90033900 B
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
*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
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
A.C Power Requirements (maximum)
100-240 VAC, 50-60 Hz
15W (15VA) for units with less than 32 ports
25W (25VA) for 32-port units
CAUTION:
To prevent electric shock, do not remove the
cover of an EtherLite module. There are no user-serviceable
parts inside. Refer servicing 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., 1999
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 115Kbps or 230Kpbs on all ports simulta-
neously. This table shows all EtherLite models and their capabilities.
EtherLite Models
* Individual ports are configurable as either EIA-232 or EIA-422.
** 115Kbps is not attainable on all ports simultaneously on the EL-32.
Installing the EtherLite Software
Install the hardware before you install the device driver software. Follow
the software installation instructions included on the Access Resource
CD.
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 Hardware
1.
Write the Ethernet address of the unit on the following line. It will be
needed during software installation. This address is printed on a
label attached to the unit.
Signal
RJ-45
Pin
Direction
RTS*
1
RxD(-)
2
input(-)
DCD*
3
RxD(+)
4
input(+)
TxD(+)
5
)
SG
6
TxD(-)
7
output(-)
CTS*
8
Signal
RJ-45
Pin
Direction
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.
Model
Serial
Ports
Port
Protocol
Ethernet
Connection
Maximum
Baud Rate
EL 2
2
EIA-232
10BASE-T
230Kbps
EL 2
2
EIA-422
10BASE-T
230Kbps
EL 2
2
EIA-485
10BASET
230Kbps
EL 8
8
EIA-232
10BASE-T
115Kbps
EL 16
16
EIA-232
10BASE-T
115Kbps
EL 32
32
EIA-232
10BASE-T
115Kbps**
EL 160
16
EIA-232
10/100BASE-T
230Kbps
EL 162
16
EIA-232 or
EIA-422*
10/100BASE-T
115Kbps
