Patton electronics 1008 Bedienungsanleitung

USER

MANUAL

MODEL 1008

Ultra-Miniature, High Speed,

Multipoint DB-9 Short Range

Modem

SALES OFFICE

(301) 975-1000

TECHNICAL SUPPORT

(301) 975-1007

http://www.patton.com

Part# 07M1008-D

Doc# 047041U,

Rev. E

Revised 1/22/08

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 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 1008 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 1008 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 1008 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 1008

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

determined by disconnecting the EIA/TIA-574 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 Technical

Support.

is a

straight through

cable of the shortest possible length—we

recommend 6 ft or less. The DB-9 connector on the Model 1008 is

wired according to the EIA/TIA-574 Standard, as shown below:

EIA/TIA-574 Standard

DB-9 SIGNAL

1 -----------------CD

2 -----------------RD

3 -----------------TD

4 -----------------DTR

5 -----------------SG/FG

6 -----------------DSR

7 -----------------RTS

8 -----------------CTS

9 -----------------(Optional 6-12 VDC power)

Note: The Model 1008 is configured as a DCE (Data

Communications Equipment), and is therefore designed to connect to a

DTE (Data Termination Equipment). If you need to connect the Model

1008 to another DCE device, please call Patton Technical Support at

(301) 975-1007 for details on constructing the proper crossover cable.

4.4 OPERATING THE MODEL 1008

Once the Model 1008 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. All data signals from the RS-232 and RS-485

interfaces are passed straight through. Additionally, one hardware flow

control signal is passed

in each direction

APPENDIX A

MODEL 1008 SPECIFICATIONS

Transmission

Format:

Asynchronous

Data Rate: Up to 115,200 bps

Range: Up to 9 miles

Serial Interface: DB-9, male or female; wired as a DCE

according to EIA/TIA-574 Standard.

Transmit Line: 2, 4 wire unconditioned twisted pair

Transmit Mode: 4-wire, full or half duplex; 2-wire half duplex

Control Signals: DSR turns “ON” immediately after the

Data Rate

(kbps)

115.2 3.5 2.6 1.4 0.9

38.4 5.0 2.9 2.2 1.5

9.6 7.1 4.6 3.5 2.8

1.2 9.0 6.5 5.0 3.9

Model 1008 Distance Table (miles)

Wire Gauge

19 22 24 26

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

[email protected].

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 1008. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

4.2 WIRING FOR MULTIPOINT CIRCUITS

The Model 1008 supports multi-point applications using either a

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

well as specific DIP switch settings for master and slave units. Refer to

Section 5.0 for multipoint DIP switch settings.

4.2.1 STAR TOPOLOGY

Using a star topology, you may connect several Model 1008s

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 Technical Support for specific distance estimates.

Figure 5 (below) shows how to wire the two-pair cables properly for

a Model 1008 star topology. Note that the ground connection is not

needed.

4.2.2 DAISY CHAIN TOPOLOGY

Using a daisy chain topology, you may connect several Model

1008s 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 Technical Support for specific distance estimates.

(Continued)

Figure 6 (below) shows how to wire the two-pair cables properly for

a Model 1008 daisy chain topology. Note that the ground connection is

not needed.

4.3 CONNECTION TO THE EIA/TIA-574 INTERFACE

The Model 1008 is designed to plug directly into the DB-9 serial

port of an EIA/TIA-574 DTE device (PC, laptop, host). If you must use

a cable to connect the Model 1008 to the DTE device, make sure that it

HOST FIRST SLAVE OTHER SLAVE(S)

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

XMT- ---------------------RCV- -----------------------RCV-

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

RCV- ---------------------XMT- -----------------------XMT-

Figure 6. Daisy chain wiring for Model 1008 host and slaves

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

• Operates asynchronously, point to point or multipoint,

over 2 or 4 wires

• Up to 50 multipoint device drops in a polling environment

• Data rates to 115.2 Kbps

• Passes transmit & receive data, one control signal each direction

• No AC power or batteries are required

• Variable high/low impedance settings

• Able to operate with or without “echo”

• Carrier can be set as “constantly on” or “controlled by RTS”

• Ultra-miniature size (2.50" x 1.20" x 0.75")

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

• Silicon Avalanche Diode surge protection

2.2 DESCRIPTION

The Model 1008 High Speed, Multipoint, DB-9 Short Range

Modem provides exceptional versatility in an ultra-miniature package.

Requiring no AC power or batteries for operation, the Model 1008

supports asynchronous EIA/TIA-574 data rates to 115.2 Kbps over one

or two unconditioned twisted pair. Distances up to 15.0 miles are

attainable at lower data rates (1.2 Kbps, 19 AWG twisted pair).

The Model 1008 can handle up to 50 terminal drops in a multipoint

polling environment. For RS-485 and serial printer applications

requiring hardware handshaking, the Model 1008 passes one control

signal in each direction. The Model 1008 may be configured for high or

low impedance, carrier may be set to “constantly on” or “controlled by

RTS”, and the unit can operate with or without “echo”. RTS/CTS delay

may be set for “no delay” or 8 mS.

Options for twisted pair connection include terminal blocks with

strain relief, RJ-11, RJ-45 and dual modular connectors for daisy

chaining. Silicon Avalanche Diodes provide 600 watts per wire of

protection against harmful data line transient surges.

314

HOST FIRST SLAVE SECOND SLAVE

XMT+ RCV+

RCV+

XMT- RCV-

RCV-

RCV+ XMT+

XMT+

RCV- XMT-

XMT-

Figure 5. Star wiring for Model 1008 host and slaves

3.0 CONFIGURATION

The Model 1008 is configured using two PC board mounted

4-position DIP switches. This section shows how to access the DIP

switches, provides an overview of the factory default settings, and

describes all possible configuration options. For instructions on how to

configure the Model 1008 for specific applications, refer to Section 5.0.

3.1 ACCESSING THE DIP SWITCHES

The Model 1008 has main PC board and a daughter board. DIP

switch S1 is located on the underside of the main PC board (see Figure

1, below). DIP switch S2 is located on the top of the daughter board

(see Figure 2, below).

(Continued)

When connecting two Model 1008s, it is necessary to use a

crossover cable. The diagrams below show how a crossover cable

should be constructed for the following environments: 4-wire RJ-11,

4-wire RJ-45, 2-wire RJ-11 or 2-wire RJ-45.

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

RJ-45 Cable (4-Wire)

SIGNAL PIN# PIN# SIGNAL

GND†2-----------------------7 GND†

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

XMT+ 4-----------------------6 RCV+

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

RCV+ 6-----------------------4 XMT+

GND†7-----------------------2 GND†

RJ-11 Cable (2-Wire)

SIGNAL PIN# PIN# SIGNAL

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

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

RJ-45 Cable (2-Wire)

SIGNAL PIN# PIN# SIGNAL

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

XMT- 5-----------------------5 XMT-

†Connection to ground is optional

1234

Switch S1

Figure 1. Underside of Model 1008 main PC board, showing the location of DIP switch S1.

1234

Switch S2

Figure 2. Top of Model 1008 daughter board, showing the location of DIP switch S2.

1234

To access the Model 1008’s internal PC boards, insert a small flat-

blade screwdriver between the connector and the lip of the case and

twist gently as shown in Figure 3 (below).

Both DIP switch S1 and S2 are marked with individual switch

numbers 1 thru 4. Use these numbers, as well as the “ON” designation

to orient the switch properly (see Figure 4, below). Use a small screw

driver or similar instrument to set each individual switch.

“ON”

“OFF”

Figure 4. Close-up of DIP switches S1 and S2, showing ON/OFF orientation.

1234

Figure 3. Opening the Model 1008’s plastic case with a small screwdriver

10. BEND 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 captive screw with the washer on it, 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.

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

The RJ-11 and RJ-45 connectors on the Model 1008’s twisted pair

interface are pre-wired for a standard TELCO wiring environment. The

signal/pin relationships are shown below:

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

†Connection to ground is optional

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

assembly should resemble the diagram below:

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 seat it into the

recess in the case. (If the telephone wire is too thin to be held by the

strain relief assembly, you will need to order a different sized strain

relief. Call Patton's Sales Department at (301) 975-1000.)

+XMT- G -RCV+

3.1.2 DIP SWITCH S1 SETTINGS

DIP switch S1 is used to configure receive impedance,

2-wire/4-wire operation and “echo” enable/disable. The summary table

below shows the factory default settings for switch S1. Following the

summary table is a detailed description of each individual switch.

*Note: Switches S1-2 and S1-3 should be switched simultaneously

S1-1: Receive Impedance

The setting for switch S1-1 selects the impedance of the input

receiver. You may select either a “low” impedance of 120 Ohms or a

“high” impedance of 16 kOhms. By selecting the proper impedance for

each drop, there may be up to 50 receivers in one application.

S1-1 Setting

On Low (120 Ohm)

Off High (16 kOhm typical)

S1-2 and S1-3: 2-wire/4-wire Modes

Switches S1-2 and S1-3 are set together to determine whether the

Model 1008 is in 2-wire or 4-wire operating mode. Note: 2-wire mode

is half-duplex only.

S1-2 S1-3 Setting

On On 2-wire mode

Off Off 4-wire mode

S1-4: Echo Mode

The setting for switch S1-4 determines whether the Model 1008

echoes data back to the transmitting device (half-duplex mode only).

S1-4 Setting

On Echo On

Off Echo Off

SWITCH S1 SUMMARY TABLE (factory defaults in bold)

Position Function ON Position OFF Position

S1-1 RCV Impedance 120 Ohm 16 kOhm

S1-2* 2-wire/4-wire 2-wire 4-wire

S1-3* 2-wire/4-wire 2-wire 4-wire

S1-4 Echo Mode Echo ON Echo OFF

3.1.3 DIP SWITCH S2 SETTINGS

DIP switch S2 is used to configure carrier control, RTS/CTS delay

and communication protocol. The summary table below shows the

factory default settings for switch S2. Following the summary table is a

detailed description of each individual switch.

*Note: Switches S2-3 and S2-4 should be switched simultaneously

S2-1: Carrier Control Method

The setting for switch S2-1 determines whether the carrier is

“Constantly On” or “Controlled by RTS”. This setting allows for

operation in switched carrier, multipoint and/or hardware handshaking

applications.

S2-1 Setting

On Controlled by RTS

Off Constantly ON

S2-2: RTS/CTS Delay

The setting for switch S2-2 determines the amount of delay

between the time the Model 1008 “sees” RTS and when it sends CTS.

Note: RTS/CTS Delay setting should be based upon transmission

timing.

S2-2 Setting

On 8 mSec

Off no delay

S2-3 and S2-4: “Transmit Off” Impedance

Switches S2-3 and S2-4 are set together to determine whether the

receiving device “sees” the impedance of the Model 1008’s transmitter

as being “high” or “intermediate” when the transmitter is turned off. The

“intermediate” setting is useful in half-duplex environments where the

receiving device does not respond well to the “high” setting.

S2-3 S2-4 Setting

On On Intermediate Impedance

Off Off High Impedance

SWITCH S2 SUMMARY TABLE (factory defaults in bold)

Position Function ON Position OFF Position

S2-1 Carrier Control RTS Constantly ON

S2-2 RTS/CTS Delay 8 mSec No Delay

S2-3*

“XMT Off” impedance

Intermediate High

S2-4*

“XMT Off” impedance

Intermediate High

2. Strip the outer insulation from the twisted pair(s) about one inch

from the end.

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

4. In a two pair circuit, 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

makes a connection with the two Model 1008s as shown below.

6. In a single pair circuit, use

only the transmit (XMT) pair

shown below:

Note: 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 1008.

(Continued)

XMT+--------------------------------------------------XMT+

XMT----------------------------------------------------XMT-

3.2 TYPICAL APPLICATIONS

The Model 1008 is commonly used in five types of applications:

4-wire/full duplex/point-to-point, 4-wire/half duplex/point-to-point,

2-wire/half duplex/point-to-point, 4-wire/multipoint and 2-wire/multipoint.

The switch settings

generally

needed to configure the Model 1008 for

these applications are shown in the table below. Note: Do not change

switch settings until you have

carefully

read Section 3.1.

S1-1: Rcv Impedance ON ON ON Master - ON

Slaves - OFF

Last Slave - ON

S1-2: 2-wire/4-wire OFF OFF ON OFF ON

S1-3: 2-wire/4-wire OFF OFF ON OFF ON

S1-4: Echo OFF OFF OFF OFF OFF

S2-1: Carrier Control OFF ON ON Master-OFF ON

Slaves-ON

S2-2: RTS/CTS Delay ON ON ON OFF ON

S2-3: “Xmt Off” Imp. OFF OFF OFF OFF OFF

S2-4: “Xmt Off” Imp. OFF OFF OFF OFF OFF

TYPICAL MODEL 1008 APPLICATIONS

Point-to-Point

Switch

Settings

Multi-point

4W 2W 4W 2W4W HDX

4.0 INSTALLATION

Once the Model 1008 is properly configured, it is ready to connect

to your system. This section tells you how to properly connect the

Model 1008 to the twisted pair and EIA/TIA-574 interfaces, and how to

operate the Model 1008.

4.1 TWISTED PAIR CONNECTION

The Model 1008 supports 2-wire or 4-wire communication between

two or more EIA/TIA-574 devices at data rates to 115.2 Kbps. There

are two essential requirements for installing the Model 1008:

1. These units work in

pairs.

Therefore, you must have one Model

1008 at each end of a two twisted pair interface. In multipoint

environments, there must be one Model 1008 at the EIA/TIA-574

host and one at each EIA/TIA-574 terminal.

2. To function properly, the Model 1008 needs two twisted pairs of

metallic wire. These 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 1008 is available with several

different twisted pair interfaces: RJ-11 jack, RJ-45 jack, terminal blocks

with strain relief and dual modular jacks (for multipoint daisy-chaining).

4.1.1 TWISTED PAIR CONNECTION USING TERMINAL BLOCKS

If your application requires you to connect one or two pairs of bare

wires to the Model 1008, 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 the wires won't pull loose.

1. You should already have the case open for the configuration

procedure. If not, see Section 3.1.

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

XMT----------------------------------------------------RCV-

G ---------------------- G

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

RCV----------------------------------------------------XMT-

To Shield (Optional)

}One Pair

3.2 TYPICAL APPLICATIONS

The Model 1008 is commonly used in five types of applications:

4-wire/full duplex/point-to-point, 4-wire/half duplex/point-to-point,

2-wire/half duplex/point-to-point, 4-wire/multipoint and 2-wire/multipoint.

The switch settings

generally

needed to configure the Model 1008 for

these applications are shown in the table below. Note: Do not change

switch settings until you have

carefully

read Section 3.1.

S1-1: Rcv Impedance ON ON ON Master - ON

Slaves - OFF

Last Slave - ON

S1-2: 2-wire/4-wire OFF OFF ON OFF ON

S1-3: 2-wire/4-wire OFF OFF ON OFF ON

S1-4: Echo OFF OFF OFF OFF OFF

S2-1: Carrier Control OFF ON ON Master-OFF ON

Slaves-ON

S2-2: RTS/CTS Delay ON ON ON OFF ON

S2-3: “Xmt Off” Imp. OFF OFF OFF OFF OFF

S2-4: “Xmt Off” Imp. OFF OFF OFF OFF OFF

TYPICAL MODEL 1008 APPLICATIONS

Point-to-Point

Switch

Settings

Multi-point

4W 2W 4W 2W4W HDX

4.0 INSTALLATION

Once the Model 1008 is properly configured, it is ready to connect

to your system. This section tells you how to properly connect the

Model 1008 to the twisted pair and EIA/TIA-574 interfaces, and how to

operate the Model 1008.

4.1 TWISTED PAIR CONNECTION

The Model 1008 supports 2-wire or 4-wire communication between

two or more EIA/TIA-574 devices at data rates to 115.2 Kbps. There

are two essential requirements for installing the Model 1008:

1. These units work in

pairs.

Therefore, you must have one Model

1008 at each end of a two twisted pair interface. In multipoint

environments, there must be one Model 1008 at the EIA/TIA-574

host and one at each EIA/TIA-574 terminal.

2. To function properly, the Model 1008 needs two twisted pairs of

metallic wire. These 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 1008 is available with several

different twisted pair interfaces: RJ-11 jack, RJ-45 jack, terminal blocks

with strain relief and dual modular jacks (for multipoint daisy-chaining).

4.1.1 TWISTED PAIR CONNECTION USING TERMINAL BLOCKS

If your application requires you to connect one or two pairs of bare

wires to the Model 1008, 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 the wires won't pull loose.

1. You should already have the case open for the configuration

procedure. If not, see Section 3.1.

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

XMT----------------------------------------------------RCV-

G ---------------------- G

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

RCV----------------------------------------------------XMT-

To Shield (Optional)

}One Pair

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