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Alcatel 7750 SR-12, Installation Manual

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Alcatel 7750 SR-12 Installation Manual Download Page 152

SF/CPM Port Types

Page 150

7750 SR-12

SF/CPM P

ORT

 T

YPES

Figure 51

 displays the port types on the SF/CPM. 

Figure 51: Port Types

•

The Building Integrated Timing Supply (BITS) port on the SF/CPM front panel is a clock 
in a central office that supplies digital signal level 1 (DS1) and/or composite clock timing 
references to all synchronous network elements in that office. This port is provisioned with 
an RJ-48 connector. An appropriate T1 cable must be used to connect an asynchronous 
serial device to this port. 

•

The Console port is a Universal Asynchronous Receiver/Transmitter (UART) port used to 
configure router and system parameters and can be also be used for monitoring purposes. 
The console port is enabled by default. The default Baud rate is 115,200. This port is 
provisioned with an DB-9 connector. Connect the console port to a terminal with an RS-
232 serial cable. 

The DTE/DCE switch on the front panel controls the serial port type as either data terminal 
equipment (DTE) or data communications equipment (DCE). The port is configured as 
DTE or DCE depending on the switch setting. No crossover cables are required. 

•

The Auxiliary port is a Universal Asynchronous Receiver/Transmitter (UART) port used 
to connect a modem, laptop, or other auxiliary devices to the router. It is configured as data 
terminal equipment (DTE). This port is provisioned with an DB-9 connector. You must use 
an RS-232 serial cable to connect an asynchronous serial device to this port.

•

The Alarm port is provisioned as a DB-9 serial port and is used to connect to external 
alarm devices that report conditions that trigger red or amber alarms. You must provide an 
appropriate cable configured according to the your alarm panel.

•

The Management port is a 10/100 Ethernet port which is a channel to download images 
and manage the system. This port is provisioned with an RJ-45 jack on the front panel. You 
must provide a CAT5 Ethernet cable to connect to the port. 

SR40028

BITS

CONSOLE

AUX

ALARM

MANAGEMENT

DTE/DCE SWITCH

Summary of Contents for 7750 SR-12

Page 1: ...7750 SR 12 INSTALLATION GUIDE Document Part Number 93 0019 01 December 2003 ...

Page 2: ... This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Canadian Requirements Only...

Page 3: ...ons 35 Power Module Specifications 36 MDA Specifications 37 Component Power Consumption 38 Component Specifications 39 The Equipment Rack 40 Rack Clearance Requirements 41 Safety Considerations 42 Grounding 42 Power 42 Fans 43 Air Filter 43 Storage 43 Safety Standards Compliance Agency Certifications 44 Installing the 7750 SR 12 Unpacking the Chassis 46 Unpacking Precautions 46 Rack Mounting the C...

Page 4: ...stem 88 Using the Compact Flash Slot 3 Locking Mechanism 89 Initial System Startup 90 Troubleshooting 90 Establishing Router Connections 93 Console Connection 93 Telnet Connection 95 Ejecting Flash Cards 97 Installing the IOMs and MDAs Configuring Chassis Slot IOM and MDA Parameters 100 Configuring Chassis Slot and IOM Parameters 100 Configuring MDA Parameters 101 Example 101 Installing IOMs 103 W...

Page 5: ... a Filler Panel Blank 131 Replacing an IOM 132 MDAs 133 Warnings and Notes 133 Changing the MDA Configuration 134 Removing an MDA 135 Replacing an MDA 136 Power Modules 137 Warnings and Notes 137 Removing a DC PEM 139 Replacing a DC PEM 141 AC Power Shelves and Rectifiers 143 Disconnecting AC Power Cables 143 Impeller Trays 145 Warnings and Notes 145 Removing an Impeller Tray 146 Replacing the Imp...

Page 6: ...Page 4 7750 SR 12 Table of Contents ...

Page 7: ...39 Table 15 Storage Specifications 43 Table 16 Safety Standards and Compliance Agency Certifications 44 Installing the 7750 SR 12 Table 17 Rack Mounting the 7750 SR 12 Chassis 52 Table 18 Ground Wire Descriptions 56 Table 19 Ground Wire Descriptions 58 Table 20 Impeller Tray Descriptions 61 Installing Power Supplies Table 21 Installing a DC PEM 67 Table 22 DC Power Cable 70 Table 23 DC Input Termi...

Page 8: ...121 Appendix C Pinout Assignments Table 32 BITS Port RJ48C Female 151 Table 33 Console Port DTE Mode DB9 Male 151 Table 34 Console Port DCE Mode DB9 Male 152 Table 35 Auxiliary Port DTE Mode Only DB9 Male 152 Table 36 Alarm Port DB9 Female 153 Table 37 10 100 Management Ethernet Port RJ45 Female 153 ...

Page 9: ...ing Lug 58 Figure 15 Installing Impeller Trays 61 Installing Power Supplies Figure 16 Installing a DC PEM 67 Figure 17 DC Terminal Block Stud Dimensions and Spacing 69 Figure 18 DC Terminal Block Lug 69 Figure 19 Preparing the DC Cable 70 Figure 20 Removing the DC Terminal Block Safety Cover 71 Figure 21 Wiring the DC Input Power Terminal Block 71 Figure 22 DC Input Power Terminal Block Wiring wit...

Page 10: ...ceable Units Figure 39 Removing the Air Filter Tray 120 Figure 40 Replacing the Air Filter Tray 122 Figure 41 Removing an SF CPM Module 124 Figure 42 Replacing the SF CPM Module 125 Figure 43 Replacing an IOM 132 Figure 44 Removing an MDA 135 Figure 45 Replacing an MDA 136 Figure 46 Removing a DC PEM 139 Figure 47 Replacing a DC PEM 141 Figure 48 Disconnecting AC Power Cables 144 Figure 49 Removin...

Page 11: ...wer rectifiers available from Alcatel Instructions to wire AC power shelves and AC power rectifiers to the DC PEMs are provided AC rectifiers and AC power shelves are available from Alcatel and are packaged and shipped separately This guide includes instructions to remove and install field replaceable parts Each 7750 SR 12 router is shipped with blank panels installed in the component slots Blank ...

Page 12: ...Table 1 Information Symbols Symbol Meaning Description Danger This symbol warns that improper handling and installation could result in bodily injury An electric shock hazard could exist Before you begin work on this equipment be aware of hazards involving electrical circuitry networking environments and instigate accident prevention procedures Caution This symbol warns that improper handling and ...

Page 13: ...uter and related products from a distributor or authorized reseller contact the technical support staff for that distributor or reseller for assistance If you purchased an Alcatel service agreement contact technical assistance at Telephone United States 1 866 338 5100 International 1 650 237 5263 ...

Page 14: ...Page 12 7750 SR 12 ...

Page 15: ...4 7750 SR 12 Modules on page 19 SF CPMs on page 19 Synchronization in Redundant Systems on page 24 IOMs on page 25 MDAs on page 25 Chassis Components on page 26 DC Power Entry Modules on page 27 AC Power Supply Modules on page 28 Cooling System on page 29 Air Filter on page 30 Blank Panels on page 30 Cable Management System on page 30 7750 SR 12 System Installation Process on page 32 ...

Page 16: ...em operation if the primary fails The 7750 SR 12 provides access to components from both the front and back sides The filter tray SF CPMs IOMs and MDAs are accessed from the front of the chassis The power entry modules PEMs and cooling trays impeller trays are accessible from the chassis rear Figure 1 and Figure 2 show front and rear views DC PEMs are horizontally oriented and are accessed through...

Page 17: ...7750 SR 12 Overview 7750 SR 12 Page 15 Figure 1 7750 SR 12 Chassis Front View 3 1 2 8 4 5 1 6 7 11 10 10 2 9 SR12001B ...

Page 18: ...s Front View Features Key Description 1 Cable management system 2 Chassis slot numbers 3 MDA installed 4 Full slot panel blank 5 SF CPM 6 MDA blank panel 7 Rack mounting brackets 8 Air vent 9 ESD plug 10 Compact flash slots 11 Compact flash slot 3 cf3 ...

Page 19: ...rview 7750 SR 12 Page 17 Figure 2 displays the 7750 SR 12 rear view Refer to Table 3 for key descriptions Figure 2 7750 SR 12 Chassis Rear View VDC RTN VDC RTN OFF O ON I OFF O ON I 1 2 7 6 3 4 5 3 3 10 9 9 SR12002B ...

Page 20: ... studs 2 Rack mounting brackets 3 Impeller fan trays 4 VDC studs for DC power cable 5 RTN studs for DC power cable 6 Safety cover 7 OFF ON DC switch 8 Impeller fan tray faceplate 9 DC PEMs The top slot is referred to as PEM Slot 1 The lower slot is referred to as PEM Slot 2 10 DB 25 connector status ...

Page 21: ...The SF CPM connects directly to the backplane and carries traffic between line cards The backplane provides high speed access to the SF CPMs IOMs and MDAs The switch fabric SF portion of the SF CPM receives and directs traffic to the appropriate destinations according to the routing information Each SF CPM module can accommodate up to 3 compact flash memory cards which can be used to copy and stor...

Page 22: ...nal shutdown or administratively down M S Ctl Master Slave active standby CPM designation Green Indicates that the CPM is designated as the active SF CPM in a redundant system Green blinking Indicates that the CPM is operating as the standby CPM in a redundant system M S Ref The M S LED is lit only on the active CPM Master Slave clocking reference designation Green Indicates that the SF CPM is des...

Page 23: ...are lit only on the active CPM Green Indicates that a power supply module is installed and operational in the associated slot Amber Indicates an error condition with an installed power supply module in the associated slot Unlit Indicates that a power supply module is not installed or not recognized If AC power rectifiers are used then a status cable must be connected from each AC power shelf to a ...

Page 24: ...itions this LED should remain off 4 BITS The BITS port is provisioned with a RJ 45 jack and used for the network clock source 5 DTE If the switch is flipped to DTE the console port is acting as a data terminal equipment DTE serial port Default DTE 115 200 baud 8 bit no parity DCE If the switch is flipped to DCE the console port is acting as a data communications equipment DCE serial port 6 Console...

Page 25: ...ard releases 12 Compact Flash 2 Slot Default filename cf2 See the Compact Flash LED description for the status of a compact flash slot To eject a flash card gently depress the ejector button until the flash card releases 13 Compact Flash 3 Slot Default filename cf3 This slot should be used to download the boot and configuration images See the Compact Flash LED description for the status of a compa...

Page 26: ... synchronization the config system synchronization command must be specified with either the boot env parameter or the config parameter When the boot env parameter is specified the BOF boot ldr config and image files are automatically synchronized When the config parameter is specified only the config files are automatically synchronized Automatic synchronization also occurs whenever the BOF is mo...

Page 27: ...with Small Form factor Pluggable SFP optics providing outstanding flexibility to mix and match interfaces per slot as customer and network needs dictate MDAS Alcatel s Ethernet MDAs for the Service Edge Router family provide the critical high speed interfaces An MDA is a plug in module allowing selection among fiber optic twisted pair and coaxial cable A maximum of 2 MDAs can be installed on each ...

Page 28: ...REDUNDANCY At least one DC PEM must be installed in the 7750 SR 12 chassis to operate An additional PEM can be installed for power redundancy If you need to convert AC power to usable DC power up to two rectifiers can be installed in the same AC power shelf and connected to a DC PEM For redundant operation a second AC power shelf can be installed This power shelf must connect to the second PEM Thi...

Page 29: ...vent contact with hazardous voltages and currents and to prevent accidental removal Power cables are not included You must provide power cables compliant with your local safety codes For information about preparing cables refer to DC Input Power Wiring on page 69 There are no field replaceable parts on a DC PEM The entire unit must be replaced in the event of a failure Figure 4 SR 12 DC Power Entr...

Page 30: ...upporting an equal percentage of the load When a rectifier is removed the remaining rectifiers adjust to fulfill the power requirements and maintain uninterrupted system power The rectifiers in the AC power shelf are hot swappable You can remove or replace a power module while the system is operating without affecting system operation For maximum redundancy each AC input power module should be con...

Page 31: ...m initialization is complete The fans gradually increase to full speed when the operating temperature rises above 122 F 50 C The 7750 SR 12 cooling system consists of the following components Up to 3 trays with two impellers a minimum of 2 trays is required One air filter The cooling system components work together to keep the internal components within the acceptable temperature range The status ...

Page 32: ...s dust accumulation and to help control airflow and electromagnetic interference and for safety reasons Blanks do not have board components or connector pins CABLE MANAGEMENT SYSTEM The 7750 SR 12 chassis can accommodate 2 optional cable management trays The trays are mounted on the front of the chassis above and below the card slots The cable management system manages the fiber optic cables so th...

Page 33: ...r trays are recommended for normal operation but can operate with two trays until a replacement is installed as long as the chassis is located in a temperature controlled area Table 7 7750 SR 12 Hardware Component Operating Requirements Summary Component Minimum Maximum Field Replaceable Backplane factory installed 1 1 N DC PEMs 1 2 Y DC power cables1 1 per PEM 1 per PEM Y AC power shelf 2 1 2 Y A...

Page 34: ... mount the chassis Step 4 If converting AC power install the AC power shelf or shelves and AC power rectifiers Step 5 Make power connections Step 6 Optional You can either turn on the power now or after you install the SF CPM IOMs and MDAs Step 7 Install the SF CPM s Step 8 Establish console Telnet connections Step 9 Preconfigure card slot IOM MDA and port information Step 10 Install at least one ...

Page 35: ...g topics Warnings and Notes on page 34 System Specifications on page 35 Chassis Specifications on page 35 Environmental Specifications on page 35 Power Module Specifications on page 36 MDA Specifications on page 37 Component Power Consumption on page 38 Component Specifications on page 39 Storage on page 43 Safety Considerations on page 42 Power on page 42 Fans on page 43 Storage on page 43 ...

Page 36: ...a hand cart to lift or move the router Always install the heaviest equipment on the bottom of the rack to keep the center of gravity of the equipment rack as low as possible To provide necessary stability ensure that the equipment rack is bolted to the floor Ceiling brackets are useful to provide additional stability The equipment rack must be properly grounded Install components after the chassis...

Page 37: ...ght loaded 300 lbs 136 kg approx Mounting Mount in 19 inch equipment rack Bracket ears are factory installed to front mount the chassis in a 19 inch rack Table 9 Environmental Specifications Parameter Description Operating Temperature 32 to 122 degrees ºF 0 to 50ºC Maximum altitude 10 000 ft 3 048 m Relative humidity 5 to 90 non condensing Heat dissipation worst case configuration 3000 watts joule...

Page 38: ...bs 4 3 kg AC power shelf weight 9 lbs 4 08 kg DC PEM Max quantity per chassis 2 PEM dimensions 2 H x 16 7 W x 7 75 D Weight 10 lbs Table 11 Electrical Characteristics Power Supply Type Electrical Characteristics Value Using 3 Tyco NP1200 AC power rectifiers AC Input 100 120V 200 240V 50 60Hz 15A 12A 7 4A DC Output 48 56V Using 2 Tyco NP2500 AC power rectifiers AC Input 170 264V 14A 208V 13A 240V D...

Page 39: ...Site Preparation 7750 SR 12 Page 37 MDA SPECIFICATIONS Table 12 MDA Specifications Parameter Description Dimensions 0 5 H x 6 75 W x 7 D Weight 1 lb ...

Page 40: ...PTION Table 13 Power Consumption Component Conservative Estimate Approx 20 margin Watts Chassis low RPMs 38 Chassis high RPMs 154 SF CPM 144 IOM 120 MDAs M1 10GB 23 M10 1GB SFP 31 M60 10 100ETH TX 20 M20 100ETH SFP 37 OC 12 STM 4 40 OC 48 STM 16 24 OC 192 STM 64 23 ...

Page 41: ... 14 Component Specifications Parameter Description SF CPM Dimensions 1 4 H x 16 75 W x 17 D Weight 10 lbs IOM Dimensions 1 4 H x 16 75 W x 17 D Weight 9 lbs MDA Dimensions 1 4 H x 7 5 W x 7 D Weight l 5 lb Impeller tray Dimensions 17 5 H x 5 5 W x 7 5 D Weight 12 lbs ...

Page 42: ...r center mounted in many types of racks including the following Standard 19 inch 48 26 cm equipment rack Standard telco rack four post The equipment rack rail mounting holes must align with the mounting holes on the chassis mounting brackets The 7750 SR 12 mounting brackets are factory installed for a front mount in a 19 inch rack Required tools 2 Phillips screwdriver Flathead screwdriver Anti sta...

Page 43: ...the rack for maintenance access and to allow space to remove and install SF CPM IOMs MDAs and air filter in the front and allow space to remove and install the cooling trays and DC PEMs in the rear Figure 6 Chassis Clearance Requirements FRONT REAR 20 REAR REQUIRED FOR MAINTENANCE 20 FRONT REQUIRED FOR MAINTENANCE ...

Page 44: ...perform wiring and cabling to the system All power to the equipment rack or cabinet should be disconnected before the installation The power cable s must meet your local electric code requirements The circuit breaker is not intended to be used as the chassis ON OFF switch Unplug the power cord from the power source and disconnect the cord from the receptacle on the power supply module to remove po...

Page 45: ... and electromagnetic interference 33 AIR FILTER The air filter tray must always be installed while the 7750 SR 12 is powered up The air filter is factory installed Filters should be inspected monthly and cleaned and replaced every twelve months or as required The filter is field replaceable STORAGE To store unused components and extra field replaceable parts re wrap the components in the original ...

Page 46: ...60950 1 03 ANSI UL 60950 1 2002 IEC 60950 1999 3rd edition EN 60825 1 Safety of laser products CB test certificate EMC EN300 386 V1 3 1 2001 For equipment operating in telecommunications centers VCCI Class A FCC Part 15 Class A EN55022 Class A EN55024 1998 For information technology equipment ICES 003 Class A CE Declaration Certifications in progress NEBS compliant Environmental in progress ETS 30...

Page 47: ...nformation on the following topics Unpacking the Chassis on page 46 Unpacking Precautions on page 46 Rack Mounting the Chassis on page 51 Installing the Cable Management System on page 54 Making the Chassis Ground Connection on page 56 Preparing the Ground Wire on page 56 Making the Ground Wire Connection on page 58 Installing Impeller Trays on page 60 ...

Page 48: ...e equipment rack Notes The 7750 SR 12 is shipped in a wooden crate and is strapped to a pallet with casters that is used to wheel the router out of the crate and rolled to the equipment rack location Router components such as SF CPMs IOMs MDAs and spares are shipped separately The 7750 SR 12 chassis is packaged and protected by a foam cap and base Do not discard the packaging container and materia...

Page 49: ...Installing the 7750 SR 12 7750 SR 12 Page 47 Figure 7 Unfastening the Crate Clips To open the crate Step 1 Unfasten the clips on the left and right sides of the front panel See Key 1 Figure 7 SR12033 1 ...

Page 50: ...panel downward to act as a ramp See Key 2 in Figure 8 Step 2 Loosen and remove the wing nuts and washers on the board anchoring the chassis Remove the board See Key 3 in Figure 8 Step 3 Take out any removable packing material Step 4 Remove the accessory kit taped to the inside of the crate See Key 4 in Figure 8 2 4 3 SR12034 ...

Page 51: ... pallet that has attached wheels Carefully roll the chassis and pallet down the ramp and maneuver as close to the equipment rack as possible See Key 5 in Figure 9 Step 2 A strap secures the chassis to the pallet Loosen and remove the strap to remove the chassis from the pallet See Key 6 in Figure 9 Step 3 Remove the anti static bag from the chassis 6 5 SR12035 ...

Page 52: ...o handles or hand grips on the 7750 SR 12 With at least two people lift the chassis from the bottom see Key 7 in Figure 10 Do not put your hands inside the chassis frame to lift Step 2 Proceed to Rack Mounting the Chassis on page 51 for instructions to rack mount the chassis SR12037 7 7 7 7 ...

Page 53: ... anchored and grounded Refer to the rack manufacturer s documentation for instructions Any power to the rack is OFF Danger Only trained and qualified personnel should install or replace this chassis and chassis components Caution There are no handles or hand grips on the 7750 SR 12 Lift the router from underneath Do not lift the router by the internal chassis frame When rack mounting the 7750 SR 1...

Page 54: ...assis Page 52 7750 SR 12 Figure 11 Installing the Chassis into an Equipment Rack 3 2 1 SR12005A Table 17 Rack Mounting the 7750 SR 12 Chassis Key Description 1 Equipment rack 2 Rack mounting screws 3 Rack mounting bracket ...

Page 55: ...ion the chassis in front of the rack Step 2 With one person in front of the rack and one behind the rack lift the 7750 SR 12 from the bottom and position it in the rack Step 3 Optional Slide the chassis on top of the shelf bar Step 4 Align the mounting holes on each bracket to the rack rail Insert a screw into each hole in the mounting bracket and tighten Do not skip any holes ...

Page 56: ...elow the card cage Figure 12 If the chassis rack mounting brackets are removed and relocated to accommodate a mid mount chassis installation then a shim must be placed between each cable management tray mounting brackets and the chassis wall Shims fill the gaps between the chassis wall and the cable management tray brackets that would otherwise be occupied by the rack mounting bracket which were r...

Page 57: ... the top tray orient the tray above the card slots so the access door flips upward to access the pegs Align the bracket holes with the mounting holes on each side of the chassis See Key 1 of Figure 12 Step 4 Insert a screw into each of the mounting holes on each side of the bracket and tighten See Keys 2 and 4 of Figure 12 Step 5 To install the bottom tray orient the tray below the card slots so t...

Page 58: ...depends on the location of the router and proximity to the proper grounding facilities Two grounding screws are located on the rear side of the chassis on the top left hand side PREPARING THE GROUND WIRE Use 6 AWG for the ground wire connection Figure 13 Preparing the Ground Wire Danger Only trained and qualified personnel should install or replace this chassis and chassis components Note When wir...

Page 59: ...round wire Step 1 Using a wire stripping tool strip each the insulation from the wire to 7 16 inches Step 2 Slide the open end of the ground lug accessory box over the exposed area of the prepared wire Step 3 Using a crimping tool crimp the ground lug to the wire ...

Page 60: ...s on the top left hand side Figure 14 Connecting the Grounding Lug 4 3 2 5 1 SR12031A Table 19 Ground Wire Descriptions Key Description 1 Grounding studs 2 Lug Panduit LCC F6 14A 3 Washer Use two washers sized to accommodate the 1 4 studs 4 Nuts Use two nuts sized to accommodate the 1 4 studs 5 Ground cable end prepared according to local safety codes ...

Page 61: ... the top left hand side Step 2 Using the prepared ground wire place the ground lug through the two chassis ground screws Step 3 Install locking washers and nuts Torque the nuts to 56 pound inches Step 4 Connect the opposite end of the grounding cable to the appropriate grounding point at your site to ensure adequate chassis ground according to local safety codes ...

Page 62: ...ssis operates safely while you replace the fan tray for up to approximately five minutes at an ambient temperature of 95 F 35 C If a longer maintenance time is required power off the system to prevent overtemperature conditions Immediately replace a tray as soon as an impeller failure is detected In the event of a single impeller failure the entire tray must be replaced To remove and replace the t...

Page 63: ...Installing the 7750 SR 12 7750 SR 12 Page 61 Figure 15 Installing Impeller Trays 1 2 SR12025A Table 20 Impeller Tray Descriptions Key Description 1 Impeller tray 2 Captive screws ...

Page 64: ...2 Install the first impeller tray in the right most slot Gripping the handle orient the tray so the connector is on the top right rear side Slide the connector end into the slot until it is fully seated Tighten the captive screws Step 3 Install second impeller tray in the middle slot Step 4 Install third impeller tray in the left most slot ...

Page 65: ...C power shelves to DC PEMs are also provided This chapter provides information on the following topics General Power Warnings and Notes on page 64 DC on page 65 Installing DC PEMs on page 65 Preparing the Power Cable on page 69 DC Input Terminal Block Wiring on page 71 AC on page 74 Installing an AC Power Shelf on page 76 Installing the AC Power Rectifiers on page 77 Connecting The AC Power Shelf ...

Page 66: ...s to prevent excess dust accumulation and to help control airflow and electromagnetic interference Faceplate blanks do not have board components or connector pins Electrostatic discharge ESD damage can occur if components are mishandled Always wear an ESD preventive wrist or ankle strap and always connect an ESD strap to the grounding plug on the front of the chassis Notes The 7750 SR 12 is shippe...

Page 67: ...ing installation The power source should be a safety extra low voltage SELV source The 7750 SR 12 router with DC power entry modules should be installed only in restricted access areas such as dedicated equipment rooms and electrical closets in accordance with Articles 110 26 and 110 27 of the most recent National Electrical Code ANSI NFPA 70 Before connecting or disconnecting ground or power wire...

Page 68: ...ear of the chassis see 7750 SR 12 Chassis Rear View on page 17 The slots are not labelled but for documentation purposes the top slot is referred to as slot 1 and the bottom slot is referred to as slot 2 For full redundancy two PEMs must be installed and each PEM must be attached to an independent power source with a dedicated circuit breaker One 48 DC 100A maximum branch circuit is required for e...

Page 69: ...pplies 7750 SR 12 Page 67 INSTALLING A DC PEM Figure 16 Installing a DC PEM 2 3 1 SR12012A Table 21 Installing a DC PEM Key Description 1 Power cable VDC 2 Return cable RTN 3 Power studs 4 Safety cover 5 I O On Off switch ...

Page 70: ... slot Align the PEM with the slot guides Slide the unit into the slot until the connectors are seated with the receptacle in the rear of the slot Step 6 Secure into place by tightening the captive screws Step 7 If you plan to use DC power to operate the 7750 SR 12 proceed to the following steps to connect the power cord s If you plan to install AC power rectifiers to operate the 7750 SR 12 proceed...

Page 71: ...DC Terminal Block Stud Dimensions and Spacing Figure 18 DC Terminal Block Lug Warning Ensure that all power is OFF from the DC circuit Locate the circuit breaker on the panel board that services the DC circuit Switch the circuit breaker to the OFF position When wiring the unit the ground connection must always be made first and disconnected last The proper wiring sequence is ground negative to gro...

Page 72: ...tool strip the insulation from the wire to 7 16 inches Step 2 Locate the lug in the accessory box Slide the open end of the lug over the exposed area of the prepared wire Step 3 Using a crimping tool crimp the lug to the wire 1 2 SR10030 Table 22 DC Power Cable Key Description 1 Copper wire 2 Insulation stripped 7 16 inch ...

Page 73: ... power supply cables attach to the power supply terminal studs Figure 20 Figure 21 and Figure 22 display DC input terminal block safety cover and wiring views Figure 20 Removing the DC Terminal Block Safety Cover Figure 21 Wiring the DC Input Power Terminal Block SR12016 1 2 SR12017 ...

Page 74: ...move from the studs Step 3 Using the prepared DC power cable s connect the RTN positive return cable to the RTN terminal according to local safety codes Step 4 Replace the nuts and tighten with a torque wrench to 56 pound inches Step 5 Connect the VDC cable to the top 48V terminal according to local safety codes Step 6 Replace the nuts and tighten with a torque wrench to 56 pound inches Step 7 Rep...

Page 75: ...Installing Power Supplies 7750 SR 12 Page 73 Figure 23 Installed DC Power Entry Modules VDC RTN VDC RTN OFF O ON I OFF O ON I Table 23 DC Input Terminal Block Descriptions Key Description 1 VDC 2 RTN ...

Page 76: ...anel outlet etc must be easily accessible Each DC input PEM requires a dedicated 100A maximum service or according to your local electric code requirements AC power shelves and rectifiers can be ordered through Alcatel Use cables supplied with the rectifiers If cables are misplaced or lost within the United States use 6 AWG high strand count copper wire If the 7750 SR 12 router is located outside ...

Page 77: ...om 150 to 264 VAC The number of AC power shelves and rectifiers depend on your configuration of IOMs and MDAs as the cumulative power requirements can vary Appropriate cables are shipped with each 7750 SR 12 router configuration Make sure all cables conform to local safety codes Each AC power shelf is connected directly to a DC PEM Status is supplied through a DB 25 connection from an AC power she...

Page 78: ...nted in a standard 19 inch equipment rack or telco type rack Install the AC power shelf directly below your 7750 SR 12 or in an adjacent rack and make sure you are able to connect the power cables to the router AC input power DC output power and status are provided with cable connections from the rear of the power shelf Individual power cables connect each AC power rectifier to the AC input power ...

Page 79: ...other two rectifiers power share the full load and maintain continuous system operation CONNECTING THE AC POWER SHELF CABLES TO THE DC PEMS Caution A single AC power rectifier weighs approximately 9 5 lbs 4 3 kg Use both hands when installing a rectifier Notes Follow the manufacturer s instructions to install AC power rectifiers Warning Make sure that power is removed from the AC circuit power sou...

Page 80: ... 78 7750 SR 12 Figure 24 Connecting the Cables 5 1 5 2 2 4 3 3 1 4 SR12010A Table 24 AC Power Shelf to DC PEM Cabling Features Key Description 1 AC power shelf 2 DC PEM 3 AC power source 4 VDC cable typically black 5 RTN cable typically red ...

Page 81: ...wrench to 56 pound inches Step 6 Connect the VDC cable to the top 48V terminal according to local safety codes Step 7 Replace the nuts and tighten with a torque wrench to 56 pound inches Step 8 Replace the safety cover Figure 22 Figure 25 DC Terminal Block Step 9 Plug the other end of the AC input power cables into the AC power source Step 10 Check the LEDs on each rectifier Step 11 Flip the power...

Page 82: ... and over temperature conditions to the active CPM and lights the corresponding power supply LEDs on the CPM faceplate The following are the optically isolated open collector signals Fault The unit has detected an internal fault Overtemperature Warning OTW The unit is overheating Shutdown is imminent 8 second warning Power Fail Warning The output of the power unit will fail within five millisecond...

Page 83: ...ctifiers are installed Step 1 On AC power shelf 1 connect the 12 pin connector of the Y cable into the J10 port and the 14 pin connector into the J11 port Step 2 Connect the other end of the cable into the DB25 port on the DC PEM Step 3 Follow the same procedure for AC power shelf 2 if applicable ...

Page 84: ...Monitoring AC Power Page 82 7750 SR 12 ...

Page 85: ... information This chapter provides information on the following topics Installing SF CPM Modules on page 84 Initializing the System on page 88 Using the Compact Flash Slot 3 Locking Mechanism on page 89 Initial System Startup on page 90 Troubleshooting on page 90 Establishing Router Connections on page 93 Console Connection on page 93 Telnet Connection on page 95 ...

Page 86: ...d faceplates are required in all empty card and component slots to prevent excess dust accumulation and to help control airflow and electromagnetic interference Faceplate blanks do not have board components or connector pins Notes General SF CPM modules do not require preconfiguration The 7750 SR 12 router requires at least one SF CPM Install the SF CPM before installing any IOMs Do not force an I...

Page 87: ... becomes the active CPM regardless of the slot it is installed in When the active CPM is removed for replacement or fails the standby becomes the active CPM If two CPMs are inserted simultaneously or almost simultaneously and are booting at the same time then preference is given to the CPM installed in Slot A NOTE Each SF CPM module has two ejector levers which seats and releases the card from the...

Page 88: ...Modules Page 86 7750 SR 12 Figure 27 Installing the SF CPM Module 2 1 SR12027A Table 25 Installing SF CPM Features Key Description 1 Slot guide 2 SF CPM positioned in the slot guide 3 SF CPM captive screw 4 Ejector lever ...

Page 89: ...e connectors Step 4 Simultaneously rotate the ejector levers outward to lock the backplane connectors and SF CPM in place If an SF CPM ejector lever does not shift to the locked position the card is probably not seated properly in the backplane Pull the card out halfway and then reinsert it Shift the levers to the locked position Step 5 Secure the card in place by tightening the captive screws Ste...

Page 90: ...the active CPM Notes The SF CPM modules contain three slots for removable compact flash cards The drives are named Compact Flash Slot 1 cf1 Compact Flash Slot 2 cf2 and Compact Flash Slot 3 cf3 Configurations and executable images can be stored on flash cards or an FTP file location The flash card containing the bootstrap and boot option files must be installed in Compact Flash Slot 3 cf3 on the S...

Page 91: ...ompact Flash Slot 3 on the SF CPM Front Panel To secure a compact flash card into slot 3 in the active CPM follow these steps Step 1 Loosen the compact flash slot locking screw Step 2 Lift the slot cover Step 3 Align the compact flash card with the slot guides Insert the card until it is completely seated in the slot Do not force the card into the slot Step 4 Lower the slot cover and tighten the l...

Page 92: ...s To preconfigure IOMs and MDAs see Configuring Chassis Slot and IOM Parameters on page 100 TROUBLESHOOTING If the system cannot load or cannot find the boot ldr file on cf3 the system checks for a manual boot sequence interruption Unless an unsuccessful system initialization is manually interrupted the system will continuously reboot in an attempt to successfully find and load the boot ldr file L...

Page 93: ... 0x7ff00000 to 0x80000000 Testing SDRAM from 0x02200000 to 0x7ff00000 Testing Compact Flash 1 Slot Empty Testing Compact Flash 2 Slot Empty Testing Compact Flash 3 Slot Empty Peripheral FPGA version is 0x13 Board Serial Number is rus4 07 Chassis Serial Number is 0103010009 Searching for boot ldr on local drives No disk in cf3 No disk in cf3 No disk in cf3 Error file boot ldr not found on any drive...

Page 94: ... compact flash are bof cfg Boot option file boot ldr Bootstrap image config cfg Default configuration file TIMOS m n Yz m Major release number n minor release number Y A Alpha release B Beta release M Maintenance release R Released software z Version number cpm tim CPM image file iom tim IOM image file ROOT bof cfg boot ldr config cfg TIMOS n m Yz cpm tim iom tim ...

Page 95: ...sole connection you will need the following An ASCII terminal or a PC running terminal emulation software set to the parameters shown in the table below A standard serial cable with a female DB9 connector For pinout information refer to Appendix C Pinout Assignments on page 149 Table 26 Console Configuration Parameter Values Parameter Value Baud Rate 115 200 Data Bits 8 Parity None Stop Bits 1 Flo...

Page 96: ...e terminal to the Console port on the SF CPM Figure 30 using the serial cable Step 2 Power on the terminal Step 3 Establish the connection by pressing the Enter key a few times on your terminal keyboard Step 4 At the router prompt enter the login and password The default login is admin The default password is admin SR40028 Console Port ...

Page 97: ...ave a device with Telnet software located on the same network The SR 12 must have a management IP address The IP address is manually configured For information about configuring router parameters refer to the IP Router Configuration Overview chapter For pinout information refer to Appendix C Pinout Assignments on page 149 MAC addresses are listed on a small label on the chassis IOM and MDA The MAC...

Page 98: ...s are configured the CLI command line can be accessed with a Telnet connection To establish a Telnet connection run a Telnet program and issue the Telnet command followed by the IP address The following displays an example of a Telnet login C telnet 192 168 1 111 Login admin Password SR12 ...

Page 99: ...ly pop out of the slot Step 5 Remove the card and place it in an anti static bag The flash card containing the boot and configuration files must be installed in Compact Flash Slot 3 cf3 on the SF CPM card Step 6 Lower the slot cover and tighten the locking screw To eject the slot 1 or slot 2 flash cards Step 1 The shutdown command MUST be issued prior to removing a flash card Command Example file ...

Page 100: ...Establishing Router Connections Page 98 7750 SR 12 ...

Page 101: ...bout installing IOMs and MDAs This chapter provides information on the following topics Configuring Chassis Slot IOM and MDA Parameters on page 100 Installing IOMs on page 103 Installing MDAs on page 106 Installing an MDA on an IOM on page 107 Installing an MDA on a Chassis Installed IOM on page 109 ...

Page 102: ... Each specific slot must specify an IOM MDA slot and MDA type Ports cannot be configured until the MDA is configured Preprovision components in the following order 1 Chassis slot number 2 Card type 3 MDA slot number 4 MDA type 5 Ports CONFIGURING CHASSIS SLOT AND IOM PARAMETERS In the config context use the following CLI commands and syntax examples to provision the chassis slot and IOM Command Ex...

Page 103: ... Step 1 mda mda number mda 1 Step 2 mda type mda type mda type m60 10 100eth tx Step 3 exit exit To provision an additional MDA continue the configuration process with Step 5 Step 4 mda mda number mda 2 Step 5 mda type mda type mda type m10 1gb sfp Step 6 exit exit EXAMPLE The following example displays card slot card type MDA slot and MDA type command usage SR12 config card 1 SR12 config card car...

Page 104: ... MDA Parameters Page 102 7750 SR 12 The following example displays the configuration SR12 config info echo Card Configuration card 1 card type iom 20g mda 1 mda type m10 1gb sfp exit mda 2 mda type m20 100eth sfp exit exit SR12 config ...

Page 105: ...c surface Blank panels and faceplates are required in all empty card and component slots to prevent excess dust accumulation and to help control airflow and electromagnetic interference Faceplate blanks do not have board components or connector pins Notes General Card MDA and port information can be configured prior to the component installation IOMs do not have LEDs Do not force an IOM into a SF ...

Page 106: ...into the chassis with or without attached MDAs Refer to the instruction described in Installing MDAs on page 106 Install IOMs in chassis slots 1 through 10 NOTE The ejector levers must be positioned inward during the card installation Figure 32 Installing an IOM 2 1 SR12020A ...

Page 107: ...rd The ejector levers must be in this position to release the locking mechanism Step 4 Align the IOM in the slot guide and slide the IOM inward until the connectors are seated with the backplane Step 5 Rotate the ejector levers outward to lock the IOM in place If an IOM lever does not shift to the locked position the IOM is not properly seated Rotate the levers inward and pull the IOM out halfway ...

Page 108: ... SR 12 router until all components are installed and verified Use only approved small form factor pluggable fiber optic devices in MDA ports The MDA installation guides list the types of SFP modules and connectors used with specific MDAs Notes General Ports cannot be provisioned if the MDA is not preprovisioned Services cannot be provisioned if ports are not provisioned MDAs can be installed on an...

Page 109: ... IOM MDAs can be installed on an IOM before installing the IOM into the chassis Figure 33 Installing an MDA on an IOM 2 1 3 4 SR40021A 5 6 Table 27 MDA Installation Features Key Description 1 MDA 2 Captive screw 3 MDA handle 4 Connectors 5 Threaded receptacle 6 Slot guides ...

Page 110: ...r pins Step 2 Insert the MDA into MDA slot Align the MDA with the slot guides and the captive screw with the threaded receptacle Step 3 Press the MDA firmly into the slot Make sure that the connectors are fully seated in the IOM receptacle Step 4 Tighten the captive screws to seat the MDA Do not over tighten Step 5 If the system is powered up check the Power LED on the MDA faceplate Step 6 Attach ...

Page 111: ...ackaging Avoid touching board components and connector pins Step 2 Insert the MDA into an MDA slot on the IOM Align the MDA with the slot guides and the captive screw with the threaded receptacle Step 3 Press the MDA firmly into the slot Make sure that the connectors are fully seated in the IOM receptacle Step 4 Tighten the captive screws to seat the MDA Do not over tighten Step 5 Check the Power ...

Page 112: ...ust accumulation and to help control airflow and electromagnetic interference Faceplate blanks do not have board components or connector pins Only remove a blank panel when you are ready to install an IOM Figure 35 Removing Blank Panels To remove a blank panel Step 1 Loosen the captive screws Step 2 Remove panel Retain the panel for future use 2 1 SR12023A ...

Page 113: ...IN THIS CHAPTER This section describes the 7750 SR 12 power supply and SF CPM LEDs MDA LEDs are described in the MDA documentation The following LED descriptions are included AC Power Supply Module LEDs on page 112 SF CPM LEDs on page 114 ...

Page 114: ...pply LEDs AC OK DC OK FAULT 1 2 3 SR12029 Table 28 7750 SR 12 AC Power Supply LED Descriptions Key Label Description 1 AC OK Green The unit has input AC in the correct range 2 DC OK Green The unit is powered up and the output is in regulation 3 Fault Red Internal fault The unit has detected an internal fault ...

Page 115: ...f 1 shelf connected to DC PEM A LED 4 Displays status for AC power supply shelf 2 shelf connected to DC PEM B POWER SUPPLY LEDS Table 29 Model SFM 400G SF CPM Field Descriptions Label Part LED Description Power Blue Power on Unlit Power off Status Green Operationally up and administratively up Amber Operationally down but administratively up Unlit Not operational shutdown or administratively down ...

Page 116: ...rt a small object such as a pen tip to depress the button When the active SF CPM is restarted the standby assumes the active role Power The Power LEDs are lit on both the active and standby CPMs Blue Power on Unlit Power off Status The Status LED is lit only on the active CPM Green Operationally up and administratively up Amber Operationally down but administratively up Unlit Not operational shutd...

Page 117: ...erence 1 The Reference LEDs are lit only on the active CPM and indicate the status and quality of the individual timing sources Green Qualified and selected as clock reference input Green blinking Qualified but set as standby clock reference Amber Not qualified Unlit Not in use not configured 2 This LED is lit only on the active CPM The standby should be unlit Green Qualified and selected as clock...

Page 118: ...Compact Flash LEDs are lit on both the active and standby CPMs Green Indicates that the flash card is operational and in a read or write process Note Do not remove the flash card when the LED is lit green Amber solid Error condition exists Amber blinking Indicates that the slot is in an operationally down mode This is the only mode to safely remove the flash card Unlit A flash card is not installe...

Page 119: ...ect a terminal to the console port Default 115 200 baud 8 bit no parity 7 AUX The UART Auxiliary diagnostic port is provisioned as a DB 9 serial auxiliary port and is used for modem connection 8 Alarm The Alarm port is provisioned as a DB 9 serial port and is used to connect to external alarm devices that report conditions that trigger red or amber alarms 9 ACO LT The Audible Alarm Cutoff Lamp Tes...

Page 120: ... download the boot and configuration images See the Compact Flash LED description for the status of a compact flash slot The ejector button for Compact Flash Slot 3 is slightly recessed Insert a small object such as a pen tip to depress the button Compact flash slot locking mechanism When engaged the locking mechanism prevents the accidental jostling or removal of the flash card inserted in Compac...

Page 121: ...on about field replaceable units FRUs in the 7750 SR 12 chassis Topics in this chapter include Air Filter Tray on page 120 SF CPMs on page 123 IOMs on page 127 MDAs on page 133 Power Modules on page 137 Removing a DC PEM on page 139 AC Power Shelves and Rectifiers on page 143 Impeller Trays on page 145 ...

Page 122: ...TRAY REMOVING THE AIR FILTER TRAY Figure 39 Removing the Air Filter Tray Notes The air filter tray is accessible from the front of the chassis The air filter should be inspected and cleaned at least monthly and replaced every 12 months 2 1 SR12009A ...

Page 123: ... 2 In the lower front of the chassis below the lower cable management tray use a flathead screwdriver to loosen the captive screws on the filter vent faceplate Figure 39 Step 3 Remove the filter vent faceplate Step 4 Release the filter tray from the internal brackets and pull the tray out of the chassis Table 31 Filter Tray Features Key Description 1 Captive screws 2 Filter vent faceplate ...

Page 124: ...gure 40 Replacing the Air Filter Tray To replace the filter tray Step 1 Align the tray with the into the internal brackets Step 2 Slide the tray into the slot Step 3 Replace the filter vent faceplate Use a flathead screwdriver to tighten the captive screws 2 1 SR12008A ...

Page 125: ... and to help control airflow and electromagnetic interference Notes General When replacing SF CPM modules configuration modifications are not required All 7750 routers require at least one SF CPM Do not force an IOM into a SF CPM slot Do not force a SF CPM into an IOM slot When you remove a SF CPM always use the ejector levers to make sure that the connector pins disconnect from the backplane Remo...

Page 126: ...t flash LEDs displayed on the SF CPM must be either unlit or blinking amber before ejecting the flash card Step 2 Disconnect the cable connections to the SF CPM Step 3 Loosen the SF CPM captive screws Step 4 Simultaneously rotate the ejector levers inward to unlock the panel Step 5 Pull the card out of the slot Place on an anti static surface or in an anti static bag 2 1 SR12028A ...

Page 127: ... the chassis Figure 42 Replacing the SF CPM Module To install a SF CPM Step 1 Remove the SF CPM module from the packaging Do not touch the printed circuit board or connector pins Step 2 The SF CPM must be installed in the center chassis slots labelled A or B Holding the SF CPM by the edges align the card with center slot guide A or B Slide the card inward until the connectors are seated in the bac...

Page 128: ...rd is probably not seated properly in the backplane Pull the card out halfway and then reinsert it Shift the levers to the locked position Step 4 Secure the card in place by tightening the captive screws The ejector levers must remain in the locked position while the card is installed in the chassis ...

Page 129: ...and component slots to prevent excess dust accumulation and to help control airflow and electromagnetic interference Notes General When replacing IOM modules MDAs the card and port configurations must be shut down All 7750 routers require at least one IOM and one MDA When you remove an IOM always use the ejector levers to make sure that the connector pins disconnect from the backplane Removing an ...

Page 130: ...config context Command Example Shut down ports Step 1 port port id port 1 1 1 Step 2 shutdown shutdown Step 3 port port id port 1 1 2 Step 4 shutdown shutdown Step 5 port port id port 1 1 3 etc Step 6 shutdown shutdown Shut down the card Step 7 card slot number card 1 Step 8 shutdown shutdown Shut down the MDA s Step 9 mda slot number mda 1 Step 10 shutdown shutdown Step 11 mda slot number mda 2 S...

Page 131: ...ample shows the command syntax to remove the port MDA and IOM configurations Command Example Shut down ports Step 1 port port id port 1 1 1 Step 2 shutdown shutdown Step 3 port port id port 1 1 2 Step 4 shutdown shutdown Step 5 port port id port 1 1 3 etc Step 6 shutdown shutdown Shut down card Step 7 card slot number card 1 Step 8 shutdown shutdown Shut down MDA s Step 9 mda slot number mda 1 Ste...

Page 132: ...type card type iom 20g Step 3 no shutdown no shutdown Configure MDA slot and type Step 4 mda slot number mda 1 Step 5 mda mda type mda type m1 10gb lw r sm Step 6 no shutdown no shutdown Step 7 mda slot number mda 2 Step 8 mda mda type mda type m60 10 100eth tx Step 9 no shutdown no shutdown Configure port Step 10 port port id port 1 1 1 Step 11 no shutdown no shutdown Continue port configurations...

Page 133: ...s first see Removing an MDA on page 135 Then loosen the IOM captive screws and rotate the ejector levers simultaneously inward to disengage the backplane connections Slide the IOM out of the slot Step 3 If you are not replacing the IOM install a blank panel in the empty slot use a flathead screwdriver to tighten the 2 captive screws If you are replacing the IOM proceed to the next section Replacin...

Page 134: ...o release the locking mechanism Step 3 Align the IOM with the slot guide and slide the IOM inward until the connectors are seated with the backplane Step 4 Rotate the ejector levers outward to lock the IOM in place If an IOM lever does not shift to the locked position the IOM is not properly seated Rotate the levers inward and pull the IOM out halfway and then try to reinsert it Try again to shift...

Page 135: ...able is connected Avoid exposure and do not stare into open apertures Always place components on an anti static surface Do not power up a 7750 SR 12 router until all components are installed and verified Use only approved small form factor pluggable fiber optic devices in MDA ports Notes General Ports cannot be provisioned if the MDA is not preprovisioned Services cannot be provisioned if ports ar...

Page 136: ...ation Command Example Shut every port on the MDA Step 1 port port id port 1 1 1 Step 2 shutdown shutdown Step 3 port port id port 1 1 2 Step 4 shutdown shutdown Step 5 port port id port 1 1 3 etc Step 6 shutdown shutdown Shut down card and MDA Step 7 card slot number card 1 Step 8 mda mda slot mda 1 Step 9 shutdown shutdown Step 10 exit exit Remove MDA and card from the configuration Step 11 no md...

Page 137: ...e MDA ports Step 2 Loosen the MDA captive screws NOTE The MDA cannot be removed if the captive screws are tightened Step 3 Grasp the captive screws and pull the MDA out of the MDA slot on the IOM Step 4 Place the MDA on an anti static surface Step 5 You must either immediately install another MDA into the slot or replace the MDA slot with blank cover ...

Page 138: ...mponents and connector pins Step 2 Insert the MDA into the MDA slot on the IOM Align the MDA with the slot guides and the captive screw with the threaded receptacle Step 3 Press the MDA firmly into the slot Make sure that the connectors are fully seated in the IOM receptacle Step 4 Tighten the captive screws to seat the MDA Do not over tighten Step 5 Check the Power LED Step 6 Attach cables to the...

Page 139: ... cables which meet local electrical code requirements Warning Do not install equipment that appears to be damaged Blank panels and faceplates are required in all empty component slots to prevent excess dust accumulation and to help control airflow and electromagnetic interference Faceplate blanks do not have board components or connector pins The 7750 SR 12 router with DC PEMs should be installed ...

Page 140: ...circuit breaker AC power rectifiers can convert AC power from an external AC power source into DC power that is suitable for the SR 12 router AC power shelves and rectifiers are available from Alcatel If AC power is used at least one AC power shelf with two rectifiers must be used In the event of a PEM AC power rectifier or AC power shelf failure the entire individual unit must be replaced There a...

Page 141: ...eration If you are operating your 7750 SR 12 with only one DC PEM the system will shut down when power to the PEM is removed Figure 46 Removing a DC PEM Danger If your 7750 SR 12 router is powered by AC power rectifiers you must remove all cable connections which attach to the DC PEM you are removing Turn off the power from the remote power source to the PEM before you remove the safety cover 2 1 ...

Page 142: ...p 3 Make sure the appropriate Power Supply LED on the SF CPM is unlit Step 4 Loosen the captive screws and remove the safety cover Step 5 Disconnect the VDC and RTN cables Step 6 Loosen the captive screws and slide the DC PEM out of the slot Figure 46 Step 7 If you do not replace the PEM immediately install a blank panel to prevent excess dust accumulation and to help control airflow and electroma...

Page 143: ...ote power source is still OFF Step 4 Slide the PEM into the slot until the connectors are seated with the receptacle in the rear of the slot Step 5 Secure into place by tightening the captive screws Step 6 Reconnect the VDC and RTN cables that are terminated with a UL listed 2 hole lug with 1 4 inch 635 cm diameter holes on 3 4 inch 1 905 cm spacing Step 7 Make sure that the VDC and RTN cables fro...

Page 144: ... place by tightening the captive screws Step 9 Through the safety cover opening flip the ON OFF switch on the PEM front panel to the ON position Step 10 Turn on the power at the appropriate remote source Step 11 Verify the appropriate Power Supply LED on the SF CPM faceplate is lit ...

Page 145: ...ifier is operating properly when the AC OK and DC OK LEDs are both lit green A rectifier must be replaced when the Fault LED is lit red Follow the manufacturer s instructions if it is necessary to remove an AC rectifier or power shelf from the rack DISCONNECTING AC POWER CABLES AC power shelf cables are connected directly to a DC PEM One set of power cables VDC and RTN from the AC power shelf conn...

Page 146: ...itch on the appropriate DC PEM front panel to the OFF position Make sure the appropriate Power Supply LED on the active SF CPM faceplate is unlit Step 3 Loosen the captive screws and remove the safety cover covering the DC terminal block on the PEM Disconnect the VDC and RTN cables Follow the manufacturer s instructions if it is necessary to remove an AC rectifier or power shelf from the rack 5 1 ...

Page 147: ...ble The 7750 SR 12 chassis will operate safely while you remove and replace the trays for up to approximately 5 minutes at an ambient temperature of 95 F 35 C Immediately replace the tray as soon as a failure is detected In the event of a single impeller failure the entire tray must be replaced To remove and replace impeller trays you must have access to the rear of the chassis You must have enoug...

Page 148: ...e on an anti static surface Step 2 Loosen the captive screws on the impeller tray faceplate Figure 49 Step 3 Grip the handle and pull the tray half way out of the chassis Step 4 Wait until the fans stop spinning about 20 seconds before removing the tray Remove the tray completely out of the slot 2 1 SR12015 Caution DO NOT put your fingers or any tool in an impeller tray if the fans are still spinn...

Page 149: ...mpeller Tray To replace the impeller tray Step 1 Grip the replacement impeller tray and slide the connector end into the slot until it is fully seated Step 2 Secure the tray into place by tightening the captive screws Figure 50 Step 3 Verify the fan status LED on the front panel of the active CPM 1 2 SR12014 ...

Page 150: ...Impeller Trays Page 148 7750 SR 12 ...

Page 151: ...n this chapter include SF CPM Port Types on page 150 Cable Pin Assignments on page 151 BITS Port RJ48C Female on page 151 Console Port DTE Mode DB9 Male on page 151 Console Port DCE Mode DB9 Male on page 152 Auxiliary Port DTE Mode Only DB9 Male on page 152 Alarm Port DB9 Female on page 153 10 100 Management Ethernet Port RJ45 Female on page 153 ...

Page 152: ...he front panel controls the serial port type as either data terminal equipment DTE or data communications equipment DCE The port is configured as DTE or DCE depending on the switch setting No crossover cables are required The Auxiliary port is a Universal Asynchronous Receiver Transmitter UART port used to connect a modem laptop or other auxiliary devices to the router It is configured as data ter...

Page 153: ...l Direction Description 1 RXRING Input Receive Ring Signal 2 RXTIP Input Receive Tip Signal 3 NC Not connected 4 TXRING Output Transmit Ring Signal 5 TXTIP Output Transmit Tip Signal 6 NC Not connected 7 NC Not connected 8 NC Not connected Table 33 Console Port DTE Mode DB9 Male Pin Signal Direction Description 1 DCD Input Data carrier detect 2 RXD Input Receive data 3 TXD Output Transmit data 4 D...

Page 154: ...detect 2 RXD Output Receive data 3 TXD Input Transmit data 4 DTR Input Data terminal ready 5 GND Signal ground 6 DSR Output Data set ready 7 RTS Input Request to send 8 CTS Output Clear to send 9 RI Input Ring indicator Table 35 Auxiliary Port DTE Mode Only DB9 Male Pin Signal Direction Description 1 NC Not connected 2 RXD Input Receive data 3 TXD Output Transmit data 4 DTR DSR Output Data termina...

Page 155: ...alarm common 5 CRIT_NORM_CLOSED Output Critical alarm normally closed 6 MIN_NORM_OPEN Output Minor alarm normally open 7 MIN_COMMON Output Minor alarm common 8 MIN_NORM_CLOSED Output Minor alarm normally closed 9 MAJ_NORM_OPEN Output Major alarm normally open Table 37 10 100 Management Ethernet Port RJ45 Female Pin Signal Direction Description 1 TX Output Differential transmit data positive 2 TX O...

Page 156: ...Cable Pin Assignments Page 154 7750 SR 12 ...

Page 157: ...eller tray removing 146 replacing 147 impeller trays installing 62 initializing the system 90 compact flash 88 installing impeller trays 146 IOMs 104 MDAs 106 rack clearance requirements 41 required tools 40 SF CPM 84 IOMs changing configuration 129 configuring 100 installing 105 modifying configuration 128 removing 131 replacing 132 shutting down 128 L LEDs AC power supply module 112 SF CPM 20 11...

Page 158: ...ements 38 power supply modules overview 26 R rack clearance 41 mounting 51 removing IOM 131 MDA 135 power supply modules 137 SF CPM 124 S safety considerations fans 43 filters 43 power 42 specifications chassis 35 environmental 35 status cable connections 80 storing components 43 system specifications 35 chassis 35 environmental 35 power 36 U unpacking 46 ...

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