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Cisco AS5850 Universal Gateway Hardware Installation Guide

78-10573-06 0A

Chapter 1      Cisco AS5850 Product Overview

Functional Overview

any DS0 can be mapped to any HDLC controller or universal port. You can install multiple ingress 
interface cards of like types and configure the Cisco AS5850 for card or port level redundancy, 
depending on your needs. 

Trunk and port handling cards are tied together using several time-division multiplexing (TDM) buses 
on the backplane. Each line card is also connected, through point-to-point packet buses, to a central 
switch on the Route Switch Controller (RSC) cards. The RSC cards transmit and receive packetized data 
across the IP network.

The Cisco AS5850 supports a split backplane configuration by using two RSC cards. In the classic-split 
configuration, the system operates as two separate universal gateways with each RSC controlling its own 
set of feature cards. In the handover-split mode, if one RSC fails, the other RSC takes control of the 
failed RSC’s feature cards so their operation can continue. In the route processor redundancy (RPR+) 
mode, one RSC acts as the active RSC that controls all the resources in the chassis. The other RSC is the 
standby RSC and assumes control of the chassis if the active RSC fails. RPR+ enables a much faster 
switchover than handover-split mode. For more information about the split backplane configuration, 
refer to the 

“Split Backplane” section on page 1-11

.

The RSC card also provides clock and power control to the feature cards. Each RSC card contains a block 
of logic, referred to as the common logic, and system clocks. This block generates the backplane 4-MHz 
and 8-KHz clocks used for interface timing and for the TDM bus data movement. The common logic can 
use a variety of sources to generate the system timing, including a BITS input signal from the BNC 
connector on the RSC front panel. The clock source can also be telco office timing units extracted from 
the network ingress interfaces.

On the RSC card, only one common logic is active at any one time, which is identified by the CLK 
(clock) LED on the RSC card front panel. The active common logic is user-selectable and is independent 
from each RSC. This assures that if an RSC card needs replacing or if the slave RSC card becomes the 
master, clocking remains stable. The selected common logic should not be changed during normal 
operation unless related hardware failure is suspected or diagnosed.

You can install and upgrade software remotely, without affecting current system operation. You can also 
upload and download configuration files remotely, without affecting current system operation. Remote 
access is enabled by use of simple network management protocol (SNMP), by a Telnet session to a 
console port on the router shelf, through the World Wide Web (WWW) interface, or through use of the 
optional network management software. 

The Cisco AS5850 can dynamically adjust any port to support any user configuration. Individual users 
can be authenticated as they connect to the system by use of one or more authentication servers using 
RADIUS and authentication protocols. Primary and backup authentication servers can define 
user authentication parameters using the user domain and the number called. User profile information 
can also be configured to include time of day, number of simultaneous sessions, and number of 
B-channels used. 

When a remote user connects to the universal gateway using a modem or an ISDN line, the user is 
authenticated and establishes a session. Dynamic address assignment from an authentication server or 
static address assignment connects the user and has virtually no impact on service provider routing 
tables.

A remote LAN user can connect to the universal gateway using an ISDN line or asynchronous serial 
connection, be authenticated, and establish a session. In addition to dynamic or static address 
assignment, this connection requires the traditional Cisco IOS software support for different routing 
protocols on different ports simultaneously, with virtually no impact on service provider routing tables.

Содержание AS5850

Страница 1: ... and microcode allow you to load new software images into Flash memory remotely without having to physically access the universal gateway for fast and reliable upgrades This chapter provides physical and functional overviews to familiarize you with your new Cisco AS5850 The chapter also contains physical descriptions of system hardware and major components and functional descriptions of component ...

Страница 2: ...roduct access acs_serv as5850 sw_conf 5850oamp index htm Command syntax has shifted slightly Because you no longer need to distinguish the Cisco 5814 dial shelf from the Cisco 7206 router shelf commands using the shelf slot port syntax are shortened to slot port The shelf abstraction is no longer needed System Components The following sections in this chapter describe the core system components Ci...

Страница 3: ...ERSAL PORTS PORT STATUS CALLS MAINT CPU POWER 324 UNIVERSAL PORTS PORT STATUS CALLS MAINT MIN HIS T PW R MIN MB US HIS T PW R MB US MIN HIS T PW R MIN MB US HIS T PW R MB US Power 56025 Cooling module Power LED Fault LEDs Captive screws Cool air intake Chassis installation support bracket 14 slot card cage Line port and RSC cards installed Route switch controller RSC cards 2400W AC input power she...

Страница 4: ...IR which allows components to be removed or replaced while the system is powered on Feature cards can be busied out through the software to avoid loss of calls The Cisco AS5850 is compatible with the Cisco Universal Gateway Manager UGM network management software For more on Cisco UGM see the Network Management section on page 1 8 The Cisco AS5850 supports Channelized T1 E1 T3 PRI and STM1 ingress...

Страница 5: ...from the network ingress interfaces On the RSC card only one common logic is active at any one time which is identified by the CLK clock LED on the RSC card front panel The active common logic is user selectable and is independent from each RSC This assures that if an RSC card needs replacing or if the slave RSC card becomes the master clocking remains stable The selected common logic should not b...

Страница 6: ...connects to a central office circuit switched and is multiplexed into a T1 E1 T3 or STM1 trunk 3 The T1 E1 T3 or STM1 interface is terminated and individual serial DS0s are sent to port handling hardware and software Universal ports may be located in the same physical slot as part of a hybrid trunk card or in a universal port card UPC See Figure 1 3 4 Universal ports interface with modem protocols...

Страница 7: ...al gateway field replaceable units Figure 1 4 Power Distribution Note VDC output of the 2400 W AC power shelf is set at 51 volts DC 48 VDC 50A 48 VDC 48 VDC 50A 48 VDC 50A Backplane Cooling module GigE egress RSC PEMF 1 PS 1 120 240 VAC 15A 120 240 VAC 15A 2400W AC input power shelf optional 120 240 VAC 15A PS 2 PS 3 PEMF 2 Cisco AS5850 universal gateway 48 VDC 50A 48 VDC trunk card 72965 universa...

Страница 8: ... As objects are configured or modified the Cisco UGM database is automatically updated to reflect the current configuration of the network Performance Collects performance information from each managed device and its components This information allows you to monitor the network by viewing and graphing performance data associated with an object Security Supports role based access to its management ...

Страница 9: ...ible trunk card configurations for ERSC Table 1 1 Maximum Number of Trunk Cards for RSC Chassis Trunk Type First RSC Second RSC Total Trunk Cards Per Chassis Total 324 port UPC Total DS0s with RSC Total Ports with RSC 24T1 only 2 24T1 2 24T1 4 8 2304 2592 T3 only 2 T3 2 T3 4 6 2688 2808 24T1 T3 combination 2 24T1 2 T3 4 7 2496 2700 24T1 T3 combination 1 24T1 1 T3 1 24T1 1 T3 4 8 2496 3024 24T1 T3 ...

Страница 10: ... if an RSC needs replacing or if the slave RSC becomes the master clocking remains stable The selected common logic should not be changed during normal operation unless related hardware failure is suspected or diagnosed The configuration commands for the master clock specify the various clock sources and a priority for each source Together these commands define a list ordered by priority of the cl...

Страница 11: ...izes system throughput by splitting slots between two RSCs Each RSC controls a certain set of slots slots 0 5 are owned by the RSC in slot 6 and slots 8 13 are owned by the RSC in slot 7 and operates as though slots other than those that it controls contain no cards because those cards are controlled by the other RSC Configuration on each RSC affects only the slots owned by that RSC Calls on a fai...

Страница 12: ... that all feature cards should be reloaded In split backplane mode the final feature card image is downloaded by each card from the RSC that owns it Slot Ownership Arbitration The Cisco AS5850 operates in a default split backplane mode Currently the RSC in slot 6 automatically owns all cards in slots 0 through 5 and does not receive inventory messages from cards present in slots 8 through 13 The R...

Страница 13: ...describes the Cisco AS5850 field replaceable units FRUs Table 1 3 describes available Cisco AS5850 FRUs that can be ordered as spares For information about the feature cards used in the Cisco AS5850 refer to the Cisco AS5850 Universal Gateway Card Guide that shipped with your system For information about other FRUs review the rest of this chapter or for detailed specification tables refer to Appen...

Страница 14: ...l internal power thus preventing equipment damage from excessive heat During normal operation the fans load share to provide cooling If one of the twelve fans fails a warning message displays on your console screen The controller card then increases the speed of the remaining operative fans to maintain acceptable temperature levels When all fans are operating normally fan speed is 1600 rpm As ambi...

Страница 15: ...ard consists of the following components CPU RSC QED RM7000 250MHz ERSC Broadcom BCM1250 650MHZ 1Gigabyte of DDR memory on ERSC I O controller Compact Flash memory card Boot Flash memory EEPROM NVRAM Packet switch ASICs Fast Ethernet console auxiliary and two Gigabit Ethernet interfaces For detailed specification tables refer to Appendix A Cisco AS5850 Specifications Figure 1 6 shows the RSC compo...

Страница 16: ...ains several LEDs push buttons LCDs and connectors Figure 1 7 and Figure 1 8 show the RSC front panel LEDs Figure 1 7 RSC Front Panel 35587 P W R H I S T A L A R M M A I N T MODE MAST CLK FLASH COMPACT FLASH ROUTE SWITCH CONTROLLER ALARM CONSOLE AUX 10 100 BT NETWORK CLOCK LINK ACT SEL Network clock BNC connector Auxiliary port FE port Console port LCD display Push buttons Bell alarm terminal bloc...

Страница 17: ... ALARM CONSOLE 10 100 BT 10 100 BT NETWORK CLOCK LINK ACT SEL LINK ACT Network clock BNC connector FE port FE port Console port LCD display Push buttons Bell alarm terminal block Table 1 4 Route Switch Controller Card Front Panel LEDs LED Indicator Display Description Power and Warning LEDs PWR route switch controller power Green Comes on when power is on and the RSC is not in the reset state HIST...

Страница 18: ...valid Ethernet link has been estab lished ACT Green Indicates traffic activity on the Ethernet Liquid Crystal Displays LCDs upper and lower Alphanumeric 4 characters each Displays SPLT if in classic split mode and HSPL if in handover split mode 1 A major alarm condition includes RSC failure backplane failure fan failure power module failure feature card failure or conditional environmental thresho...

Страница 19: ...ck of logic referred to as the common logic and system clocks This block generates the backplane Stratum compliant 4 MHz and 8 kHz clocks used for interface timing and for the TDM bus data movement The common logic can use a variety of sources to generate this system timing including a T1 or E1 signal input from the BNC connector on the RSC front panel Table 1 6 RSC Push Button Options Function De...

Страница 20: ...nput output devices that plug into a Gigabit EtherChannel module linking the module with the fiber optic network See Figure 1 10 The GBICs fit through cutouts in the front of the module and plug into connectors on the module You can install any combination of supported GBICs Supported GBICs are listed in Table 1 10 on page 1 23 Note When using LX LH GBICs with a 62 5 micron diameter MMF you must i...

Страница 21: ... 10573 06 0A Chapter 1 Cisco AS5850 Product Overview Field Replaceable Units Figure 1 9 RSC Gigabit Ethernet Egress Interfaces 35588 R X S Y N C O P T D E T T X R X S Y N C O P T D E T T X L I N K R X F U L L R X L I N K R X F U L L R X PORT 0 PORT 1 GIGABIT ETHERNET ...

Страница 22: ... TX Green At full rates comes on to indicate outgoing traffic on the link This LED can appear to flicker at low traffic levels LINK Green RX FULL Green RX Green At full rates comes on to indicate incoming traffic on the link This LED can appear to flicker at low traffic levels Table 1 9 GBIC to Host Connector Pin Assignment Pin Signal Pin RX_LOS 1 RGND 2 RGND 3 MOD_DEF 0 4 MOD_DEF 1 5 MOD_DEF 2 6 ...

Страница 23: ...henever possible you should connect each PEMF to a separate DC power source The PEMFs are cooled by system airflow which flows from the top to the back of the chassis The front and sides of the PEMFs are perforated for minimum airflow restriction The PEMFs support the following functions Power redundancy and load sharing The DC input power supply provides redundant power by design During normal op...

Страница 24: ... AS5850 backplane an electronic circuit or interlock trips a breaker in the PEMF and terminates power to the output connectors This same interlock provides reverse polarity protection when the system is powered off Table 1 11 PEMF MBUS Connector Pin Definitions Pin Description 1 Breaker enable 2 5 15 voltage sense to backplane 3 5 15 current sense between PEMFs 4 5 15 voltage sense return to backp...

Страница 25: ...Maintenance monitoring The PEMF contains the environmental maintenance bus Mbus module with a logic card which carries monitor signals throughout the chassis by way of two 10 pin molex MiniFit connectors There are no connectors accessible from the front of the PEMF however a DB 9 connector at the base of the PEMF visible only from below the chassis connects a monitor cable to an optional AC input ...

Страница 26: ...ules immediately ramp up to full power and maintain uninterrupted system power Note The AC input power modules in the 2400W AC input power shelf are hot swappable allowing you to remove or replace a power module while the system is operating system operation will not be affected Whenever possible Cisco recommends that you connect each AC input power module to a separate AC power source Each AC inp...

Страница 27: ...vents the power module from vibrating or sliding out of the power bay and dislodging from the power backplane A small flat blade screwdriver is needed to delatch the AC modules Pulling on the handles without properly releasing the latches can damage the modules Double grounding lugs as per NEBS requirements on both the enhanced AC input power shelf and the chassis provide electrical grounding The ...

Страница 28: ...e self contained AC input power shelf which converts AC input power into DC output for use by the universal gateway The AC input power shelf is rack mounted and has a safety cover that shields the electrical connections in the power shelf rear The AC input to DC output connection supplies 48 VDC output power to the PEMFs Power flows through the filter module to the backplane where it is distribute...

Страница 29: ...RU contains female connectors that connect to the system backplane Each male backplane connector comprises a set of tiered pins in three lengths The backplane pins send specific signals to the system as they make contact with the card connectors The system assesses the signals it receives and the order in which it receives them to determine whether to initialize a startup or shutdown procedure Eac...

Страница 30: ...1 30 Cisco AS5850 Universal Gateway Hardware Installation Guide 78 10573 06 0A Chapter 1 Cisco AS5850 Product Overview Online Insertion and Removal ...

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