Patton 1002, 1002S User Manual

USER
MANUAL

MODEL 1002
and 1002S

Asynchronous
2-Wire / Coax
Short Range Modem

An ISO-9001

Certified Company

Part #07M1002-C
Doc. #050011UC
Revised 4/28/98

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

1.0 WARRANTY INFORMATION

Patton Electronicswarrants all Model 1002 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 shallPatton Electronicsbe 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 Electronicsspecifically 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 1002 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 1002 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 1002
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).

1.3 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 1002. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

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

2

2.0 GENERAL INFORMATION

3.0 INSTALLATION

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 [phone].

2.1 FEATURES

•Full duplex operation on coax or a single twisted pair

•Data rates to 19,200 bps

• Range to 2 miles (3.2 km)

• No AC power or batteries required

• Twisted pair connection via strain relief, RJ-11 or RJ-45

• Surge protected (Model 1000S only)

• Coax connection via female BNC (optional)

• External DCE/DTE switch

• Made in the USA

2.2 DESCRIPTION

The Model 1002 Asynchronous Short Range Modemextends
RS-232 distances to 2 miles (3.2 km) over coax or a single
unconditioned twisted pair. The small size of this unit enables use
where serial ports are very close together or are not easily accessible.
The Model 1002 incorporates innovative circuitry that lets it operate
without connection to AC power or batteries. The necessary power for
operation is derived from the RS-232 input signals.

An external DCE/DTE switch allows easy connection of the Model
1002 to any device without opening the unit to re-configure. Three
enclosure options allow termination of a single twisted pair via RJ-11,
RJ-45 or terminal blocks. A unique strain relief prevents the twisted
pair from breaking or pulling loose. An additional enclosure option
allows termination of coax cable via female BNC.

The Patton Model 1002 is easy to install and should give you
years of trouble-free service. You must have a PAIR of units to perform
an installation—one at each end of an unconditioned twisted pair or
coax cable. The following instructions explain this procedure.

3.1 SETTING THE DTE/DCE SWITCH

For your convenience, the Model 1002 has an externally
accessible DCE/DTE switch (see diagram below). If the device
connected to the Model 1002 is a modem or multiplexer (or is wired like
one), set the DCE/DTE switch to “DTE”. This means the Model 1002
will behave like Data Terminal Equipment and transmit data on pin 2.

If the device connected to the Model 1002 is a PC, terminal or host
computer (or is wired like one), set the DCE/DTE switch to "DCE". This
setting means the Model 1002 will behave like Data Communications
Equipment and transmit data on pin 3.

DCE

3.2 CONNECTING THE LINE SIDE

Depending upon the type of unit, the Model 1002 connects to the
line side via single twisted pair (terminal block, RJ-11, RJ-45) or coax
(BNC). Follow the appropriate instruction set for the type of unit you
have.

3.2.1 Connection Using the Terminal Block

DTE

The Model 1002S 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 1002S is
compliant with IEC 801.5 level 2, 1kV.

3

Terminal blocks are used to connect a single pair of bare wires to
the Model 1002. The following instructions will tell you how to open the
case, connect the bare wires and fasten the strain relief collar in place.

4

1. Open the unit by gently inserting a screwdriver between the
DB-25 connector and the lip of the plastic case (see below).
You don't have to worry about breaking the plastic, but be
careful not to bend the D-sub connector.

Having opened the unit's case, you will find the terminal block
mounted at the rear of the PC board (see below). The
terminals are labled “S” for “signal” and “G” for “ground“.

2. Strip the outer insulation from the twisted pairs about one inch
from the end.

3. Strip back the insulation on each of the 2 wires about .25”.

4. Insert the two wire data line to the center (signal) and shield
(ground) terminal posts, then tighten the screws. Depending
on version, terminal post locations may vary.

DCE/DTE

Switch

Terminal

Block

Surge
Suppressors
(1002S only)

NOTE: Be sure that all cabling between the short range
modems is straight through:

SIGNAL (S) (S) SIGNAL

GROUND (G) (G) GROUND

5

6

4. Place the 2 halves of the strain relief assembly on either side
of the telephone wire and press together very lightly. Slide the
assembly until it is 2 inches from the terminal posts and press
together firmly.

5. Insert the strain relief assembly and connected wire into the
slot in the bottom half of the modem case; set it into the recess
in the case. (If the telephone wire does not fit into the strain
relief assembly, call Patton’s sales department to obtain a new
assembly).

7. Insert one captive screw through a saddle washer and then
insert the entire piece through the hole in the DB-25 end of the
case. Snap that side of the case closed. Repeat on other
side. This completes installation.

3.2.2 Connection Using RJ-11 and RJ-45 Jacks

When using the RJ-11 or RJ-45 modular jacks it is necessary to use

“straight through” cabling between the modems as shown below:

RJ-11 JACKS

SIGNAL PIN# COLOR

†

COLOR PIN# SIGNAL

DATA 3 Green Green 3 DATA
GND 4 Red Red 4 GND

RJ-45 JACKS

SIGNAL PIN# COLOR

†

COLOR PIN# SIGNAL

DATA 4 Red Red 4 DATA
GND 5 Green Green 5 GND

6. BEND the top half of the case to place it over the strain relief
assembly. Do not snap the case together yet.

7 8

†

Standard color codes—yours may be different

1 - Blue
2 - Yellow
3 - Green
4 - Red
5 - Black
6 - White

AT &T standard color codes:

1 - Blue
2 - Orange
3 - Black
4 - Red
5 - Green
6 - Yellow
7 - Brown
8 - Slate

3.2.3 Connection Using Coax (BNC)

If you have the coax version of the Model 1002, simply connect the

BNC mating connectors to both modems.

APPENDIX A

PATTON MODEL 1002 SPECIFICATIONS

Transmission Format:Asynchronous
Transmit Line: 2 wire unconditioned twisted pair

or coaxial cable
Transmit Mode: Full or half duplex
Transmit Level: 0 dBm
Control Signals: DSR and DCD turn “ON” immediately after

the terminal raises DTR; CTS turns “ON”

immediately after the terminal raises RTS
Surge Protection: Compliant with IEC 801.5 level 2, 1kV

(Model 1002S Only)

Data Rate: 0 to 19.2 Kbps
Range: 2.0 miles @ 0 to 9600 bps

5.0 miles @ 19,200 bps

Power: No external power required, derives

required power from RS-232 input signals

Size: 2.20” x 1.75” x 0.75” (5.6 x 4.4 x 1.9 cm)
Temperature: 32° to 140°F
Humidity: 95% non-condensing

9 10

APPENDIX B

APPENDIX C

PATTON MODEL 1002 CABLE RECOMMENDATIONS

The Patton Model 1002 operates at frequencies of 20kHz or less and
has been performance tested by Patton technicians using twisted-pair
cable with the following characteristics:

Wire Gauge Capacitance Resistance

19 AWG/.9mm 83nf/mi or 15.72 pf/ft. .0163 Ohms/ft.
22 AWG/.6mm 83nf/mi or 15.72 pf/ft. .0326 Ohms/ft.
24 AWG/.5mm 83nf/mi or 15.72 pf/ft. .05165 Ohms/ft.

To gain optimum performance from the Model 1002, please keep the
following guidelines in mind:

• Alwaysuse twisted parwire—this is not an option.

• Use twisted pair wire with a capacitance of 20pf/ft or less.

• Avoid twisted pair wire thinner than 26 AWG (i.e. avoid higher
AWGnumbers than 26)

• Use of twisted pair with a resistance greater than the above
specifications may cause a reduction in maximum distance
obtainable. Functionality should not be affected.

• Environmental factors too numerous to mention can affect the
maximum distances obtainable at a particular site. Use “maximum
distance” figures as a general guidelin only.

PATTON MODEL 1002 INTERFACE CONNECTIONS

DIRECTION STANDARD “DCE” SETTING DIRECTION

1- (FG) Frame Ground
2- (TD) Transmit Data To Model 1002
3- (RD) Receive Data From Model 1002
4- (RTS) Request to Send To Model 1002
5- (CTS) Clear to Send From Model 1002
6- (DSR) Data Set Ready From Model 1002

To Model 1002 Data Term. Ready (DTR) - 20

DIRECTION STANDARD “DTE” SETTING DIRECTION

From Model 1002Data Term. Ready (DTR) - 20

7- (SG) Signal Ground
8- (DCD) Data Carrier Detect From Model 1002

1- (FG) Frame Ground
2- (TD) Transmit Data From Model 1002
3- (RD) Receive Data To Model 1002
4- (RTS) Request to Send From Model 1002
5- (CTS) Clear to Send To Model 1002
6- (DSR) Data Set Ready To Model 1002
7- (SG) Signal Ground
8- (DCD) Data Carrier Detect To Model 1002

Model 1002 Distance Table in Miles (km)

Data Rate

(bps)

19,200 2.2(3.5) 1.6(2.6) 1.2(1.9)

9,600 3.0(4.8) 2.1(3.4) 1.6(2.6)
4,800 4.3(6.4) 2.6(4.2) 1.7(2.7)
2,400 5.3(8.5) 2.8(4.5) 1.8(2.9)
1,200 5.6(9.0) 2.8(4.5) 1.8(2.9)

19 AWG

( 0.9 mm)

Wire Gauge

24 AWG

(0.5 mm)

(0.4 mm)

26 AWG

11 12

APPENDIX D

PATTON MODEL 1002

BLOCK DIAGRAM

Copyright © 1998

Patton Electronics Company

All Rights Reserved

13