- Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
- Book Title
- Cisco ASR 920 Series Aggregation Services Router Overview
- Results
- Chapter: Cisco ASR 920 Series Aggregation Services Router Overview
- Cisco ASR 920 Series Aggregation Services Router Overview
- Cisco ASR 920 Router Features
- GigabitEthernet Copper Ports
- GE SFP Ports
- SFP+ Ports
- Limitation
- External Interfaces
- Network Interfaces
- Network Timing Interfaces
- External Alarm Inputs
- Management Interfaces
- Power Supply and Fans
- Маршрутизатор Cisco ASR-920-12CZ-D
- Характеристики Маршрутизатор Cisco ASR-920-12CZ-D
- Условия доставки
- Условия оплаты
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
Book Title
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
Cisco ASR 920 Series Aggregation Services Router Overview
Results
Chapter: Cisco ASR 920 Series Aggregation Services Router Overview
- Cisco ASR 920 Series Aggregation Services Router Overview
- Cisco ASR 920 Router Features
- GigabitEthernet Copper Ports
- GE SFP Ports
- SFP+ Ports
- Limitation
- External Interfaces
- Network Interfaces
- Network Timing Interfaces
- External Alarm Inputs
- Management Interfaces
- Management ENET Port
- RS232 Console Port
- USB Console
- USB Mass Storage
- Zero Touch Provisioning Button
- RS232 Auxiliary Console Port
- PWR and STAT LEDs
- CPU Management Port LEDs
- SFP LEDs
- SFP+ LEDs
- RJ-45 LEDs
- Power Supply Unit LEDs
- System–Interface LED Behavior
Cisco ASR 920 Series Aggregation Services Router Overview
The Cisco ASR 920 Series Aggregation Services Router is a family of fixed configuration routers that enables Service Providers to provide business, residential, and mobile access services to their users. It is the Carrier Ethernet access platform providing Ethernet services.
The Cisco ASR 920 routers complement and extend Cisco’s current and planned Carrier Ethernet routing portfolio providing a cost optimized, and extended temperature range access platform.
The Cisco ASR 920 routers do not have high availability features.
Cisco ASR 920 Router Features
The Cisco ASR 920 family of routers includes:
- ASR 920-Indoor version [ASR-920-12CZ-A / ASR-920-12CZ-D]—This sub-family has fixed ENET interfaces (12 x 1GE + 2 x 10GE or 2 x 1GE or any combinations of 1 GE and 10 GE among the two ports available) and dual power supplies (AC/DC).
- ASR 920-Compact version [ASR-920-4SZ-A / ASR-920-4SZ-D]—This sub-family of routers have a compact form factor and configurable ports: 4 x 1 GE or 4 x 10 GE or any combinations of 1 GE and 10 GE among the four ports available. In addition, there are 2 x 1 GE copper ports available.
The following table provides snapshot of the number and type of supported ports:
GigabitEthernet Copper Ports
Fixed copper GigabitEthernet (GE) interfaces are provided through standard RJ-45 connectors. These ports support the following features:
- Standard 10/100/1000Base-T/TX operation with forced or auto-negotiation for speed and duplex.
- Automatic crossover (auto-MDIX) for straight-through and crossover connections.
- Pause flow control as defined by the 802.3x standard.
- Frame size of 9216 bytes.
- Synchronous ENET operation that provides its recovered receive clock as an input clock source for the SETS as well as uses the system-wide reference clock to derive its transmit clock.
GE SFP Ports
The GE SFP ports support the following features:
- 100Base-FX and 1000Base-X SFP modules.
- Digital optical monitoring as specified by the SFP.
- Any mix of SFPs is supported unless specifically noted.
- Pause flow control as defined by the 802.3x standard.
- Frame size of 9216 bytes.
- Synchronous ENET operation that provides its recovered receive clock as an input clock source for the SETS as well as uses the system-wide reference clock to derive its transmit clock.
SFP+ Ports
The SFP+ ports support the following features:
- Digital optical monitoring as specified by the optical transceiver module.
- Any mix of SFPs is supported unless specifically noted.
- Pause flow control as defined by the 802.3x standard.
- Frame size of 9216 bytes.
- Smart SFPs do not support synchronous ENET operations
The following figures show the port numbering for the Cisco ASR 920 router:
Power Supply 0 LED (AC or DC)
Power Supply 1 LED (AC or DC)
RJ-48 slots for BITS (upper slot) and ToD (lower slot)
Zero Touch Provisioning button
4x1GE SFP + 8x1GE SFP combo ports
Port 0 is located at the bottom left, port 1 is located at the top left, and so on.
Four 1G/10G Dual Rate Ports
Port 2 is located at the bottom left, port 3 is located at the top left, and so on.
Power Supply 0 LED (AC or DC)
Power Supply 1 LED (AC or DC)
RJ-48 slots for BITS (upper slot) and ToD (lower slot)
Zero Touch Provisioning button
The table below describes the other features of Cisco ASR-920-12CZ (AC and DC) and Cisco ASR-920-4SZ (AC and DC) Routers.
DimensionWidth x Depth x Height
Ports 4 to 11 are combo ports
Link/Activity/Duplex LED indication
Link/Activity/Duplex LED indication
Three temperature sensors
External ports for BITS/TOD
External ports for BITS/TOD
Limitation
When a P router acts as a mid-node and has a multicast receiver connected to it, for a default Multicast Distribution Tree (MDT), the packets that reach the multicast receiver from the ingress Provider Edge (PE) receive Experimental Bits (EXP). But, marking is lost when the same stream egresses out from the P router towards another PE router that has the same multicast receiver connected to it .
External Interfaces
The Cisco ASR 920 routers have these external physical interfaces on the front panel:
Network Interfaces
The network interfaces are provided through these fixed ports:
- GE SFP ports—supports 100/1000 modes
- GE Copper RJ-45 ports—supports 10/100/1000 operation
- 10GE SFP+—supports 10G/1G mode depending on the SFP+/SFP in the network interface slot
Network Timing Interfaces
- BITS input or output—The BITS interfaces support clock recovery from either a T1 at 1.544 MHz or an E1 at 2.048 MHz, configurable by software. BITS interface is provided through a standard RJ-48 connector on the front panel.
- 1PPS input or output and ToD input or output—This shielded RJ-45 interface is used for input or output of time-of-day (ToD) and 1PPS pulses. ToD format includes both NTP and IEEE 1588-2008 time formats.
The same RS422 pins for 1PPS and TOD are shared between input and output directions. The direction for each can be independently configurable through software.
External Alarm Inputs
The device supports four dry contact alarm inputs through an RJ-45 jack on the front panel.
The alarm condition is normally open, which indicates that no current flows through the alarm circuit, and the alarm is generated when the current is flowing. Each alarm input can be provisioned as being critical, major, or minor.
Management Interfaces
The Cisco ASR 920 routers have the following management interfaces:
Management ENET Port
A single management copper ENET port supporting 10/100/1000Base-T operation is provided at the front panel. It uses a standard RJ-45 jack.
Note The management ENET port is not a data plane port. RS232 Console Port
The RS232 console port provides transmission (Tx), reception (Rx), and grounding (Gnd).
Note The RS232 console port is enabled through only the Cisco-designed cable adapter USB type A cable to RJ-45 adapter cable. To use this port, disable the flow control on the terminal. USB Console
A single USB 2.0 Type-A receptacle is provided on the front panel of the Cisco ASR 920 router for providing console access to ROMMON, Cisco IOS-XE and diagnostics. While it uses the Type-A connector, it operates as a USB peripheral only for connection to an external host computer. This interface requires the use of a Type-A to Type-A connector instead of a standard USB cable.
Note Use of the USB console is mutually exclusive of the RS232 console port. This interface requires the use of a Type-A to Type-A USB cable. USB Mass Storage
A single USB 2.0 Type-A receptacle is provided on the front panel of the Cisco ASR 920 router for inserting external USB mass storage devices, such as standard USB flash drives. This interface is used to load images, load or store configurations, write logs, and so on. It supports operation up to 12Mbps.
Maximum memory supported in ROMmon is 8GB and in Cisco IOS is 16GB.
Zero Touch Provisioning Button
The Zero Touch Provisioning (ZTP) button on the front panel initiates the ZTP process on a short press of less than eight seconds. Pressing the ZTP button for more than eight seconds causes a system reset.
For more information on ZTP, see Power and Status LED section.
RS232 Auxiliary Console Port
The RS232 Aux console port provides transmission (Tx), reception (Rx), and ground (Gnd).
Note The RS232 Aux console port is enabled only through the Cisco-designed cable adapter from USB type A cable to RJ-45 adapter cable. Note This is a debug-only port. it is recommended that this port be used by field service engineers only. Power Supply and Fans
The routers support AC and DC power supplies in a 1+1 redundant configuration.
One AC and one DC power supply in the same router is also a supported configuration.
Note The power supply units are built-in and are not modular. Table 2. Power Supply Specification
Маршрутизатор Cisco ASR-920-12CZ-D
Маршрутизатор Cisco ASR-920-12CZ-D на платформе процессора QFP (Quantum Flow Processor), оборудован 2 портами Gigabit Ethernet и 2 — 10GE. Эта линейка высокопроизводительных устройств Cisco обеспечивает реализацию полнофункциональных сегментов доступа для обслуживания абонентов беспроводных и проводных сетей. Модульная архитектура позволяет расширять возможности устройства по мере необходимости. Маршрутизатор обеспечивает широкий диапазон решений для сетевых операторов, в частности, поддерживает функции синхронизации (ToD/1PPS, BITS, 1588v2, SyncE) и многопротокольную коммутацию по меткам (MLPS) на уровне доступа.
Характеристики Маршрутизатор Cisco ASR-920-12CZ-D
10/100/1000Base-T; 1000Base-X; 10GBase-X
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