Patton electronics 1050patton Manual de usuario

USER

MANUAL

MODEL 1050

AC Powered, Asynchronous

Short Range Modem

SALES OFFICE

(301) 975-1000

TECHNICAL SUPPORT

(301) 975-1007

http://www.patton.com

Part #07M1050-B

Doc. #058031B

Revised 7/30/97

CERTIFIED

An ISO-9001

Certified Company

1.0 WARRANTY INFORMATION

Patton Electronics warrants all Model 1050 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 1050 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 1050 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 1050

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 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 1050. 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

• Asynchronous RS-232 Operation

• Data Rates to 38,400 bps

• Distances up to 7 miles (ll.2 km)

• Point-to-Point or Multipoint Operation

• Optical Isolation

• Loopback Tests

• Tri-State LED Indicators

• DCE/DTE switch selectable

• Carrier Selectable for “Constantly On” or “Controlled by RTS”

• Both RJ-11 and Terminal Block Line Connectors

• Ultra-Compact Enclosure

• Externally Powered

2.2 DESCRIPTION

The Patton Model 1050 AC Powered Asynchronous Short Range

Modem is to our AC powered short haul line what the Model 1000 is to

our interface powered line–a basic short haul at a great price! And the

Model 1050 has the key features you need: optical isolation, a local

loopback test mode, LED indicators and a DCE/DTE switch. The

Model 1050 supports asynchronous RS-232 data rates to 38.4 Kbps.

Distances of 7 miles (11.2 km) (@ 1200 bps) are attainable over two

24 AWG (.5mm) twisted pair.

Housed in an ultra-compact metal enclosure, the Model 1050 offers a

choice of line connections: both external RJ-11 jack and internal

terminal block are provided. On the RS-232 side, a female DB-25 is

standard. The Model 1050 is designed for point-to-point or multipoint

applications, and is also compatible with the Patton 1060 and 1226

short hauls.

3.0 CONFIGURATION

The Model 1050 may be configured for a wide variety of

asynchronous RS-232 applications. This section will tell you how to

access and set the internal DCE/DTE switch and the internal carrier

control strap. WAIT. Before attempting to re-configure the Model 1050,

check the Default Configuration Table (below) to see if the factory

settings are correct for your application.

3.1 ACCESSING THE MODEL 1050 PC BOARD (see Note 1)

To access the internal PC board, simply remove the two screws at

the rear of the unit and slide the PC board and rear panel out of the

case. Figure 1 (below) shows the location of the DCE/DTE switch and

the RTS strap on the PC board.

Figure 1. Switch/Strap locations on Model 1050 PC board.

DEFAULT 1050 CONFIGURATION TABLE

Switch (Strap) Factory Setting Result

DTE/DCE Switch DCE Model 1050 is set to connect to

DTE device (PC, Terminal, etc.)

Carrier Control Strap Pegs 1 & 2 Carrier is “Controlled by RTS”

Carrier Control Strap

DCE/DTE Switch

DCE

123

DTE

4.0 INSTALLATION

The Model 1050 is easy to install. After configuring the unit

properly, you will need to connect the two twisted pairs and the RS-232

cable. Figure 2 (below) shows the rear panel location of the RJ-11 jack

and strain relief grommet (line connections), as well as the female DB-

25 (RS-232 connection).

Figure 3. Rear view of 1050 showing interface connectors

4.1 TWISTED PAIR WIRING OVERVIEW

These short range modems are designed to work in

pairs

. You will

need one at each end of a 4-wire twisted pair circuit. The pairs must be

"dry" (unconditioned) metallic wire, 19 - 26 AWG. The smaller gauges

limit distance somewhat compared with larger gauges. When you have

completed wiring for your data circuit, the pin connections should be as

shown below:

4.1.1 TWISTED PAIR CONNECTION USING TERMINAL BLOCKS

The Model 1050 terminal block is located on the PC board inside

the unit. To access the PC board, remove the two screws on the back

panel and slide the PC board out of the case. Connect the bare twisted

pair wires by first inserting them through the grommet on the back

panel, then stripping the ends and connecting the individual leads to

the terminal block. Be sure the end-to-end connections follow the

diagram above.

3.2 SETTING THE DCE/DTE SWITCH

Correct setting of the DCE/DTE switch eliminates the need for RS-

232 crossover cables. If the RS-232 device you are connecting to the

Model 1050 is a PC, terminal or host, or is wired like one, set the

DCE/DTE switch to "DCE". If the RS-232 device you are connecting to

the Model 1050 is a modem or multiplexer, or is wired like one, set the

DCE/DTE switch to "DTE".

3.3 SETTING THE CARRIER CONTROL STRAP (see Note 2)

The setting of the carrier control strap determines whether carrier

is “constantly on” or “controlled by RTS”. For “controlled by RTS”

position the strap on pegs 1 & 2. For “constantly on” position the strap

on pegs 2 & 3. Figure 2 (below) shows the two possible settings of the

carrier control strap.

NOTE 1: If you are connecting twisted pair to the Model 1050

using the internal terminal blocks, make the twisted pair

connection before re-inserting the PC board into the case. See

Section 4.1.1 for details on twisted pair connection.

NOTE 2: If you are using the Model 1050 in a multipoint

application, consult Section 4.2 for proper Master and Slave carrier

control settings.

XMT + RCV+

XMT - RCV -

RCV - XMT -

RCV + XMT +

To Shield (Optional) }One Pair

}One Pair

RS-232 Interface

Made In The USA

LinePower

Powered Async. Short

Range Modem

Figure 2 Model 1050 strap settings

123 123 123

4.1.2 TWISTED PAIR CONNECTION USING RJ-11

If your two-pair cable is terminated in an RJ-11 plug, you may use

the RJ-11 jack in the back of the Model 1050 to make the connection.

The RJ-11 jack on a Model 1050 series Short Range Modem is

prewired for a standard TELCO wiring environment. To be sure you

have the right wiring, use the diagram below as a guide.

RJ-11 SIGNAL

1 ---------------------GND†

2 ---------------------RCV-

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

4 ---------------------XMT-

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

6 ---------------------GND†

For proper signal crossing between two Model 1050s using RJ-11

connectors, pin-out the twisted pair cable according to the diagram

below.

RJ-11 Cable (4-Wire)

SIGNAL PIN# PIN# SIGNAL

GND†1-----------------------6 GND†

RCV- 2-----------------------4 XMT-

XMT+ 3-----------------------5 RCV+

XMT- 4-----------------------2 RCV-

RCV+ 5-----------------------3 XMT+

GND†6-----------------------1 GND†

†Connection to ground is optional

4.2 WIRING FOR MULTIPOINT CIRCUITS

The Model 1050 supports multi-point applications using either a

star or daisy chain topology. Both topologies require special wiring, as

well as specific carrier control strap settings for master and slave units.

4.2.1 DAISY CHAIN TOPOLOGY

Using a daisy chain topology, you may connect as many as 10

Model 1050s together in a master/slave arrangement. Maximum

distance between the units will vary based upon the number of drops,

data rate, wire gauge, etc. Call Patton Technical Support for specific

distance estimates.

Figure 3 (below) shows how to wire the two-pair cables properly for

a Model 1050 daisy chain topology. Note that the ground connection is

not needed.

In a multipoint topology, you must configure the master Model

1050's carrier control strap differently than those of the slave Model

1050(s). Here are the proper carrier control strap settings for a daisy

chain topology:

Function Carrier Control Strap Setting

Master Carrier “Constantly ON” (pegs 2 & 3)

Slave(s) Carrier “Controlled by RTS” (pegs 1 & 2)

7 8

HOST FIRST SLAVE OTHER SLAVE(S)

XMT+ RCV+ RCV+

XMT- RCV- RCV-

RCV+ XMT+ XMT+

RCV- XMT- XMT-

Figure 3. Model 1060 daisy chain wiring

4.2.2 STAR TOPOLOGY

Using a star topology, you may connect several Model 1050s

together in a master/slave arrangement. Maximum distance between

the units will vary based upon the number of drops, data rate, wire

gauge, etc. Call Patton Technical Support for specific distance

estimates.

Figure 4 (below) shows how to wire the two-pair cables properly for

a Model 1050 star topology. Note that the ground connection is not

needed.

In a multipoint topology, you must configure the master Model

1050's carrier control strap differently than those of the slave Model

1050(s). Here are the proper carrier control strap settings for a star

topology:

Function Carrier Control Strap Setting

Master Carrier “Constantly ON” (pegs 2 & 3)

Slave(s) Carrier “Controlled by RTS” (pegs 1 & 2)

4.3 RS-232 CONNECTION

To connect the Model 1050 to a piece of data terminal or data

communications hardware, use a

straight through

RS-232 cable. Plug

the cable directly into the DB-25 port on the rear of the Model 1050.

The DCE/DTE switches eliminate the need for a crossover cable.

5.0 OPERATION

Once you have configured each Model 1050 properly and

connected it, simply plug in the AC power adapter to get it running;

there is no power switch on the Model 1050. You can monitor the

operation of the Model 1050 using the front panel LED indicators and

built-in loopback test modes.

5.1 LED INDICATORS

The Model 1050 incorporates three front panel LEDs that show the

status of the modem:

1. The loopback test LED glows when the loopback test switch

has been depressed and is in a test mode.

2. The tri-state TD and RD indicators blink red and green with data

activity. Solid red indicates a low RS-232 logic level. Note: RS-232

devices idle in a low state, so the LED will glow red if the connections

are correct and the RS-232 device is in an idle state.

5.2 LOOPBACK TEST MODES

Select the test modes by depressing the "Loopback Test" switch.

When in loopback mode, the "Loopback Test" LED will glow red. Two

tests are possible using this switch: Local Analog Loop (LAL), and

Remote Analog Loop (RAL).

5.2.1 LOCAL ANALOG LOOP

The first test mode is Local Analog Loop (V.54 Loop 3). Any data

sent to the local Model 1050 in this mode will be echoed (returned)

back to the user device. For example, characters typed on the

keyboard of a terminal will appear on the terminal screen (see Figure 3

on the following page).

(continued)

109

HOST FIRST SLAVE SECOND SLAVE

XMT+ RCV+ RCV+

XMT- RCV- RCV-

RCV+ XMT+ XMT+

RCV- XMT- XMT-

Figure 4. Model 1060 star wiring

5.2.2 REMOTE ANALOG LOOP

The second test mode is Remote Analog Loop. To enter this

mode, set one of the Model 1050s (local) in test mode by depressing

the "Loopback Test" switch. Any characters sent from the remote 1050

will be returned to it (see Figure 5). If no characters are echoed back,

check the wiring between the two Model 1050s. Be sure to wire the

units according to the instructions in Section 4.0 Installation.

11 12

APPENDIX A

PATTON MODEL 1050 SPECIFICATIONS

Transmission Format: Asynchronous

Transmission Line: 19 to 26 AWG twisted pair

Range: 7 miles on 24 AWG twisted pair @ 1200 bps

Serial Interface: EIA RS-232 (CCITT V.24), DB-25 female

Twisted Pair Interface: Terminal blocks, RJ-11 jack

Data Rates: 0 - 38,400 bps

Applications: Point-to-point, Multipoint

Indicators: Tri-state for transmit data, receive data, and

test

Diagnostics: Local Analog Loopback (LAL), Remote

Analog Loopback (RAL)

Optical Isolation: 2500V RMS (minimum)

Power Supply: Wall mount, 9-12VAC, 200ma

Temperature Range: 0-60°C (32-140°F)

Altitude: 0-15,000 feet

Humidity: 5 to 95% noncondensing

Dimensions: 1.58”H x 4.16”W x 3.75”D

Weight: 13.2 oz. (without transformer)

Local 1060

In Normal Mode Remote 1060

In Normal Mode

TX+

TX-

RX-

RX+

RX-

TX-

TX+

Local 1060

In Loopback Mode Remote 1060

In Normal Mode

RX+

RX-

TX-

TX+

TX-

RX-

RX+

Figure 5. Loopback Test Modes

APPENDIX B

PATTON MODEL 1050 CABLE RECOMMENDATIONS

All Patton Electronics Company Short Range Modems are tested to

the distances published in our Catalogs and Specification Sheets on

twisted-pair cable with the following characteristics:

Wire Gauge Capacitance Resistance

19 AWG(.9mm) 83nF/mi or 15.72 pF/ft. .0163Ω/ft.

22 AWG(.6mm) 83nF/mi or 15.72 pF/ft. .0326Ω/ft.

24 AWG(.5mm) 83nF/mi or 15.72 pF/ft. .05165Ω/ft.

26 AWG(.4mm) 83nF/mi or 15.72 pF/ft. .08235Ω/ft.

We fully expect that the Short Range Modems will operate on lines

with specifications different from those tested, but to reduce the

potential difficulties in the field, one should ensure that the cable being

used has similar or better characteristics (lower capacitance or lower

resistance).

Wire with capacitance of 20pF/ft. or less is suitable for all our Short

Range Modems however, distances may vary from those published in

our catalog. Resistance will also affect distance but not functionality.

Wire should be 26 AWG (.4mm) (or larger (smaller AWG#).

Patton products are designed to withstand normal environmental

noise and conditions however, other environmental factors too

numerous to discuss in this format may affect proper operation of the

SRM’s.

Selection of the proper SRM for an application is critical to

maintaining Customer Satisfaction and should be taken seriously.

Certain models are better suited for particular applications and

environments than others.

APPENDIX C

PATTON MODEL 1050 INTERFACE PIN ASSIGNMENT

RS-232 FEMALE, D-SUB 25 CONNECTOR

(DCE ORIENTATION)

1- (FG) Frame Ground

2- (TD) Transmit Data To 1050

3- (RD) Receive Data From 1050

4- (RTS) Request to Send To 1050

5- (CTS) Clear to Send From 1050

6- (DSR) Data Set Ready From 1050

7- (SG) Signal Ground

8- (DCD) Data Carrier Detect From 1050

DIRECTION STANDARD RS-232C/V.24 “DCE” SETTING DIRECTION

1- (FG) Frame Ground

2- (TD) Transmit Data From 1050

3- (RD) Receive Data To 1050

4- (RTS) Request to Send From 1050

7- (SG) Signal Ground

8- (DCD) Data Carrier Detect To 1050

From 1050 Data Term. Ready (DTR) - 20

DIRECTION STANDARD RS-232C/V.24 “DTE” SETTING DIRECTION

13 14

APPENDIX D

PATTON MODEL 1050 BLOCK DIAGRAM

Patton Electronics 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:

_________________________________________________________

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