Chapter 2 - Getting Started

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Thick Ethernet

To connect the router’s Ethernet interface to a standard (thick) Ethernet cable you will need a transceiver cable connection at the correct loca- tion on your Ethernet cable. The transceiver cable will attach directly to the DB-15 connector on the router.

10BaseT Twisted-Pair Ethernet

To connect the router’s Ethernet interface to twisted-pair Ethernet cabling you will need an unshielded twisted-pair station cable that is connected to a 10BaseT-compatible twisted-pair hub.

ϖNote: Ethernet cables and cable connectors are not supplied with the RISC Router product. Please contact your reseller or your Compatible Systems representative for information on obtaining the correct Ethernet cabling supplies.

Telco Line Connection Requirements

The RISC Router 3500R is not a line communications device. In order to connect to a wide area transmission line, you must use a 56K CSU/ DSU, ISDN Terminal Adapter, or T1/E1 CSU/DSU. Which of these devices you use depends on the type of telco line to which you are connecting one of the router’s wide area interfaces.

ϖNote: Before attempting to connect the RISC Router 3500R to a leased telco line, use the loopback features of your CSU/DSU to check the line. This can save you a considerable amount of time, since the more equipment you have on the line, the more difficult it becomes to determine where a problem is occurring.

The RISC Router 3500R provides four high-speed V.35 synchronous interfaces, each of which can be independently configured for PPP, Frame Relay or SMDS operation. The V.35 interfaces are capable of communicating to another router or a PPP client machine over a 56K CSU/DSU, an ISDN Terminal Adapter, or a T1/E1 CSU/DSU.

V.35 Interface

The RISC Router 3500R includes four V.35 cables. These cables termi- nate in a male V.35 connector, which fits the female V.35 connector supplied by virtually all V.35 line communications devices. The pinouts for this cable are shown in Appendix B.

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Compatible Systems 3500R Telco Line Connection Requirements, Getting Started Thick Ethernet, 10BaseT Twisted-Pair Ethernet