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Cisco AS5850 Universal Gateway Hardware Installation Guide

78-10573-06 0A

Chapter 1      Cisco AS5850 Product Overview

Online Insertion and Removal

DC-Input Power Specifications

The PEMFs provide –48 VDC power, which is distributed from the PEMF to the chassis backplane. No 
damage occurs to the PEMFs if any or all outputs have no load (no load occurs when there are no cards 
plugged into the backplane), or if the maximum input voltage is exceeded; however, input voltages that 
exceed 75V eventually trip the PEMF 60A circuit breaker, and you might have to reset the breaker.

The Cisco AS5850 supports several types of logic cards with varying power requirements. As a result, 
each logic card DC-to-DC converter system is isolated from the distributed –48 VDC power, creating a 
more stable distributed power system.

Online Insertion and Removal 

The Cisco AS5850 supports online insertion and removal (OIR), which allows you to remove and 
replace a field-replaceable unit (FRU) while the system is operating, without affecting system operation. 

Note

This section describes the mechanical functions of the system components and emphasizes the 
importance of following the correct procedures to avoid unnecessary circuit board failures. This 
section is for background information only.

Each FRU 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.

Each RSC card and feature card is designed with two ejector levers to be used when you install or remove 
a card. The function of the ejector levers (see 

Figure 3-4

) is to align and securely seat the card connectors 

in the backplane and facilitate the installation and removal process. 

Do not force the RSC cards or feature cards into the slot, because this can damage the card connector 
pins if they are not aligned properly with the card connectors. 

To avoid erroneous failure messages, you must allow at least 15 seconds for the system to reinitialize 
and note current interface configurations before you remove or insert another RSC card or feature card 
in the chassis.

Note

If you need to OIR the RSC serving as the primary clock source with a split backplane configuration, 
you will need to switch the primary clock source to the other RSC as described in Chapter 4, 
“Maintenance” in the 

Cisco AS5850 Operations, Administration, Maintenance, and Provisioning 

Guide

, available online at: 

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/as5850/sw_conf/5850oamp/
index.htm

Summary of Contents for AS5850

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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 ...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 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 ...

Page 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...

Page 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...

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