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The Avici SSR Install Guide assists you in installing the Avici Stackable Switch Router (SSR) chassis hardware. To ensure a successful installation, make sure the site conforms to the requirements and specifications outlined in the Avici SSR Site Survey.
This chapter references equipment safety and electrical standards, and introduces the SSR chassis.
Compliance to Electrical and Safety Standards
The SSR system is designed to meet the following regulatory requirements for product safety:
- UL and CSA Standard for Safety of Information Technology Equipment Including Electrical Business Equipment (UL 60950, 3rd Edition and CAN/CSA C22.2 No.60950-00).
- North America-UL and CSA specifications apply to an absolute maximum input voltage of -60 Vdc, where in Battery Return (BR) and Logic Return (LR) are properly grounded to earth ground at the system ground window.
- Class 1 Laser Product, 21 CFR, Chapter 1, 1040.10
- EN60950 and EN 60825-1 and -2
- NEBS GR-63-Core, GR-1089-CORE and SR-3580 NEBS Criteria Levels (Level 3 Compliance)
- North America-FCC 47CFR Part 15 B Class A
This device complies with Part 15 B of the FCC Rules. Operation is subject to two conditions:
- this device may not cause harmful interference
- this device must accept any interference received, including interference that may cause undesired operation.
- EN 55022 Class A Emissions (Europe), EN 61000-4-2,4-3, 4-4,
and 4-6
- ETSI/EN 300-386 (Europe)
- AS/NZS 3548 Class A (Australian/New Zealand)
Compliance to Environmental Regulations
In order to comply with domestic and international regulations regarding environmental battery disposal, users must follow disposal regulations when disposing of bay controllers, route controllers, and router modules,
CAUTION (C:1-1) Bay controllers, modules, and route controllers all contain lithium battery elements.
Users must follow all environmental regulations when disposing of bay controllers, router modules, and route controllers.Antistatic Precautions
To prevent damage from static electricity follow these precautions:
- Unless you are using the appropriate antistatic protection (antistatic wrist strap or conductive mat), do not handle modules.
- When handling modules, use an antistatic wrist strap attached to the appropriate Electrostatic Discharge (ESD) ground source.
- Handle modules by the faceplate or stiffener. Do not touch electrical connections, pins, or soldered surfaces.
Figure 1-1. SSR Chassis
SSR Chassis Dimensions and Weights
Rack Requirements
The SSR must be mounted in a standard, zone 4 seismic, 19" or 23" rack, capable of holding at least 1,000 lb when bolted to the floor according to the manufacturer's recommendation.
SSR Configuration
The SSR chassis design includes a collection of single IP router modules and general-purpose dual-redundant route controller modules interconnected through a passive fabric interconnection backplane. The backplane supports multiple switching paths that enable router modules to operate independently and to communicate through IP packet switching. Packet cut-through and high-speed module-to-module interconnections significantly reduce packet forwarding delay. Multiple paths load share by random path selection on intermodule packet transfer. The SSR is currently available in single or dual configurations.
The SSR chassis design incorporates fully redundant:
- Route Controller modules
- Bay controllers
- Cooling modules
- Power supply inputs at the Breaker Interface Panel (BIP) level
- Power connections to the SSR chassis backplane (distributed power conversion on each module)
Single-Chassis Configuration
A fully-loaded SSR chassis includes:
- Two route controller modules
- Twenty router modules (red only)
- Two cooling modules
- Two bay controller modules
- One Electromagnetic Interference (EMI) cover
- Two cable management trays
Figure 1-2 shows the SSR chassis hardware configuration.
NOTE Front to back measurements include front and rear EMI covers.
Figure 1-2. SSR Measurements
Dual Chassis Configurations
The SSR chassis offers scalability without service interruptions and expands to offer a dual-chassis solution. Easily installed Y connector cables provide connectivity between chassis and allow ease of scalability.
Figure 1-3. Dual SSR Chassis Installation
Hardware Descriptions
This section describes SSR chassis hardware components. The SSR chassis supports insertion and removal of the components with the chassis power on. The SSR ships with two bay controller modules, two cooling modules, and eighteen filler modules installed.
Chassis Components
The SSR chassis houses the route controller, router, cooling, and bay controller modules. These components are all field replaceable units.
Figure 1-4 shows the installed SSR chassis hardware components (EMI covers not shown).
Figure 1-4. SSR Chassis Components
Route Controller Modules
The route controller module supports Non-Stop Routing (NSR®), a routing functionality ensuring immediate redundancy in case of route controller failure. NSR® support requires two or more route controllers in an SSR system.
The three modes of redundancy are: NSR® protection, warm protection, and no redundancy.
- NSR® protection requires at least two route controllers (primary and backup) in a system and provides hitless routing protocol fail-over and hitless software upgrades.
- Warm Protection provides a non-hitless backup route controller to the primary controller. The warm route controller continuously monitors the primary controller. If the primary fails, the warm route controller assumes the primary role and resets the modules.
- No redundancy is available when only one route controller populates a system.
- Status LEDs on each of the four NSR® LEDs indicates the state and activity of each of the route controllers.
Status LEDs on each of the four NSR® LEDs indicates the state and activity of each of the route controllers (see Figure 1-5).
Figure 1-5. Route Controller Faceplate
Pressing the lamp test button tests the operational status of all the LEDs on the route controller. LEDs on each of the seven Ethernet ports indicate the state and activity of each of the ports. Each route controller contains a power conversion card and persistent file storage.
Table 3. Ethernet Port LEDs Link Activity Green solid - operational
Amber blinking -
passing traffic
For route controller and NSR® software configuration details, refer to the IPriori CLI Reference (Vol. 1). When configuring the route controllers, keep in mind that the route controller configured with the lowest ID number will be the active or primary route controller.
Router Modules
The SSR chassis supports router modules in combinations of module speeds in a single chassis backplane. Router modules support protocols supported in the Ipriori software. Router modules interconnect to route controller modules through a 100BaseT Ethernet cable (RJ-45).
Cooling Assembly
The cooling assembly consists of two cooling modules and two bay controllers.
Cooling Modules
Each cooling module provides three fans regulated by one of two bay controllers (the second controller is passive to provide redundancy if needed). The active bay controller monitors and regulates the cooling of the SSR chassis by sending signals to the cooling modules to raise or lower the speed of the fans as needed.
Bay Controller Modules
SSR bay controller modules, operating under the direction of a server, monitor the system power and cooling modules. Two bay controller modules in the SSR offer redundant control to maintain SSR operation.
The bay controller module:
- Monitors and controls the cooling modules
- Monitors the -48 Vdc shelf power supplies
- Provides a low-speed communication channel to/from each installed module for module bring-up
- Provides an interface to the server
- Controls LED alarm indicators
- Provides control circuits for central office visual and audible alarm indicators
Breaker Switches
SSR breaker switches, located on the front of the SSR chassis, allow the control power to the modules.
Mounting Ears
Two sets of movable mounting ears allow front, mid, or rear mounting of the SSR chassis in a standard rack. The 482 mm (19 in.) mounting ears ship installed on the SSR chassis and the 584 mm (23 in.) mounting ears ship inside the shipping crate.
For details about rack mounting, see "Rack Mounting the SSR".
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Copyright © 2005
Avici Systems Inc.
Avici® and TSR®
is a registered trademark of Avici Systems Inc.
IPriori™, Composite Links™, SSR™, QSR, and NSR® are
trademarks of Avici Systems Inc.
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Last Updated: 04/04/05 at 16:10:08