Tektronix Phasershare Printer Ethernet cables and termination, 10BaseT or 100BaseTx Twisted Pair

PhaserShare Series B Network Interfaces 2

Ethernet cables and termination

N O T E

To fully comply with EMI specifications, the use of shielded or screened cables may be required. “Shielded” describes IBM-defined cables used with the DB-9 connector. “Screened” describes cables that are electrically similar to Category 4 UTP, but with an added shield or screen.

10BaseT or 100BaseTx (Twisted Pair)

100BaseTx requires Category 5 (100-Ohm UTP) cabling.

The Ethernet standard does not allow a direct 10BaseT connection between a single computer and a single printer. Use 10Base2 (Thin Ethernet) to connect a single computer to a single printer.

C A U T I O N

Do not use “silver satin” telephone extension cables for 10BaseT networks, either as drop cords or as patch cables in the wiring closet. (Silver satin cables are flat, usually silver or gray, with 28-gauge stranded or tinsel conductors.) Do not use shielded twisted pair cable intended for IBM Token Ring networks or voice-grade (level 1 or 2) unshielded twisted pair cable for wiring runs. These cables do not

meet the requirements for 10BaseT and will lead to unreliable operation.

10Base2 (Thin Ethernet)

Depending on the type of Ethernet cables you use and your network configuration, you may need to use terminators at certain points in the installation. Refer to the manufacturer’s documentation for your Ethernet adapters and cables for details.

10Base5 (Thick Ethernet)

Connecting the printer using thick coax (10Base5) requires an adapter; contact your dealer to obtain adapters, cables, and terminators.

PhaserShare Networking Manual 13