Distance And Cable Type; Receive And Transmit Functions; Polarity Detection And Correction - Cabletron Systems CTP100T User Manual

CHAPTER 1: INTRODUCTION

1.3.2 Distance and Cable Type

The CTP100T adapter supports an unshielded twisted pair (UTP)
segment that meets 10BASE-T requirements as described in Chapter 2.
An IEEE 802.3, 10BASE-2 compliant thin-net segment of up to 100
meters (330 feet) long can be connected to the CTP100T adapter. This
segment can support up to 10 nodes when using 50 ohm, RG-58A/U
thin-net coaxial cable.

1.3.3 Receive and Transmit Functions

In the receive function, the CTP100T adapter receives data from the
thin-net segment and routes it to the twisted pair segment. In the
transmit function, the CTP100T adapter receives data from the twisted
pair segment and routes it to the thin-net segment.
The receive function of the CTP100T adapter is disabled when data is
either being transmitted on the thin-net segment or when a collision is
detected on the thin-net segment. When a collision is detected, a jam
signal is generated and sent out to the twisted pair segment.

1.3.4 Polarity Detection and Correction

The CTP100T adapter incorporates a Polarity Detection and Correction
feature. This feature allows the CTP100T adapter to transmit and
receive data on the twisted pair link regardless of the link polarity. If the
polarity on the twisted pair link is reversed, the Link LED flashes to
indicate this condition.
Note: If this condition exists, the segment should be removed from the
CTP100T adapter and the wiring corrected. This will prevent future
problems in the event that the segment needs to be attached to a device
without the Polarity Correction and Detection feature.
Page 1-4 CTP100T USER'S MANUAL