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Rockwell Automation 1785-TR10B5 Coax Transceiver for 10BASE5 Installation Instructions User Manual

Coax transceiver for 10base5, Installation instructions

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1785-5.17 - January 1999

Installation Instructions

Coax Transceiver for 10BASE5

Catalog Number 1785-TR10B5

The coax transceiver lets you connect a device with an AUI interface to a 10
Mbit/s CSMA/CD LAN (ISO/IEC 8802-3, IEEE 802.3, 10BASE5) coax
cable connection via this cable piercing tap.

Monitoring LEDs for
power
collision/jabber control
data

SQE test can be disabled
externally

Compact construction

To the Installer

Description

The 1785-TR10B5 coax transceiver can be connected to the AUI interface
of a device either directly or via an AUI cable. It is connected to the coax
cable by a coax interface.

The transceiver offers these functions according to IEEE 802.3 10BASE5:

receiving the data at the transceiver interface and sending them into the
coax cable

receiving the data from the coax cable and sending them to the
transceiver interface

indication via a yellow LED of data transmission and reception through
the coax cable

detection of data collisions in the network and reporting them to the
terminal equipment as well as indicating them by a red LED

ability to enable/disable the SQE test: at the end of every transmit
operation, a short collision signal (heart beat) approx. 1 µs long is sent to
monitor the electronics

jabber control and display: protecting the network from data packets that
are too long (> 20 ms)

Topic

Page

Description

1

Installation

2

Coupling the Transceivers with the Coax Cable (10BASE5)

2

Compliance to European Union Directives

4

Technical Data

7