Patton electronics 1003S, 1003 User Manual

USER
MANUAL

MODEL 1003
and 1003S

Asynchronous,
2-Wire, Carrier
Sense Short Range
Modem

SALES OFFICE
[phone]
TECHNICAL SUPPORT
[phone]
http://www.patton.com

Part #07M1003-B
Doc. #050021UB
Revised 4/28/98

An ISO-9001

Certified Company

1.0 WARRANTY INFORMATION

Patton Electronics warrants all Model 1003 components to be free
from defects, and will—at our option—repair or replace the product should
it fail within one year from the first date of shipment.

This warranty is limited to defects in workmanship or materials, and
does not cover customer damage, abuse or unauthorized modification. If
this product fails or does not perform as warranted, your sole recourse
shall be repair or replacement as described above. Under no condition
shall Patton Electronics be liable for any damages incurred by the use of
this product. These damages include, but are not limited to, the following:
lost profits, lost savings and incidental or consequential damages arising
from the use of or inability to use this product. Patton Electronics
specifically disclaims all other warranties, expressed or implied, and the
installation or use of this product shall be deemed an acceptance of these
terms by the user.

1.1 RADIO AND TV INTERFERENCE

The Model 1003 generates and uses radio frequency energy, and if
not installed and used properly—that is, in strict accordance with the
manufacturer's instructions—may cause interference to radio and
television reception. The Model 1003 has been tested and found to
comply with the limits for a Class A computing device in accordance with
the specifications in Subpart J of Part 15 of FCC rules, which are designed
to provide reasonable protection from such interference in a commercial
installation. However, there is no guarantee that interference will not occur
in a particular installation. If the Model 1003 does cause interference to
radio or television reception, which can be determined by disconnecting
the RS-232 interface, the user is encouraged to try to correct the
interference by one or more of the following measures: moving the
computing equipment away from the receiver, re-orienting the receiving
antenna and/or plugging the receiving equipment into a different AC outlet
(such that the computing equipment and receiver are on different
branches).

1.2 CE NOTICE

The CE symbol on your Patton Electronics equipment indicates that it
is in compliance with the Electromagnetic Compatibility (EMC) directive
and the Low Voltage Directive (LVD) of the Union European (EU). A
Certificate of Compliance is available by contacting Patton Technical
Support.

1.3 SERVICE

All warranty and nonwarranty repairs must be returned freight
prepaid and insured to Patton Electronics. All returns must have a
Return Materials Authorization number on the outside of the shipping
container. This number may be obtained from Patton Electronics
Technical Service at

telephone: [phone],

web address: http://www.patton.com;

email: [e-mail].

NOTE: Packages received without an RMA number will not be

accepted.

Patton Electronics’ technical staff is also available to answer any
questions that might arise concerning the installation or use of your
Model 1003. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

GENERAL INFORMATION

Thank you for your purchase of this Patton Electronics product.
This product has been thoroughly inspected and tested and is
warranted for One Year parts and labor.

If any questions or problems arise during installation or use of this
product, please do not hesitate to contact Patton Electronics Technical
Support at (301)-975-1007.

FEATURES

• "Carrier Sense" automatically detects presence of received signal
on the line

• Ideal for UNIX and similar environments where host needs to
receive a carrier signal before sending a "log-on" screen to a
terminal

• Allows troubleshooting of a line: loss of carrier indicates problem at
remote connection

• Full Duplex operation over coax or a single twisted pair.

• Data rates to 19,200 bps

• Range to 1 mile.

• No AC power required: draws necessary power from RS-232
signals.

• External DCE/DTE switch

DESCRIPTION

The Model 1003 is a Carrier Sense Short Range Modem that connects
computers and terminals over a single coax or single twisted pair cable.
The Model 1003 derives necessary power for operation from the data
and control voltages on the RS-232 interface.

The Model 1003 with "carrier sense" is ideal for UNIX and other
environments in which the host requires a carrier detect signal on pin 8
before it sends a "log-on" screen to the terminal. The carrier sense
feature works like this: The Model 1003 monitors its received line.
When a signal is received from the line, pin 8 (CD) tells the host to send
a "log-on" screen to the terminal. If the received signal is lost or
interrupted, the carrier detect signal is held low to the host. The Model
1003's carrier sense feature makes it ideal for trouble shooting in non­UNIX applications as well.

The Model 1003S is a surge protected version of the Model 1002 that
uses the latest in bi-directional, clamping, transient suppressors to
protect itself and connected equipment against harmful transient
discharges. For surge handling capability, the Model 1003S is
compliant with IEC 801.5 level 2, 1kV.

3

CONFIGURATION

Configuring the DTE/DCE Switch. Terminals (DTEs) want to "talk" to
modems (DCEs), not to other terminals. This is because terminals and
modems talk to each other on complementary pins. Terminals talk on
pin 2, while modems talk on pin 3. Similarly, terminals listen on pin 3,
while modems listen on pin 2.

The DTE/DCE switch on the Model 1003 determines whether the Model
1003 "thinks" it's a modem (DCE) or a terminal (DTE). If you are
connecting the Model 1003 to a terminal or PC, set the switch to DCE.
If you are connecting the Model 1003 to a modem or multiplexer, set
the switch to DTE.

INSTALLATION

General Instructions. The Model 1003 is intended for point-to-point
communication over a single coax or one-pair cable. Two Model 1003's
are needed for each communication link: one at each end of the cable.
Please be sure that the cable you use has no equalizers, conditioners,
or other equipment installed that could affect the signal passed between
the two Model 1003s--they need dry, unconditioned metallic cable.

DCE DTE

DCE/DTE

Switch

Surge
Suppressors
(1003S only)

Terminal

Block