Patton electronics 1005 Manual de usuario

USER

MANUAL

MODEL 1005 and

1005S

Async. Carrier Sense

Short Range Modem

SALES OFFICE

(301) 975-1000

TECHNICAL SUPPORT

(301) 975-1007

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.

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: (301) 975-1007,

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

email: [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 1005. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

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 (301) 975-1007.

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.

DCE/DTE

Switch Surge

Suppressors

(1005S only)

Terminal

Block

RJ-11SIGNAL 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 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†1Blue---------------------White 6GND†

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

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

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

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

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

†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.

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 necessary for 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.

910

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 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 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)

1112

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

Patton Electronics Company

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

13 14

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