Patton electronics 1004ABRC Bedienungsanleitung

USER

MANUAL

MODEL 1004ABRC

High Speed,Multipoint

Short Range Modem:

Rack Mount Card

SALES OFFICE

(301) 975-1000

TECHNICAL SUPPORT

(301) 975-1007

http://www.patton.com

Part# 07M1004ABRC-A

Doc# 047053UA

Revised 09/02/99

CERTIFIED

An ISO-9001

Certified Company

1 2

TABLE OF CONTENTS

Section Page

1.0 Warranty Information .............................................................2

1.1 Radio and TV Interference

1.2. CE Notice

1.3 Service

2.0 General Information...............................................................4

2.1 Features

2.2 Description

3.0 Configuration..........................................................................5

3.1 Front Card Configuration

3.1.1 Switch Setting - Modem A

3.1.2 Switch Setting - Modem B

3.2 Rear Card Configuration

3.2.1 Rear Card Strap Settings

4.0 Installation ...........................................................................14

4.1 The Model 1000R16 Rack Chassis

4.1.1 The Rack Power Supply

4.2 Installing the Model 1004ABRC into the Chassis

4.3 RS-232 Connection

4.4 Twisted Pair Connection

4.4.1 Point-to Point Twisted Pair Connection

4.4.2 Multipoint Twisted Pair Connection

5.0 Operation.............................................................................19

5.1 LED Status Monitors

5.2 Power-Up

Appendix A - Specifications........................................................20

Appendix B - Cable Recommendations......................................21

Appendix C - Factory Replacement Parts..................................22

Appendix D - Interface Pin Assignments....................................23

1.0 WARRANTY INFORMATION

Patton Electronics warrants all Model 1004ABRC 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 modifi-

cation. 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 consequen-

tial 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 1004ABRC generates and uses radio frequency ener-

gy, 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 1004ABRC has been tested and

found to comply with the limits for a Class A computing device in accor-

dance with the specifications in Subpart J of Part 15 of FCC rules,

which are designed to provide reasonable protection from such interfer-

ence in a commercial installation. However, there is no guarantee that

interference will not occur in a particular installation. If the Model

1004ABRC 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 interfer-

ence by one of the following measures: moving the computing equip-

ment 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).

In the event the user detects intermittent or continuous product mal-

function due to nearby high power transmitting radio frequency equip-

ment, the user is strongly advised to take the following steps: use only

data cables with an external outer shield bonded to a metal or metal-

ized connector; and, configure the rear card as shown in section 3.2.1

of this manual.

3 4

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.

1.3 SERVICE

All warranty and non-warranty repairs must be returned freight pre-

paid and insured to Patton Electronics. All returns must have a Return

Materials Authorization number on the outside of the shipping contain-

er.This number may be obtained from Patton Electronics Technical

Support:

Tel: (301) 975-1007

Email: [email protected].

www: http://www.patton.com

Patton Electronics' technical staff is also available to answer any

questions that might arise concerning the installation or use of your

Model 1004ABRC. 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 warrant-

ed for OneYear parts and labor. If any questions during installation or

use of the 1004ABRC, contact Patton Electronics Technical Support at

(301) 975-1007.

2.1 FEATURES

• Convenient rack card features twoshort range modems

• Data rates to 115.2 Kbps

• Multi-point Operation on Data Transitions -- No need for

Hardware Control Signals

• Supports up to 50 multipoint drops in a polling environment

• Passes transmit & receive data

• Variable high/low impedance settings

• Operates with or without local “echo”

• Features 6 easy-to-read LEDs

• Silicon Avalanche Diode surge protection

• Fits conveniently in Patton’s rack chassis

2.2 DESCRIPTION

The Model 1004ABRC high speed, multipoint short range modem

rack card is a

dual

rack card incorporating two short range modems.

Both units support asynchronous data rates to 115.2 Kbps over 1 or 2

twisted pairs and support distances to 4000 feet (19 AWG @19.2

kbps). In addition, Model 1004ABRC’s unique data control feature

allows it to be used in multi-point environments without the use of hard-

ware control signals.

The Model 1004ABRC can handle up to 50 terminal drops in a

multipoint polling environment. Using transitions on the data line to

handle line contention, the Model 1004ABRC can be used in environ-

ments that need multi-port bus contention, but do not have control sig-

nals such as RTS or DTR. The Model 1004ABRC may be configured

for high or low impedance operation, and the unit can operate with or

without “echo”.

Filling one function card slot on Patton’s Model 1000R16 rack

chassis, the Model 1004ABRC is available with RJ-11 or RJ-45 rear

interface cards. For workgroup and desktop communications, the

Model 1004ABRC also fits in Patton’s 2, 4 and 8 slot ClusterBoxes™.

The combination of rack mount, ClusterBox™ and self-powered units

provides a completely integrated “networking” solution.

NOTE: Packages received without an RMA number will not be

accepted.

5 6

3.0 CONFIGURATION

This section describes the location and orientation of the Model

1004ABRC's configuration switches, provides detailed instructions on

setting each switch and describes the settings for each of the rear con-

nection cards.

3.1 FRONT CARD CONFIGURATION

The Model 1004ABRC front card houses two short hauls–Modem

A and Modem B–

each

using two sets of DIP switches. The locations

of these switches are shown in Figure 1 (below). These switches are

accessible when the card is slid out of the rack chassis. Once config-

ured, the Model 1004ABRC is designed to operate transparently, with-

out need for frequent re-configuration.

Each of the DIP switches on the Model 1004ABRC function card is

a 4-position switch. Figure 2 (below) shows the On/Off orientation of

these switches. Use a small screw driver or similar instrument to set

each individual switch.

3.1.1 SWITCH SETTINGS - MODEM “A”

DIP switches S1 and S2 configure short range Modem A on the

Model 1004ABRC front card. The tables below provide an overview of

Modem A switch settings, including factory default settings. Following

the tables is a descriptions of each switch’s function.

SWITCH SET “S1”

DIP switch S1 is used to configure receive impedance,

RTS/CTS delay, carrier control 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 indi-

vidual switch.

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 16K Ohms. 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 (16K Ohm typical)

S1-2: RTS/CTS Delay

The setting for switch S1-2 determines the amount of delay

between the time the Model 1004ABRC “sees” RTS and when it turns

on CTS. Note: RTS/CTS Delay setting should be based upon trans-

mission timing.

S1-2 Setting

On 8 msec

Off no delay

Figure 1. Model 1004ABRC Card, showing location of configuration switches.

OFF

Figure 2. Close-up of DIP switches, showing ON/OFF orientation.

1234

SWITCH S1 SUMMARYTABLE (factory defaults in bold)

Position Function ON Position OFF Position

S1-1 RX Impedance 120 Ohm 16K Ohm

S1-2 RTS/CTS Delay 8 msec No Delay

S1-3 Reserved - Default Setting

S1-4 Echo Mode Echo ON Echo OFF

7 8

S1-3: Reserved

Switch S1-3 is reserved and

must remain in the OFF position

S1-3 Setting

On Not a Valid Setting

Off Default Setting

S1-4: Echo Mode

The setting for switch S1-4 determines whether the Model

1004ABRC echoes data back to the transmitting device (half-duplex

mode only).

S1-4 Setting

On Echo On

Off Echo Off

SWITCH SET “S2”

DIP switch S2 is used to configure transmit impedance, and

2-wire/4-wire operations. The summary table below shows the factory

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

detailed description of each individual switch.

S2-1 and S2-2: “Transmit Off” Impedance

Switches S2-1 and S2-2 are set together to determine whether the

receiving device “sees” the impedance of the Model 1004ABRC’s trans-

mitter 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.

S2-1 S2-2 Setting

On On Intermediate Impedance

Off Off High Impedance

S2-3 and S2-4: 2-wire/4-wire Modes

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

Model 1004ABRC 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

3.1.2 SWITCH SETTINGS - MODEM “B”

DIP switches S3 and S4 configure short range Modem B on the

Model 1004ABRC front card. The tables below provide an overview of

Modem A switch settings, including factory default settings. Following

each figure is a detailed description of each switch’s function.

SWITCH SET “S3”

DIP switch S3 is used to configure receive impedance, RTS/CTS

delay and “echo” enable/disable. The summary table below shows the

factory default settings for switch S3.

Following the summary table is a detailed description of each individual

switch.

SWITCH S2 SUMMARYTABLE (factory defaults in bold)

Position Function ON Position OFF Position

S2-1* TX Impedance Intermediate High

S2-2* TX Impedance Intermediate High

S2-3* 2-Wire/4-Wire 2-Wire 4-Wire

S2-4* 2-Wire/4-Wire 2-Wire 4-Wire

*Note: Switches S2-1 and S2-2 must be switched simultaneously.

Switches S2-3 and S2-4 must be switched simultaneously. SWITCH S3 SUMMARYTABLE (factory defaults in bold)

Position Function ON Position OFF Position

S3-1 RX Impedance 120 Ohm 16K Ohm

S3-2 RTS/CTS Delay 8 msec No Delay

S3-3 Reserved - Default Setting

S3-4 Echo Mode Echo ON Echo OFF

9 10

S3-1: Receive Impedance

The setting for switch S3-1 selects the impedance of the input

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

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

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

S3-1 Setting

On Low (120 Ohm)

Off High (16K Ohm typical)

S3-2: RTS/CTS Delay

The setting for switch S3-2 determines the amount of delay

between the time the Model 1004ABRC “sees” RTS and when it turns

on CTS. Note: RTS/CTS Delay setting should be based upon trans-

mission timing.

S3-2 Setting

On 8 msec

Off no delay

S3-3: Reserved

Switch S3-3 is reserved and must remain in the OFF position.

S3-3 Setting

On Not a Valid Setting

Off Default Setting

S3-4: Echo Mode

The setting for switch S3-4 determines whether the Model

1004ABRC echoes data back to the transmitting device (half-duplex

mode only).

S3-4 Setting

On Echo On

Off Echo Off

SWITCH SET “S4”

DIP switch S4 is used to configure transmit impedance, and

2-wire/4-wire operations. The summary table below shows the factory

default settings for switch S4. Following the summary table is a

detailed description of each individual switch.

S4-1 and S4-2: “Transmit Off” Impedance

Switches S4-1 and S4-2 are set together to determine whether the

receiving device “sees” the impedance of the Model 1004ABRC’s trans-

mitter 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.

S4-1 S4-2 Setting

On On Intermediate Impedance

Off Off High Impedance

S4-3 and S4-4: 2-wire/4-wire Modes

Switches S4-3 and S4-4 are set together to determine whether the

Model 1004ABRC is in 2-wire or 4-wire operating mode. Note: 2-wire

mode is half-duplex only.

S4-2 S4-3 Setting

On On 2-wire mode

Off Off 4-wire mode

SWITCH S4 SUMMARYTABLE (factory defaults in bold)

Position Function ON Position OFF Position

S4-1* TX Impedance Intermediate High

S4-2* TX Impedance Intermediate High

S4-3* 2-Wire/4-Wire 2-Wire 4-Wire

S4-4* 2-Wire/4-Wire 2-Wire 4-Wire

*Note: Switches S4-1 and S4-2 must be switched simultaneously.

Switches S4-3 and S4-4 must be switched simultaneously.

11 12

3.2 REAR CARD CONFIGURATION

The Model 1004ABRC has two interface card options: the 1Q11

(which comes equipped with two RJ-11 ports and two RJ-45 ports) and

the 1Q45 (which comes equipped with four RJ-45 ports). Figure 3

(below) illustrates these two different rear interface options.

Prior to installation, you should examine the rear card you have

selected and ensure that it is suitable for your application. Each rear

card is configured by setting straps on the PC board. Section 3.4.1

describes the strap locations and settings for each card.

3.2.1 REAR CARD STRAP SETTINGS

Figure 4 (below) shows the strap locations for the 1Q11 and the

1Q45 rear cards. These straps determine various grounding character-

istics for the RS-232 and twisted pair lines.

The table below provides a summary of the strap functions for

both of the rear cards. Following the table is a description of each

strap's function.

Line A Shield & Line B Shield (JB2 & JB4)

This strap pertains to the line interface. In the connected (closed)

position, the strap links RJ-11 pins 1 and 6 (RJ-45 pins 2 and 7) to

frame ground. These pins can be used as connections for the twisted

pair cable shield. In the open (disconnected) position, pins 1 and 6 (or

2 and 7) remain connected, but are “lifted” from frame ground.

JB2

Position 1&2 = Line A Shield Connected

Position 2&3 = No Shield

JB4

Position 1&2 = Line B Shield Connected

Position 2&3 = No Shield

SGND & FRGND (JB5)

In the connected (closed) position, this strap links signal ground

and frame ground. In the open (disconnected) position, pin 1 is “lifted”

from frame ground.

JB5

Position 1&2 = SGND and FRGND Connected

Position 2&3 = SGND and FRGND Not Connected

1Q11 1Q45

RJ-45

RJ-11

RJ-45

Figure 3. Model 1004ABRC interface card options

Twisted Pair Line

Connection

Twisted Pair

Line Connection

RS-232

Connection

RS-232

Connection

}

123

(Unit A)

JB2

JB4

JB5

JB6

JB7

(Unit B)

(Unit A)

(Unit B)

Twisted Pair Line

Connection

RS-232

Connection

}

Figure 4. Strap locations for both rear cards

Strap Position 1&2 Position 2&3

JB2 Line A Shield No Shield†

JB4 Line B Shield No Shield†

JB5 SGND & FRGND Open†

JB6 DTE A DSR†N/A

JB7 DTE B DSR†N/A

INTERFACE CARD STRAP SUMMARY TABLE #1

13 14

DTE as DSR or RI (JB6 & JB7)

Because this rear card is designed to function in more applications

than the Model 1004ABRC, this jumper must be installed only in one

position. Place the jumper across pins 1&2 so that the terminal (DTE)

sees DSR as high when the DTE raises DTR. The other positions,

across pins 2&3, are for Ring Indicate as defined by EIA/TIA-561. The

RI function is irrelevant (and on the Model 1004ABRC is also discon-

nected) and can cause improper operation if the jumper is installed

incorrectly.

JB6 & JB7

Position 1&2 = DSR

Position 2&3 = N/A

4.0 INSTALLATION

This section describes the functions of the Model 1000R16 rack

chassis, tells how to install front and rear Model 1004ABRC cards into

the chassis and provides diagrams for wiring up the interface connec-

tions correctly.

4.1 THE MODEL 1000R16 RACK CHASSIS

The Model 1000R16 Rack Chassis (Figure 5) has sixteen short

range modem card slots, plus its own power supply. Measuring only

3.5” high, the Model 1000R16 is designed to occupy only 2U in a 19”

rack. Sturdy front handles allow the Model 1000R16 to be extracted

and transported conveniently.

4.1.1 THE RACK POWER SUPPLY

The power supply included in the Model 1000R16 rack uses the

same mid-plane architecture as the modem cards. The front card of

the power supply slides in from the front, and the rear card slides in

from the rear. They plug into one another in the middle of the rack.

The front card is then secured by thumb screws and the rear card by

conventional metal screws.

Figure 5. Model 1000R16 Rack Chassis with power supply

WARNING! There are no user-serviceable parts in the

power supply section of the Model 1000R16. Voltage set-

ting changes and fuse replacement should only be per-

formed by qualified service personnel. Contact Patton

ElectronicsTechnical support at (301)975-1007 for more

information.

15 16

Switching the Power Supply On and Off

The power switch is located on the front panel. When plugged in

and switched on, a red front panel LED will glow. Since the Model

1000R16 is a “hot swappable” rack,

it is not necessary for any cards to

be installed before switching on the power supply

. The power supply

may be switched off at any time without harming the installed cards.

4.2 INSTALLING THE MODEL 1004ABRC INTO THE CHASSIS

The Model 1004ABRC is comprised of a front card and a rear

card. The two cards meet inside the rack chassis and plug into each

other by way of mating 50 pin card edge connectors. Use the following

steps as a guideline for installing each Model 1004ABRC into the

Model 1000R16 rack chassis:

1. Slide the rear card into the back of the chassis along the metal

rails.

2. Secure the rear card using the metal screws provided.

3. Slide the front card into the front of the chassis. It should meet the

rear card when it's almost all the way into the chassis.

4. Push the front card

gently

into the card-edge receptacle of the rear

card. It should “click” into place.

5. Secure the front card using the thumb screws.

4.3 RS-232 CONNECTION

The RS-232 ports are always the

lower

ports on the interface card.

The 10-pin RJ-45 is pinned according Patton's Modified Modular

Interface Standard (based on the EIA/TIA-561Standard). For specific

interface pin-outs, please refer to the diagrams in Appendix D.

(continued)

The Model 1004ABRC is wired as a DCE (Data Communications

Equipment). Therefore, it wants to connect to a DTE (Data Termination

Equipment). If your RS-232 output device is a DTE, you may need to

use a special cable (such as a DB-25 to modular cable). If your

RS-232 output device is DCE, you will require a null modem connec-

tion. Call Patton Technical Support at (301) 975-1007 for specific

installation instructions.

4.4 TWISTED PAIR CONNECTION

The Model 1004ABRC operates half or full duplex over one or two

twisted pair. In

all

applications, the twisted pair wire must be 26 AWG

or thicker, unconditioned, dry, metallic wire. Both shielded and

unshielded wire yield favorable results.

4.4.1 POINT-TO-POINTTWISTED PAIR CONNECTION

The 6-position RJ-11 and 8-position RJ-45 jack options for the

Model 1004ABRC (always the

upper

jack on the rear interface card)

are prewired for a standard TELCO wiring environment. Connection of

a 2-wire or 4-wire twisted pair circuit between two or more Model

1004ABRCs requires a

crossover cable

as shown in the following

charts.

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

†Connection to ground is optional

NOTE: Please refer to the Model 1000RP Series User Manual

AC and DC Rack Mount Power Supplie

s for fuse and power card

replacement information.

NOTE: Since the Model 1000R16 chassis allows “hot swap-

ping” of cards, it is not necessary to power down the rack when

you install or remove a Model 1004ABRC.

NOTE: The Model 1004ABRC can only communicate in a

closed data circuit with another Model 1004ABRC. Dial-up ana-

log circuits, like those in a standard Hayes-type modem, are

not

acceptable.

For further information, see Appendix B.

17 18

When connecting two Model 1004ABRCs, 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

4.4.2 MULTIPOINT TWISTED PAIR CONNECTION

The Model 1004ABRC supports multipoint applications using a star

daisy chain topology (Section 3.0 describes proper multipoint configu-

ration). 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. The diagram below shows how

to wire the two-pair cables properly for a Model 1004ABRC star topolo-

gy. Note that the ground connection is not needed.

HOST FIRST SLAVE SECOND SLAVE

XMT+ RCV+ RCV+

XMT- RCV- RCV-

RCV+ XMT+ XMT+

RCV- XMT- XMT-

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