Patton electronics 1000 Manual de usuario

USER

MANUAL

MODEL 1000 and 1000S

Ultra Miniature Asynchronous

Short Range Modems

SALES OFFICE

(301) 975-1000

TECHNICAL SUPPORT

(301) 975-1007

http://www.patton.com

Part #07M1000-C

Doc. #023021UC

Revised 7/29/97

CERTIFIED

An ISO-9001

Certified Company

Dear Valued Customer,

Thank you for purchasing Patton Electronics products! We do

appreciate your business. I trust that you find this user manual helpful.

We manufacture one of the widest selections of data communications

products in the world including CSU/DSU's, network termination units,

powered and self-powered short range modems, fiber optic modems, interface

converters, baluns, electronic data switches, data-line surge protectors,

multiplexers, transceivers, hubs, print servers and much more. We produce

these products at our Gaithersburg, MD, USA, facility, and can custom

manufacture products for your unique needs.

We would like to hear from you. Please contact us in any of the

following ways to tell us how you like this product and how we can meet your

product needs today and in the future.

Web: http://www.patton.com

Sales E-mail: [email protected]

Support E-mail: [email protected]

Phone - Sales (301) 975-1000

Phone - Support (301) 975-1007

Fax: (301) 869-9293

Mail: Patton Electronics Company

7622 Rickenbacker Drive

Gaithersburg, MD 20879 USA

We are committed to a quality product at a quality price. Patton

Electronics is BABT and ISO 9001 certified. We meet and exceed the highest

standards in the industry (CE, UL, etc.).

It is our business to serve you. If you are not satisfied with any

aspect of this product or the service provided from Patton Electronics or its

distributors, please let us know.

Thank you.

Burton A.Patton

Vice President

P.S. Please tell us where you purchased this product:

_________________________________________________________

1.0 WARRANTY INFORMATION

Patton Electronics warrants all Model 1000 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 1000 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 1000 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 1000

does cause interference to radio or television reception, which can be

determined by turning the power off or disconnecting the RS-232

interface, the user is encouraged to try to correct the interference by

one 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.

1.2 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 (301) 975-1007; http://www.patton.com: or,

[email protected].

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 1000. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

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 (301) 975-1007.

2.1 FEATURES

• New design uses Surface Mount Technology

• Full duplex

• Data rates to 19.2 Kbps

• Range to 17 miles (27.2 km)

• No AC power required

• External DCE/DTE switch

• Uses modular plugs (RJ-11 or RJ-45) or terminal posts for

twisted pair connections

• Very thin case (.75") for closely spaced computer ports

• New snap-together, pop-open case

• Surge protected (Model 1000S only)

• Made in USA

2.2 DESCRIPTION

The Model 1000 Asynchronous Short Range Modem uses the

latest surface mount technology to attain high quality short range

modem performance in a low profile package. The unit operates full

duplex at data rates to 19.2 Kbps over 2 twisted pair. Requiring no AC

power or batteries, the Model 1000 supports distances to 17 miles

(27.2km).

With an externally accessible DCE/DTE switch, the Model 1000

allows easy connection to any device without opening the unit. Three

enclosure options allow terminations to be via RJ-11, RJ-45 or terminal

blocks. A unique strain relief prevents thin twisted pairs from breaking

or pulling loose.

The Model 1000S is a surge protected version of the Model 1000

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 1000S is

compliant with IEC 801.5 level 2, 1kV.

3.0 CONFIGURATION

The Model 1000 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.

Figure 1, 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 1000 has an externally

accessible DCE/DTE switch (see diagram below). If the device

connected to the Model 1000 is a modem or multiplexer (or is wired like

one), set the switch to "DTE". This setting causes the Model 1000 to

behave like Data Terminal Equipment and transmit data on pin 2.

If the device connected to the Model 1000 is a PC, terminal or host

computer (or is wired like one), set the switch to "DCE". This setting

causes the Model 1000 to behave like Data Communications

Equipment and transmit data on pin 3

(Default Setting is “DCE”).

DCE DTE

Surge

Suppressors

(1000S only)

Terminal

Block

DCE DTE

DCE/DTE

Switch

Figure 1: Location of Key Components on Model 1000 Printed Circuit Board

Figure 2: Model 1000 DCE/DTE Switch

4.0 INSTALLATION

Once you have properly configured the DTE/DCE switch, you are

ready to connect the Model 1000 to your system. This section tells you

how to properly connect the Model 1000 to the twisted pair and RS-232

interfaces, and how to operate the Model 1000.

4.1 CONNECTION TO THE TWISTED PAIR INTERFACE

The Model 1000 supports data-only communication between two

RS-232 devices at distances to 17 miles (27.2 km) 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

1000 at each end of a two twisted pair interface.

2. To function properly, the Model 1000 needs two twisted pair of

metallic wire. The pairs must be unconditioned, dry metallic wire,

between 19 and 26 AWG (.4mm to .9mm) (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 1000 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 1000's twisted pair

interface are pre-wired for a standard TELCO wiring environment (see

Figure 3). The table on the following page shows the signal/pin

relationships.

5 6

RJ-11 SIGNAL RJ-45 SIGNAL

1----------------GND†1----------------N/C

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

3----------------XMT+ 3----------------RCV-

4----------------XMT- 4----------------XMT+

5----------------RCV+ 5----------------XMT-

6----------------GND†6----------------RCV+

7----------------GND†

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

When connecting two Model 1000s, 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 1000s 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 1000, 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.

Figure 3. Pin Number Assignments for RJ11 and RJ45 Modular Jacks

RJ-11 Jack RJ-45 Jack

1. Open the unit by gently inserting a screwdriver between the

DB-25 connector and the lip of the plastic case (see Figures 4 and 5,

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 as shown in Figure 6.

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

as shown in Figure 7.

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.

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 one end only. A ground wire is

not

necessary

for proper operation of the Model 1000.

7. When you finish connecting the wires to the terminal block, the

assembly should resemble the diagram in Figure 8, below:

+RCV- G -XMT+

XMT + RCV+

XMT - RCV -

RCV - XMT -

RCV + XMT+

To Shield (Optional) }One Pair

}One Pair

Figure 4: How to Use a Small Flathead Screwdriver to Begin to Open the Model 2070 Case

Figure 5: How to Use a Small Flathead Screwdriver to Finish Opening the Model 2070 Case

Figure 6: Stripping the Outer Insulation from the Twisted Pair

Figure 7: Stripping the Insulation from Each Twisted Pair

Figure 8: Proper Twisted Pair Connections to the Model 1009 Terminal Blocks

8. Place the 2 halves of the strain relief assembly on either side of

the telephone wire and press together very lightly (See Figure 9,

below). 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 (see Figure 10, below).

10. TIP the top half of the case as necessary to place it over the

strain relief assembly (see Figure 11, below). 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 cable installation.

4.2 CONNECTION TO THE RS-232 INTERFACE

Once you have configured the Model 1000 for DTE or DCE and

connected the twisted pair wires correctly, simply plug the Model 1000

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 1000 to the

RS-232, make sure it is a

straight through

cable of the shortest possible

length—we recommend 6 feet or less).

4.3 OPERATING THE MODEL 1000

Once the Model 1000 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.

+RCV- G -XMT+

Figure 9: Re-connecting the Strain Relief Assembly

Figure 10: Positioning the Model 1000 Inside the Plastic Case

Figure 11. Connecting the Case Halves

APPENDIX B

PATTON MODEL 1000 CABLE RECOMMENDATIONS

The Patton Model 1000 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 1000, please keep

the following guidelines in mind:

•

Always

use twisted pair wire—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

AWG numbers 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 1000 SPECIFICATIONS

Transmission Format: Asynchronous

Data Rate: 0 to 19.2 Kbps

Surge Protection: Compliant with IEC 801.5 level 2,

1kV (Model 1000S Only)

Control Signal: DCE Mode: CTS (Pin 5) turns

ON immediately after the

terminal raises RTS (Pin 4);

DSR (Pin 6) and DCD (Pin 8)

turn ON immediately after the

terminal raises DTE (Pin 20)

Transmit Line: 4 wire, unconditioned line (2

twisted pair)

Transmit Mode: Full duplex, 4-wire

Transmit Level: 0 dBm

DTE/DCE 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: None required, uses ultra low

power from EIA data and control

signals

Size: 2.2" x 1.75" x 0.75"

(5.6 x 4.4 x 1.9 cm)

24 AWG

(0.5 mm) 26 AWG

(0.4 mm)

19 AWG

( 0.9 mm)

19,200 6.2(9.9) 3.7(5.9) 1.2(1.9)

9,600 7.5(12.0) 4.9(7.8) 2.5(4.0)

4,800 8.7(13.9) 5.6(9.0) 3.7(5.9)

2,400 11.8(18.9) 8.0(12.8) 4.9(7.8)

1,200 17.0(27.2) 11.8(18.9) 8.0(12.8)

Data Rate

(bps)

Model 1000 Distance Table in Miles (km)

Wire Gauge

APPENDIX C

PATTON MODEL 1000 INTERFACE SETTINGS

APPENDIX D

PATTON MODEL 1000 BLOCK DIAGRAM

Patton Electronics Company

1- (FG) Frame Ground

2- (TD) Transmit Data To Model 1000

3- (RD) Receive Data From Model 1000

4- (RTS) Request to Send To Model 1000

5- (CTS) Clear to Send From Model 1000

6- (DSR) Data Set Ready From Model 1000

7- (SG) Signal Ground

8- (DCD) Data Carrier Detect From Model 1000

To Model 1000 Data Term. Ready (DTR) - 20

DIRECTION STANDARD "DCE" SETTING DIRECTION

1- (FG) Frame Ground

2- (TD) Transmit Data From Model 1000

3- (RD) Receive Data To Model 1000

4- (RTS) Request to Send From Model 1000

5- (CTS) Clear to Send To Model 1000

6- (DSR) Data Set Ready To Model 1000

7- (SG) Signal Ground

8- (DCD) Data Carrier Detect To Model 1000

From Model 1000 Data Term. Ready (DTR) - 20

DIRECTION STANDARD "DTE" SETTING DIRECTION

13 14

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