Options And Accessories; Option 04: Yt-1 Chart Recorder; Option 05: Metric Default; Option 06: Ethernet - Tektronix 1503C User Manual

Options and Accessories

Option 04: YT-1 Chart Recorder

Option 05: Metric Default

Option 06: Ethernet

What is Ethernet?
1503C MTDR User Manual
The following options are available for the 1503C MTDR:
Option 04 instruments come equipped with a chart printer. Refer to the YT-1/ YT-1S
Chart Recorder Instruction Manual that comes with this option for instructions on
operation, paper replacement, and maintenance.
Option 05 instruments will power up in the metric measurements mode. Standard
measurements may be selected from the menu, but metric will be the default.
Option 06 instruments include circuitry that allows the 1503C to test an Ethernet
bus using time-domain reflectometry with minimum disruption to the IEEE 802.3
protocol.
Ethernet was invented by the Xerox Corporation in 1973 to allow various data
devices to use a common communications bus. In an Ethernet system, signals flow
in all directions and the transceivers attached to the Ethernet receive all
transmissions.
Ethernet cable is typically 50 Ohms with 50-Ohm terminators at each end to
prevent signal reflections. Reflections can interfere with transmissions sent out by
the system.
ThinWire, Cheapernet, and Thin Ethernet are variations of Ethernet. These are
usually used as a branch of the main network with a limited number of stations. They
use a more flexible cable and are usually connected to each Media Access Unit
(MAU) with a T-connector instead of a tap.
Segments are the smaller sub-networks in an Ethernet system. Each segment can
be up to 500 meters long and have up to 100 transceiver taps. Each tap must have
at least 2.5 meters of cable between itself and the next tap.
Transceivers transmit data to and from the stations on the Ethernet bus. The typical
Ethernet data rate is 10 million bits per second. At each tap is a transceiver (MAU)
sending and receiving this data. They also provide electrical isolation between the
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