Digi specifications EIA-422 Mode EtherLite 2 or 162 only, EIA-422 Pinouts, EIA-485 Pinouts

EIA-422 Mode (EtherLite 2 or 162 only)

To operate a port of the EtherLite 162 EIA-422 in EIA-422 mode, set the port’s EIA-422 ENABLED switch to the up position. Set the TERMINA- TION (422 ONLY) switch to the down position. This switch connects a 120 ohm, 1/2 watt resistor across the input signals.

EtherLite 2 EIA-422 ports are hard-wired to EIA-422 mode, and have no termination installed. Pinouts are shown in the table below.

Note: 2-wire multidrop configuration for EIA-422 is not supported.

EIA-422 Pinouts

Signal	RJ-45	Direction
	Pin
RTS*	1
RxD(-)	2	input(-)
DCD*	3
RxD(+)	4	input(+)
TxD(+)	5	output(+)
SG	6
TxD(-)	7	output(-)
CTS*	8

*EIA-232 signals on EtherLite EIA-422 only

EIA-485 Mode (EtherLite 2 EIA-485 only)

EtherLite 2 EIA-485 ports are wired for half duplex multiple drop EIA- 485 mode and have no termination installed.

EIA-485 Pinouts

Signal	RJ-45	Direction
	Pin
No connect*	1
No connect*	2
No connect*	3
TX(A)/RX(A)	4	Bidirectional
TX(B)/RX(B)	5	Bidirectional
GND	6
No connect*	7
No connect*	8

*Do not connect any signal.

Environmental Specifications

Operating Temperature

32°F (0°C) to 122°F (50°C) for units with less than 32 ports 32°F (0°C) to 95°F (35°C) for 32-port units

Storage Temperature

-13°F (-25°C) to 167°F (75°C)

Operating or Storage Humidity

0 to 90% non-condensing

AC Power Requirements (maximum)

100-240 VAC, 50-60 Hz

15W (15VA) for units with less than 32 ports

25W (25VA) for 32-port units

Power Cord

The recommended power cord for North American units is:

UL Listed, CN, detachable type SJT or SVT, 3 conductor, 18 AWG, rated 125 V, 10 A.

CAUTION: To prevent electric shock, do not remove the cover of an EtherLite module. There are no user-serviceable parts inside. Refer ser- vicing to qualified personnel.

Copyright

The Digi logo and EtherLite are registered trademarks of Digi International. All other brand and product names are trademarks of their respective holders.

© Digi International Inc., 2000

All Rights Reserved

Information in this document is subject to change without notice and does not represent a commitment on the part of Digi International.

Digi provides this document “as is”, without warranty of any kind, either expressed or implied, includ- ing, but not limited to, the implied warranties of fitness or merchantability for a particular purpose. Digi may make improvements and/or changes in this manual or in the product(s) and/or the program(s) described in this manual at any time.

This product could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes may be incorporated in new editions of the publication.

EtherLite

Hardware

Information Guide

Overview

Digi EtherLite serial port servers connect asynchronous serial ports to 10BASE-T and 100BASE-T Ethernet connections. Most EtherLite serv- ers support speeds up to 115 Kbps or 230 Kpbs on all ports simulta- neously.

Ethernet Cabling Requirements

The EtherLite unit requires an unshielded twisted-pair (UTP) 10Base-T Ethernet or 100Base-TX connection. In order to maintain radio frequency emissions compliance, use EIA/TIA 568-compliant Category 4 or Cate- gory 5 for 10Base-T and Category 5 only for 100Base-TX.

Installing the EtherLite Software

Install the hardware before you install the device driver software. Follow the software installation instructions on the Access Resource CD.

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