- Download
Software
- Research a
Problem - Case Management
- Communities and Forums
- Contract & Product Management
- Technical Documentation Advanced Search
- Documentation Feedback Form
- Documentation Symbols Key
- End-of-Life Products
- Guidelines and Policies
- Security Resources
Juniper was the first North American IP routing vendor to achieve the prestigious TL 9000 certification by the Quality of Excellence for Suppliers of Telecommunications (QuEST) Forum in the router category, for design, development, provision and service and support.
What is J-Care?
It's the world-class service and support that you expect from a company that delivers the industry's best infrastructure and security products. With J-Care, you now have the confidence knowing that Juniper will do our part to keep you on top of the world!
- Downloads
- T640 Router Overview
T640 Router Overview
This guide provides an overview and description of the Physical Interface Cards (PICs) supported by the Juniper Networks® T640 Core Router
PICs provide the physical connection to various network media types. The PICs are mounted on Flexible PIC Concentrators (FPCs), which are inserted into a slot in a T640 router. A PIC typically occupies a single slot on an FPC. PICs receive incoming packets from the network and transmit outgoing packets to the network. During this process, each PIC performs framing and high-speed signaling for its media type. Before transmitting outgoing data packets, the PICs encapsulate the packets received from the FPCs. Each PIC is equipped with a media-specific ASIC that performs control functions tailored to the PIC's media type. For complete information about installing PICs and transceivers, see the PIC and Transceiver Installation Instructions located at http://www.juniper.net/techpubs/.
Blank PICs resemble other PICs but do not provide any physical connection or activity. When a slot is not occupied by a PIC, you must insert a blank PIC to fill the empty slot and ensure proper cooling of the system.
T640 routers support the Type 1, Type 2, Type 3, and Type 4 FPCs listed in FPCs Supported (T640 Router). PIC/FPC Compatibility (T640 Router) provides PIC/FPC compatibility matrixes for the current PICs for T640 routers, both standalone and connected to a T640 Matrix platform unless otherwise noted.
For a complete list of end-of-life FPCs and end-of-life Enhanced FPCs for M Series and T Series routers, see the M-series and T-series Routing Platform End-of-Life FPC Guide located at http://www.juniper.net/techpubs/.
