Management Ethernet Cable ...

Страница 65: ...is pressed during this time is interpreted as a command to be executed when the messages stop That action results in getting the device to power off and start over It takes a few minutes for the messages to stop appearing Caution Step 1 Switch on the power supply Step 2 Observe the system LEDs to monitor the initialization process When the system boot is complete the process takes a few seconds th...

Страница 66: ...are Research tool on Cisco com The tool provides the minimum Cisco IOS XE requirements for individual hardware modules and components To access this tool you must have a Cisco com login account Note To access the Software Research tool 1 Go to http software cisco com selection research html 2 In the Search by Product tab type ASR 920 3 The Cisco Suggested Release versions are displayed Configure D...

Страница 67: ...r Step 3 From the user EXEC mode enter the enable command Router enable Step 4 At the password prompt enter your system password if a password has not been set on your system you can skip this step Password enablepass When your password is accepted the privileged EXEC mode prompt is displayed Router You now have access to the CLI in privileged EXEC mode You can enter necessary commands to complete...

Страница 68: ... may enter a question mark for help Use ctrl c to abort configuration dialog at any prompt Default settings are in square brackets Basic management setup configures only enough connectivity for management of the system extended setup will ask you to configure each interface on the system The basic management setup configures enough connectivity for managing the system the extended setup prompts yo...

Страница 69: ...afely To power down the device safely Step 1 Slip on the ESD preventive wrist strap included in the accessory kit Step 2 Enter the reload command Step 3 Click the Enter key when prompted to confirm Step 4 Wait for the system bootstrap message before powering down the system Step 5 Remove power cables if any from the device For power supplies with a circuit breaker switch position the switch to the...

Страница 70: ...Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 64 Configure the Device Safely Power Down the Device ...

Страница 71: ...nformation Bits BITS port GPS Port 1PPS and 10MHz USB Console CONSOLE port Time of Day TOD port Alarm ALARM port USB USB CON and USB MEM port and Management Ethernet MGMT port pinout information is provided in the following sections BITS Port Pinouts The following table summarizes the BITS port pinouts Table 11 BITS Port Pinouts Description Direction Signal Name Pin Receive Ring Input RX Ring 1 Re...

Страница 72: ...aveform Input 2 4 volts TTL compatible Output 2 4 volts TTL compatible Input 1 7 volt p p 8 to 10 dBm Output 2 4 volts TTL compatible Amplitude 50 ohms 50 ohms Impedance 26 microseconds 50 duty cycle Pulse Width 40 nanoseconds Input AC coupled Output 5 nanoseconds Rise Time Time of Day Port Pinouts The following table summarizes the ToD 1 PPS port pinouts Table 13 RJ 45 1PPS ToD Port Pinouts Descr...

Страница 73: ...Pinouts Description Signal Name Pin Alarm input 0 ALARM0_IN 1 Alarm input 1 ALARM1_IN 2 No connect 3 Alarm input 2 ALARM2_IN 4 Alarm input 3 ALARM3_IN 5 No connect 6 No connect 7 Alarm common COMMON 8 Management Ethernet Port Pinouts The following table summarizes the Management Ethernet port pinouts Table 15 Fan Alarm Port Pinout Signal Name Pin TRP0 1 Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ ...

Страница 74: ...a D A 2 Data D A 3 Ground Gnd A 4 The USB console port 5VDC is input and operates as an USB peripheral device Note USB MEM Port Pinouts The following table summarizes the USB MEM port pinouts Table 17 Single USB MEM Port Pinouts Description Signal Name Pin 5VDC 500mA Vcc A 1 Data D A 2 Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 68 Troubles...

Страница 75: ...the SFP module at http www cisco com en US partner products hw modules ps5455 prod_installation_guides_list html Check Alarm Conditions The following table summarizes the meaning of the alarm conditions on the Cisco ASR 920 Router Table 18 Alarm Condition Summary Alarm Meaning Alarm Type Port in down state Environmental sensor threshold exceeded critical level voltage temperature Critical Environm...

Страница 76: ...Cisco ASR 920 12SZ A and Cisco ASR 920 12SZ D Aggregation Services Router Hardware Installation Guide 70 Troubleshooting Aids Check LED Indicators ...

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