Patton electronics 1005, 1005S User Manual

USER
MANUAL

MODEL 1005 and
1005S

Async. Carrier Sense
Short Range Modem

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

Part #07M1005-C
Doc. #052031UC
Revised 4/29/98

An ISO-9001

Certified Company

1.0 WARRANTY INFORMATION

Patton Electronicswarrants all Model 1005 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 1005 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 1005 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 1005
does cause interference to radio or television reception, which can be
determined by disconnecting the modem, 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.

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1.3 SERVICE

All warranty and non-warranty 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 1005. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

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3.0 CONFIGURATION

The Model 1005 is designed to be easy to use. There are no
internal jumpers or configuration switches to set, so there is no need to
open the case to configure the unit (you may need to open the case for
wire connection—refer to Section 4.0). The only configuration
necessary for operation is proper setting of the external DCE/DTE
switch.

The figure below shows the location of the DCE/DTE switch on the
PC board, as well as the location of the terminal block and surge
suppressors (“S” model only).

3.1 SETTING THE DCE/DTE SWITCH

For your convenience, the Model 1005 has an externally
accessible DCE/DTE switch (see diagram below). If the device
connected to the Model 1005 is a modem or multiplexer (or is wired like
one), set the switch to “DTE”. This setting causes the Model 1005 to
behave like Data Terminal Equipment and transmit data on pin 2.

If the device connected to the Model 1005 is a PC, terminal, or
host computer (or is wired like one), set the switch to“DCE”. This
setting causes the Model 1005 to behave like Data Communications
Equipment and transmit data on pin 3.

2.0 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 [phone].

2.1 FEATURES

• Ideal for UNIX operating systems

• Range to 17 miles (27.2 km)

• Data rates to 19,200 bps

• No AC power or batteries required

• Carrier sense handshaking

• Useful for troubleshooting or monitoring a line

• Very thin case for closely spaced computer ports

• Available with RJ-11, RJ-45 or terminal block with strain relief

• External DCE/DTE switch

• Connects directly to the RS-232 port

• Compatible withPatton Models 1000, 1004, 1009 and 1015

• Made in USA

2.2 DESCRIPTION

The Patton Model 1005Carrier Sense Short Range Modem
allows RS-232 UNIX systems to communicate up to 17 miles (27.2 km)
over two unconditioned twisted pair cable. Supporting data rates to

19.2 Kbps, the Model 1005 requires no AC power or batteries.

The Model 1005 has a unique carrier sense feature, which
automatically detects the presence of a carrier on the line. This is
particularly useful in UNIX environments, where the host must see a
carrier before it sends a logon screen to the terminal. This feature also
plays an important role in troubleshooting, where the presence or
absence of a carrier indicates positive or negative line integrity.

Measuring only 2.66” x 2.10” x .73” (6.76 x 5.33 x 1.85 cm), the
Model 1005 is housed in a pop-open ABS plastic case. The Model
1005 comes with a male or female DB-25 connector and a choice of
interfaces (RJ-11 jack, RJ-45 jack, or terminal blocks with strain relief).
For surge handling capability, the Model 1005S is compliant with IEC

801.5 level 2, 1kV.

3 4

DCE/DTE

Switch

Surge
Suppressors
(1005S only)

Terminal

Block

RJ-11 SIGNAL RJ-45 SIGNAL

1----------------GND

†

1----------------N/C

2----------------RCV- 2----------------GND

†

3----------------XMT+ 3----------------RCV­4----------------XMT- 4----------------XMT+
5----------------RCV+ 5----------------XMT­6----------------GND

†

6----------------RCV+
7----------------GND

†

8----------------N/C

When connecting two Model 1005s, it is necessary to use a
“crossover” cable. The diagram below shows how a crossover cable
should be constructed for an environment where both Model 1005s use
a 4-wire RJ-11 connector. Similar logic should be followed when using
RJ-45 connectors or a combination of the two.

SIGNAL PIN# COLOR

‡

COLOR PIN# SIGNAL

GND

†

1 Blue---------------------White 6 GND

†

RCV- 2 Yellow------------------Red 4 XMT-

XMT+ 3 Green------------------Black 5 RCV+

XMT- 4 Red---------------------Yellow 2 RCV-

RCV+ 5 Black-------------------Green 3 XMT+

GND

†

6 White-------------------Blue 1 GND

†

†

Connection to ground is optional

‡

Standard color codes—yours may be different

4.1.2 TWISTED PAIR CONNECTION USING TERMINAL BLOCKS

If your RS-232 application requires you to connect two pairs of
bare wires to the Model 1005, you will need to open the case to access
the terminal blocks. The following instructions will tell you how to open
the case, connect the bare wires to the terminal blocks, and fasten the
strain relief collar in place so that the wires won't pull loose.

4.0 INSTALLATION

Once you have properly configured the DCE/DTE switch, you are
ready to connect the Model 1005 to your system. This section tells you
how to connect the Model 1005 to the twisted pair and RS-232
interfaces, and how to operate the Model 1005.

4.1 CONNECTION TO THE TWISTED PAIR INTERFACE

The Model 1005 supports data-only communication between two
RS-232 devices at distances to 17 (27.2 km) miles and data rates to

19.2 Kbps. There are two essential requirements for installation:

1. These units work in pairs. Therefore, you must have one Model
1005 at each end of a two twisted pair interface.

2. To function properly, the Model 1005 needs two twisted pairs of
metallic wire. The pairs must be unconditioned, dry metallic wire,
between 19 and 26 AWG (the higher number gauges may limit
distance). Standard dial-up telephone circuits or leased circuits
that run through signal equalization equipment are not acceptable.

For your convenience, the Model 1005 is available with three

different twisted pair interfaces: RJ-11 jack, RJ-45 jack and terminal
blocks with strain relief.

4.1.1 TWISTED PAIR CONNECTION USING RJ-11 OR RJ-45

The RJ-11 and RJ-45 connectors on the Model 1005's twisted pair

interface are pre-wired for a standard TELCO wiring environment (see
Figure 1). The table on the following page shows the signal/pin
relationships.

5 6

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

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

Figure 1. AT&T standard modular color codes

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.

Once the unit has been opened, you will be able to see the
terminal blocks located at the rear of the PC board.

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

3. Strip the insulation on each of the twisted pair wires about .25”.

4. Connect one pair of wires to XMT+ and XMT- (transmit
positive and negative) on the terminal block, making careful
note of which color is positive, and which color is negative.

5. Connect the other pair of wires to RCV+ and RCV- (receive
positive and negative) on the terminal block, again making
careful note of which color is positive and which color is
negative.

Ultimately, you will want to construct a two pair crossover
cable that connects the two short hauls as shown below:

6. If there is a shield around the telephone cable, it may be
connected to “G” on the terminal block. To avoid ground
loops, we recommend connecting the shield at the computer
end only. A ground wire is not necessaryfor proper operation
of the Model 1005.

7. When you finish connecting the wires to the terminal block, the
assembly should resemble the diagram below:

XMT + RCV+
XMT - RCV ­G G
RCV - XMT ­RCV + XMT +

To Shield (Optional)

}

One Pair

}

One Pair

8. Place the 2 halves of the strain relief assembly on either side
of the telephone wire and press together very lightly. Slide the
assembly so that it is about 2 inches from the terminal posts
and press together firmly. If your cable diameter is too small
or too large for our strain relief, please contact our technical
support. We have strain relief assemblies to accommodate
most cable diameters.

9. Insert the strain relief assembly with the wire going through it
into the slot in the bottom half of the modem case and set it
into the recess in the case.

10. TIP the top half of the case as necessary to place it over the
strain relief assembly. Do not snap the case together yet.

11. 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 the process
for the other side. This completes the cable installation
process.

4.2 CONNECTION TO THE RS-232 INTERFACE

Once you have configured the Model 1005 for DTE or DCE and
connected the twisted pair wires correctly, simply plug the 1005 directly
into the DB-25 port of the RS-232 device. After doing so, remember to
insert and tighten the two captive connector screws.

Note: If you must use a cable to connect the Model 1005 to the
RS-232, make sure it is a straight throughcable of the shortest possible
length—we recommend 6 feet or less. The Model 1005 requires a
cable that incorporates pins 2, 3, 4, 5, 6, 7, 8 and 20.

4.3 OPERATING THE MODEL 1005

Once the Model 1005 is properly installed, it should operate
transparently—as if it were a standard cable connection. Operating
power is derived from the RS-232 data and control signals; there is no
“ON/OFF” switch.

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APPENDIX B

PATTON MODEL 1005 CABLE RECOMMENDATIONS

The Patton Model 1005 operates at frequencies of 20kHz or less
and has been performance tested by Patton technicians using twisted­pair 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 1005, please keep
the following guidelines in mind:

• Alwaysuse twisted pairwire—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 guideline only.

APPENDIX A

PATTON MODEL 1005 SPECIFICATIONS

Transmission Format: Asynchronous
Data Rate: 0 to 19,200 bps (no strapping)
Control Signal: DCE Mode:CTS (Pin 5) turns ON immediately after

the terminal raises RTS (Pin 4); DSR (Pin 6) turns on when is
powered-up (connected); DCD (Pin 8) turns ON after detecting the
receive signal from the line; DTE Mode:RTS (Pin 4) turns “ON”
immediately after the modem raises CTS (Pin 5); DTR (Pin 20)
turns "ON" after recognizing the receive signal from the line; Pins
11, 19 and 20 are hardwired together on the DB-25 side of the
DCE/DTE switch

Transmit Line: 4-wire, unconditioned line
Transmit Mode: Full duplex, 4-wire
Transmit Level: 0 dBm
Connection: Either a male or female DB-25
Line Connection: RJ-11 or RJ-45 jack or 5 screw terminal posts

(4 wires and 1 ground) and a strain relief insert

Power Supply: No additional power required, uses ultra low power

from EIA data and control signals; additional power can be added
at pin 9 for +V DC when DB-25 is below the RS-232 standard
requirements

Surge Protection: Compliant with IEC 801.5 level 2, 1kV (Model

1005S Only)

Size:2.66” x 2.10” x 0.73” (6.76 x 5.33 x 1.85 cm)

11 12

24 AWG

(0.5 mm)

26 AWG
(0.4 mm)

19 AWG

( 0.9 mm)

19,200 6.2(10.0) 3.7(6.0) 1.2(1.9)

9,600 7.5(12.1) 4.9(7.9) 2.5(4.0)
4,800 8.7(14.0) 5.6(9.0) 3.7(6.0)
2,400 11.8(19.0) 8.0(12.9)4.9(7.9)
1,200 17.0(27.4)11.8(19.0)8.0(12.9)

Data Rate

(bps)

Model 1005 Distance Table in Miles (km)

Wire Gauge

APPENDIX C

PATTON MODEL 1005 PIN/SIGNAL ASSIGNMENTS

APPENDIX D

PATTON MODEL 1005 BLOCK DIAGRAM

Copyright © 1998

Patton Electronics Company

All Rights Reserved

1- (FG) Frame Ground
2- (TD) Transmit Data To Model 1005
3- (RD) Receive Data From Model 1005
4- (RTS) Request to Send To Model 1005
5- (CTS) Clear to Send From Model 1005
6- (DSR) Data Set Ready From Model 1005
7- (SG) Signal Ground
8- (DCD) Data Carrier Detect From Model 1005

To Model 1005 Data Term. Ready (DTR) - 20

DIRECTION STANDARD “DCE” SETTING DIRECTION

1- (FG) Frame Ground
2- (TD) Transmit Data From Model 1005
3- (RD) Receive Data To Model 1005
4- (RTS) Request to Send From Model 1005
5- (CTS) Clear to Send To Model 1005
6- (DSR) Data Set Ready To Model 1005
7- (SG) Signal Ground
8- (DCD) Data Carrier Detect To Model 1005

From Model 1005Data Term. Ready (DTR) - 20

DIRECTION STANDARD “DTE” SETTING DIRECTION

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