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The Terabit Switch Router Install Guide assists you in installing the Terabit Switch Router (TSR®) system hardware. To ensure a successful installation, make sure the site conforms to the requirements and specifications provided in the Terabit Switch Router Site Preparation Guide.
This chapter references equipment safety and electrical standards, and introduces you to the TSR system hardware.
Safety Information
To avoid personal injury and damage to equipment, be sure to adhere to all caution and warning statements for this product and any electrical and safety requirements specific to your site.
Compliance to Electrical and Safety Standards
The TSR system meets the following regulatory requirements for product safety:
- UL and CSA Standard for Safety of Information Technology Equipment Including Electrical Business Equipment (UL 1950, 3rd Edition and CAN/CSA C22.2 No.950-95).
- Class 1 Laser Product, 21 CFR, Chapter 1, 1040.10
- North America-UL and CSA specifications apply to an absolute maximum input voltage of -60 Vdc, wherein Battery Return (BR) and Logic Return (LR) are properly grounded to earth ground at the system ground window.
The TSR system meets the following regulatory requirements for electromagnetic interference testing:
- North America-FCC 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.
- Europe-EMC: EN 55022, EN 50082, Safety: EN 60825-1.
Antistatic Precautions
To prevent damage from static electricity follow these precautions:
- When handling circuit boards, ensure you are using the appropriate antistatic protection (antistatic wrist strap or conductive mat).
- When handling circuit boards, ensure you are using an antistatic wrist strap, attach the electrostatic discharge (ESD) to the appropriate ground source.
- Handle circuit boards by the faceplate or stiffener. Do not touch electrical connections, pins, or soldered surfaces.
TSR Bay Dimensions, Weights, and Floor Loading
Table 1-2. Individual Component Weights
Module/Dolly Description Controller Module
1.4 kg
(3 lb)
Cooling Module
7.3 kg
(16 lb)
Custom Dolly
33 kg
(72 lb)
Filler Module
3.7 kg
(8.2 lb)
Router Module
5.9 kg
(13 lb)
Server Module
7.3 kg
(16 lb)
Floor Loading
The TSR Bay maximum configuration produces the following floor loading. First the distributed load is calculated per Bellcore GR-63-CORE and NEBS requirement, which is for the floor area of a rectangle bounded by the bay sides (without side panels) and the center line of the minimum front (1219 mm or 48 in.) and rear (609 mm or 24 in.) aisles. The second is the concentrated load, calculated for the area of the bay frame (592 mm by 638 mm or 23.3 in. by 25.1 in.).
Distributed Load
586 kg/m2 (120 lb/ft2)
Concentrated Load
1684 kg/m2 (345 lb/ft2)
TSR System Hardware
The TSR split bay configuration supports two independent routers within one TSR bay. Each bay supports other hardware components and modules. Each router module contains a line card and a switch card and resides in a single module enclosure. Each server module resides in a module enclosure with a power conversion card, persistent file storage, and a pair of solid state disks.
TSR Split Bay Configuration
The TSR split bay configuration allows a single TSR bay to function as two separate routers by dividing the TSR bay into an upper and lower router. Each upper or lower router has its own:
- Server module
- Collection of IP router modules
- Passive fabric interconnection backplane
Each upper and lower router (and their respective backplanes) operate independently but support the multiple switching paths in their respective bay locations. Each backplane supports multiple switching paths that enable TSR modules to be independent of one another and to intercommunicate one module to another through IP packet switching. Packet cut-through and high speed module-to-module interconnects significantly reduce packet forwarding delay. Multiple paths load share by random path selection on intermodule packet transfer.
System Redundancy
The TSR split bay configuration with upper and lower routers has separate redundant power connections to the TSR system backplane. Each router incorporates redundant power supply inputs at the breaker interface level, distributed power conversion on each module, and a redundant cooling assembly.
Maximum Hardware Configuration
A maximum TSR split bay hardware configuration consists of two independent routers within one bay. Each bay includes:
- Router modules
- Server modules
- Two cooling modules
- Two bay controller modules
Figure 1-1 shows the TSR split bay hardware configuration
.
Figure 1-1. TSR Split Bay Hardware Configuration
Hardware Descriptions
This section provides brief descriptions of the TSR system hardware components. The TSR system supports insertion and removal of the components with the system power on.
Bay Components
The TSR bay houses the router modules, server modules, bay controller modules, and cooling modules. These are all field replaceable units.
Figure 1-2 shows the TSR bay hardware components.
Figure 1-2. Bay Components
Router Modules
The TSR system supports router modules in combinations of module speeds in a single chassis backplane. Router modules support PPP, OSPF, IS-IS and BGP protocols. Router modules interconnect to server modules through a 100BaseT Ethernet cable (RJ-45).
Server Modules
The TSR offers two identical servers, the primary and secondary server.
Primary Server
Each server module provides a 300 Mhz PowerPC 604e CPU, 576 Mbytes of memory (64 Mb on the baseboard and 512 Mb of add-on PMC memory), and 32Kbytes of NVRAM for maintaining configuration and software images.
The server module also supports four 10/100BaseT Ethernet port and DB-9 console port connections.
Each server module resides in a module enclosure together with a power conversion card, persistent file storage, and a pair of solid state disks.
Secondary Server (Warm Stand-by Server)
Physically identical to the primary server, the warm stand-by server is designed and implemented to take over in the event the primary server becomes inactive. The servers are connected to the bay controllers via the server connector panel. The ETH3 and ETH4 ports of the server connect to the server connector panel. A server connector panel connection leads to an Ethernet repeater located on the bay controllers. This repeater allows the bay controller and servers to look like one logical LAN. The ETH0 port provides a redundant warm stand-by connection between the servers in the event the primary warm server communication path via ETH3 and ETH4 goes down.
The primary and secondary servers contain two heartbeat connections for redundancy. ETH3 and ETH4 connections are required to form the first peering session. The first heartbeat is a multicast message over the bay controller network. The second heartbeat is over the server ETH0 port and this requires a connection to an external network management system. The two heartbeats ETH3/ETH4 and ETH0 work in unison and begin as soon as the server is activated.
If the primary server stops receiving heartbeats, it initiates a management trap, and if after 5 minutes it has not received a heartbeat, it will wait for heartbeats from the secondary server. The secondary server will wait for heartbeats from the primary server for 5 minutes before it becomes active. This allows the network operator sufficient time to reboot the primary and allow it to remain as the primary.
For software configuration details, refer to the IPriori CLI Reference (Vol. 1).
NOTE In a Split Bay configuration, you must chose between having either a redundant bay controller or warm standby server. This is due to a limitation in available ports. In addition, it is not possible to support redundant warm stand-by servers on both halves of the split bay.
Cooling Assembly
The cooling assembly consists of two cooling modules and two bay controllers.
Each cooling module provides two fans, which are 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 TSR bays by sending signals to the cooling modules to raise or lower the speed of the fans as needed.
The TSR bay controller modules monitor both the system power and cooling modules. The TSR bay controllers monitor the cooling modules and ensure proper airflow within the system components within the bay.
Installation
For information regarding installation, please refer to the Terabit Switch Router Site Prep Guide.
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Copyright © 2001
Avici Systems Inc.
Avici® and TSR® are registered
trademarks of Avici Systems Inc.
IPriori™ is a trademark of Avici Systems Inc.
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Last Updated: 06/11/01 at 10:48:20
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