Patton electronics 1088/K Manuel utilisateur

USER

MANUAL

MODEL 1088/K

mDSL Modem with fixed

G.703/G.704 Interface

Part# 07M1088/K-C

Doc# 033141UC

Revised 06/08/00

SALES OFFICE

(301)975-1000

TECHNICAL SUPPORT

(301)975-1007

http://www.patton.com

An ISO-9001

Certified

Company

TTAABBLLEEOOFFCCOONNTTEENNTTSS

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 Configuring the Hardware DIP Switches

3.1.1 Configuration DIP Switch Set ÒS1Ó

3.1.2 Configuration DIP Switch Set ÒS2Ó

3.2 NetLink Plug ÔnÕ Play

4.0 Installation ...........................................................................13

4.1 Connect G.703 Network

4.2 Jumper Configuration

4.2.1 Connect Twisted Pair (120 ohm) to G.703 Network

4.2.2 Connect Dual Coaxial Cable (75 ohm) to G.703 Network

4.3 Connect Twisted Pair DSL Interface

4.4 Power Connection

5.0 Operation.............................................................................18

5.1 Power-Up

5.2 LED Status Monitors

5.3 Test Modes

5.3.1 Overview

5.3.2 Loops and Patterns

5.3.3 Using the V.52 (BER) Test Pattern Generator

Appendix A - Specifications ........................................................29

Appendix B - Factory Replacement Parts and Accessories.......30

Appendix C - Transmission Distance Chart................................31

Appendix D - Led Descriptions....................................................32

11..00WWAARRRRAANNTTYYIINNFFOORRMMAATTIIOONN

Patton Electronics warrants all Model 1088 components to be

free from defects, and willÑat our optionÑrepair or replace the prod-

uct 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 1088 generates and uses radio frequency energy, and

if not installed and used properlyÑthat is, in strict accordance with the

manufacturer's instructionsÑmay cause interference to radio and tele-

vision reception. The Model 1088 has been tested and found to com-

ply 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 interfer-

ence will not occur in a particular installation. If the Model 1088 does

cause interference to radio or television reception, which can be deter-

mined by disconnecting the unit, the user is encouraged to try to cor-

rect the interference by one or more of the following measures: mov-

ing the computing equipment away from the receiver, re-orienting the

receiving antenna and/or plugging the receiving equipment into a dif-

ferent 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 European Union

(EU). A Certificate of Compliance is available by contacting 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:

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 1088. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

22..00GGEENNEERRAALLIINNFFOORRMMAATTIIOONN

Thank you for your purchase of this Patton Electronics product.

This product has been thoroughly inspected and tested and is warrant-

ed for One Year parts and labor. If any questions or problems arise

during installation or use of this product, please do not hesitate to con-

tact Patton Electronics Technical Support at (301) 975-1007.

2.1 FEATURES

¥ Multi-Rate Symmetric DSL

¥ Supports DTE Speeds from 64 kbps to 2.048 Mbps

¥ 2-wire Operation

¥ 120 ohm (RJ-45) and 75 ohm (dual coax) G.703/G.704 termina-

tions

¥ 2Mbps G.703 Clear Channel (Unframed) or nx64 G.704 (Framed)

Operation

¥ SNMP Manageable as the CP (Customer Premises) modem when

connect to Model 1095RC

¥ Selectable AMI or HDB3 Line Coding

¥ LED indicators for DSL Link, E1/FE1 Link, LOS, TM, ER and NS

2.2 DESCRIPTION

The Patton Electronics mDSL Rocket offers the ability to extend

G.703/G.704 service over Multi-rate Symmetric Digital Subscriber Line

technology. Multi-rate DSL offers the ability to deliver the maximum bit

rate that a twisted pair line can accommodate. Now, ISPs, CLECs and

corporate enterprises can terminate G.703/G.704 (E1) service and

either extend nx64 G.703/G.704 service or provide a remote serial

connection to a router or switch when paired with Model 1088/C (V.35)

or 1088/D (X.21).

As Model 1088/K receives data from E1 line, it extracts the E1

clock, and delivers smooth clock and data to the remote DSL modem

over a two-wire DSL span. In a network extension application, a

remote 1088/K delivers nx64kbps to 2 Mbps G.703 data and clocking

to device with an E1 interface. In a network termination application,

a remote Model 1088/C or 1088/D accepts this data and clock stream

and provides nx64kbps data to CPE with a V.35, or X.21 interface.

As a symmetric DSL NTU, Model 1088/K offers the same data

rates in both directions over a single pair of regular telephone lines

using Carrierless Amplitude and Phase (CAP) modulation. Equipped

with both 75 ohm (dual coax) and 120 ohm (RJ-45), the Model 1088/K

is easy to configure and install. DSL line connection is via RJ-45 jack.

Standard versions of Model 1088 are powered by a 100/230VAC

(Universal) supply. A DC power supply option supports any DC input

between 36-72VDC.

IMPORTANT: The Model 1088 is equipped with flash

upgrade. Please refer to Patton website, or contact Technical

Support for the latest version of the software.

NOTE: Packages received without an RMA number will not be

accepted.

33..00CCOONNFFIIGGUURRAATTIIOONN

The Model 1088/K is equipped with two sets of eight DIP switches,

which allow configuration of the unit for a wide variety of applications.

This section describes switch locations and explains all possible con-

figurations.

3.1 CONFIGURING THE HARDWARE DIP SWITCHES

The 16 external switches are grouped into two eight-switch sets,

and are externally accessible from the underside of the Model 1088/K

(See Figure 1, below).

The two sets of DIP switches on the underside of the Model 1088/K

will be referred to as S1 and S2. As Figure 2 shows, the orientation of

all DIP switches is the same with respect to ÒONÓ and ÒOFFÓ positions.

Figure 2. Close Up of Configuration Switches (all sets are identical in appearance)

Figure 1. Underside of Model 1088/K, Showing Location of DIP Switches

Front

Rear

Off

3.1.1 Configuration DIP Switch Set ÒS1Ó

Switches S1-1 through S1-8 may be used to configure CO/CP

operation, line framing and coding, CRC-4 operation, and DTE initiated

loop diagnostics. Default settings of S1 Switches are shown in the

table below.

Switch S1-1: CO/CP

Use Switch S1-1 configure the CO (located at the Central Office or

or G.703/G.704 demarcation point) or CP (located at the Customer

Premises) mode of the 1088/K.

S1-1 CO/CP Mode

Off CO = located at the Central Office

On CP = located at the Customer Premises

CO/CP Configuration:

The Model 1088/K does not use clock mode settings as described

in other Patton mDSL products. Instead, the Model 1088/K will

always recover the clocking from the G.703/4 network and use this

clock to send data across the DSL span to the remote DSL

modem, which will use the incoming to send data out to G.703/4

network. Therefore, one unit must be set for CO mode (located at

the G.703 demarcation), and the other unit must be set for CP

mode (located at the customer premises). This type of clocking

method was employed for two reasons:

1) To allow two independent networks to use the modems as inde-

pendent clocking paths.

2) To allow the user to independently specify the timing source for

the network based on external equipment.

Position Function

S1-1 CO/CP Setting On CP Mode

S1-2 Line Coding Off HDB3

S1-3 CRC-4 Enable Off Disabled

S1-4 Reserved Off

S1-5 Reserved On

S1-6 Reserved Off

S1-7 Reserved On

S1-8 Reserved Off

Factory Default

S1 SUMMARY TABLE

OFF

CO/CP and Using the 1088/K with other Patton mDSL modems

Other Patton mDSL modems allow the option of specifying the

clock mode, but not the CO/CP designation. This is already done inter-

nally within the unit. When connecting a 1088/K to an mDSL modem

(e.g. Model 1088/C, 1088/D or 1095) other then a Model 1088/K,

determine the source of the system clock and then determine the

Model 1088/Ks CO/CP designation based upon the following chart.

*Reminder: In each DSL modem pairing, one unit must act as the CO unit, the other must

act as the CP unit.

Switch S1-2: Line Coding

Use Switch S1-2 to configure the G.703/G.704 network line cod-

ing. The line coding must be the same line coding prescribed by the

NAP (Network Access Provider). Most applications will use HDB3

SW4 Line Framing & Coding

Off HDB3

On AMI

Line Coding Options:

High Density Bipolar 3 (HDB3): In HDB3 coding, the transmitter

deliberately inserts a bipolar violation when excessive zeros in the

data stream are detected. The receiver recognizes these special

violations and decodes them as zeros. This method enables the

network to meet minimum pulse density requirements. Use HDB3

unless AMI is required in your application .

Alternate Mark Inversion (AMI): AMI coding does not inherently

account for ones density. To meet this requirement, you should

ensure that the data inherently meets pulse density requirements.

Switch S1-3: CRC-4 Multiframe

CRC-4 Multiframe uses Time Slot zero to carry CRC-4 informa-

tion. When CRC-4 is enabled (ON), the unit synchronizes to the CRC-

4 multi-frame protocol.

S1-3 Option

Off Disabled

On Enabled

NOTE: When the DTE rate is set to 2048 Kbps, Model 1088/K

transmits user data on all 32 timeslots, ignoring framing informa-

tion. In this case, Switch S1-3 will need to be in the disabled (Off)

position.

Switches S1-4, S1-5, S1-6, S1-7 and S1-8: Reserved

Switches S1-4, S1-5, S1-6, S1-7, S1-8 are reserved for factory

usage and must remain in the default configuration, except when using

the Netlink Plug-and-Play feature.

S1-4 S1-5 S1-6 S1-7 S1-8 Default Setting

Off On Off On Off Only Valid Setting

109X 109X

MDSL Modem Clock

Mode

External

Internal

Receive Recover

MDSL Modem Unit

Designation

External

Internal

Receive Recover

1088/K setting required

3.1.2 Configuration DIP Switch Set ÒS2Ó

Use the eight DIP Switches in Switch S2 to enable the DTE con-

nection rate. The following table summarizes default positions of DIP

Switch S3. Detailed descriptions of each switch follow the table.

Switch S2-1: DTE Rate

Use Switch S2-1 through S2-6 to set the DTE bit rate.

S2-1 S2-2 S2-3 S2-4 S2-5 S2-6 DTE Rate (kbps)

Off Off On On On On 64

On On Off On On On 128

Off On Off On On On 192

On Off Off On On On 256

Off Off Off On On On 320

On On On Off On On 384

Off On On Off On On 448

On Off On Off On On 512

Off Off On Off On On 576

On On Off Off On On 640

Off On Off Off On On 704

On Off Off Off On On 768

Off Off Off Off On On 832

On On On On Off On 896

Off On On On Off On 960

On Off On On Off On 1024

Off Off On On Off On 1088

On On Off On Off On 1152

Off On Off On Off On 1216

On Off Off On Off On 1280

Off Off Off On Off On 1344

On On On Off Off On 1408

Off On On Off Off On 1472

On Off On Off Off On 1536

On On Off Off Off On 1600

Off On Off Off Off On 1664

On Off Off Off Off On 1728

Off Off Off Off Off On 1792

On On On On On Off 1856

Off On On On On Off 1920

On Off On On On Off 1984

Off Off On On On Off 2048

Switch S2-7: Reset Software Defaults

Switch S3-7 allows the user to reset the software configured facto-

ry defaults. This will only be needed when using the Model 1001MC to

SNMP manage your units. For more information, please refer to the

Model 1001MC Operations Manual.

S3-7 Setting

On Normal Operation

Off Reset

Switch S2-8: Transmit Data (TD) Sampling Point

Switch 3-8 controls the Transmit Data (TD) sampling point.

S3-8 Setting Description

On Normal TD sampled on the falling

edge of the 1088 Transmit

Clock (TC)

Off Invert TD sampled on the rising

edge of the 1088 Transmit

Clock.

S2 SUMMARY TABLE

Position Function Factory Default

S2-1 DTE Rate Off

S2-2 DTE Rate Off

S2-3 DTE Rate On

S2-4 DTE Rate On

S2-5 DTE Rate On

S2-6 DTE Rate Off

S2-7 Reset Software Defaults On Normal Operation

S2-8

Transmit Data Sample Point

On Normal Operation

}

2048 kbps

NOTE: Based on the DTE rate chosen, the Model 1088/K will

automatically select the optimum line rate for the distance. This

selection is based on the lowest line rate that will support the

DTE rate.

3.2 NETLINK PLUG-AND-PLAY

The NetLink Plug-and-Play feature allows ISPs, carriers and PTTs

to quickly upgrade the link speed for a customer without requiring a

visit to re-configure the Customer Premise (CP) Model 1088. This fea-

ture also allows service providers to set up all of the configurations at

the Central Office (on the rack cards) before installing the stand alone

units, saving time spent configuring or re-configuring DIP switches.

The NetLink Plug-and-Play feature allows the user to configure the

DTE rate (bandwidth allocation, see Switches S2-1 through S2-6) of

the CP unit from the rack card at the Central Office (CO). The stand

alone unit at the Customer Premise (CP) site will automatically config-

ure itself to the DTE rate (Bandwidth Allocation) of the rack card.

Other configuration parameters remain in the default setting.

Follow the instructions below to activate NetLink Plug-and-Play

between CO (Model 1095RC and CP (Model 1088) units:

1. Set the Model 1095RC (CO) to either Internal or External

clocking mode as defined by the application.

2. Set the Model 1088 (CP) to ÒNetLink Plug-and-Play CPÓ by

setting S1 and S2 DIP switches in the ON position as

described in Figure 3, below.

When the CO and CP units connect over DSL, the CP will enter a pre-

defined default configuration (Receive Recovered Clocking). During

the negotiation process between the units, the CO unit will configure

the DTE rate/line rate on the CP unit as defined by the settings of the

CO unit. When additional bandwidth is required, only the configuration

of the CO unit should be changed. This feature gives ISPs, LECs and

PTTs the ability to provision bandwidth on an as needed basis to cus-

tomers.

The NetLink Plug and Play application will also work in an

HTTP/SNMP managed system using the NetLink Model 1001MC

SNMP agent card with 1095RC cards installed in PattonÕs 2U rack sys-

tem. In this application, the system administrator can configure the

entire rack through the Network Management Station (NMS) before the

stand alone (CP) units are installed. For more information on the

HTTP/SNMP management, please refer to the Model 1001MC

Operations Manual.

1095RC

(CO)

1088

(CP)

DIP Switches all in ON position

DIP Switches or NMS configured

according to specific application

requirements

DSL Span

NOTE: NetLink Plug-and-Play is only available when

using a rack-mounted NetLink Model 1095RC as the

CO unit.

Figure 3. Typical NetLink Plug-and-Play Application

44..00IINNSSTTAALLLLAATTIIOONN

Once the Model 1088/K is properly configured, it is ready to con-

nect to the twisted pair interface, to the serial port, and to the power

source. This section describes how to make these connections.

4.1 CONNECT G.703 NETWORK

The Power, G.703/G.704 and DSL Line connections are located

on the rear panel of the Model 1088/K. Figure 4, below, shows the

location of each of these ports.

4.2 JUMPER CONFIGURATION

The Model 1088/K has four jumpers (two position headers): JP1,

JP4, JP5, and JP6. These jumpers are used to select input or output

impedance matching between the module, external line, and to employ

either BNC or RJ-45 interface. Figure 5 (below) shows the top view of

the printed circuit board (PCB) and the location of the jumpers.

The following is a description of the jumper settings with respect to

the rear panel connectors.

1. For a 75 Ohm connection (coax) insert JP1, JP4, JP5, and JP6

(default)

2. For a 120 Ohm connection (RJ45) remove JP1 and JP4, JP5, and

JP6.

4.2.1 Connect Twisted Pair (120 ohm) to G.703 Network

The Model 1088/K is equipped with a single RJ-48C jack for con-

nections to a 120 ohm twisted pair G.703/G.704 network interface. If

your G.703/G.704 network terminates via RJ-48C, use the diagram

below and the table on the following page to make the proper connec-

tions. The connector pinout and signals are shown in Figure 6, below.

Use the following connection diagram to connect the 120 ohm

G.703/G.704 network channel.

RJ-45 Cable (8-Wire)

1088/K G.703/G.704

SIGNAL PIN# NETWORK SIGNAL

RX+ 1-----------------------TX+

RX- 2-----------------------TX-

TX+ 5-----------------------RX+

TX- 4-----------------------RX

Shield 3-----------------------Shield

Shield 6-----------------------Shield

Figure 4. Model 1088/K Rear Panel

Figure 6: 120 Ohm RJ-48C G.703 Interface

(No Connection) 8

(No Connection) 7

(No Connection) 6

(TX+) 5

(TX-) 4

(No Connection) 3

(RX-) 2

(RX+) 1

G.703/G.704 Terminations DSL Line

Power

Figure 5. Top view of 1088/K, location of JP1, JP4, JP5, and JP6

RX TX

4.2.2

Connect Dual Coaxial Cable (75 ohm) to G.703 Network

The Model 1088/K is also equipped with dual female BNCs (TX

and RX) for connection to a 75 ohm dual coax G.703 network inter-

face. If your G.703/G.704 network terminates via dual coaxial cable,

use the diagram below to make the proper connections. The connec-

tor pinout and signals are shown in Figure 7, below.

NOTE: The outer conductor of the coax cables are isolated

from system earth ground.

4.3 CONNECT TWISTED PAIR DSL INTERFACE

The Model 1088/K supports communication between two DTE

devices at distances to 5 miles (8 km) over 24 AWG (.5mm) twisted

pair wire. Two things are essential:

1. These units operate as a pair. Both units at the end of the

twisted pair DSL span must be set for the same DTE rate.

2. To function properly, the Model 1088 needs one

twisted pair of metallic wire. This twisted pair must be

unconditioned, dry, metallic wire, between 19 (.9mm) and 26

AWG (.4mm) (the higher number gauges will limit distance).

Standard dial-up telephone circuits, or leased circuits that run

through signal equalization equipment, or standard, flat modu-

lar telephone type cable, are not acceptable.

The RJ-45 connector on the Model 1088Õs twisted pair interface is

polarity insensitive and is wired for a two-wire interface. The signal/pin

relationships are shown in Figure 8.

4.4 POWER CONNECTION

Universal AC Power (100-240VAC)

The Model 1088 uses a 5VDC, 2A universal input 100-240VAC,

power supply (center pin is +5V). The universal input power supply

has a male IEC-320 power entry connector. This power supply con-

nects to the Model 1088 by means of a barrel jack on the rear panel.

Many international power cords are available for the universal power

supply (Please refer to Appendix B for country-specific power cords.

The Model 1088 powers up as soon as it is plugged into an AC

outlet--there is no power switch.

120 VAC Power (US)

The 100-132 VAC adapter supplied with the U.S. version of the

Model 1088 is a wall mount type and may be plugged into any

approved 120 VAC wall jack.

230 VAC Power (International)

The 230 VAC adapter supplied with the International version of the

Model 1088 is a wall mount type and may be plugged into any

approved 230 VAC wall jack.

DC Power

The 36-60 VDC DC to DC adapter supplied with the DC version of

the Model 1088 plugs in a DC source (nominal 48VDC) and plugs into

the barrel power supply jack on the rear of the 1088/K. Please refer to

Figure 9 to make the proper connection.

Figure 8. Model 1088 twisted pair line interface.

1 (N/C)

2 (N/C)

3 (N/C)

4 (2-Wire TIP)

5 (2-Wire RING)

6 (N/C)

7 (N/C)

8 (N/C)

(Data TO

G.703/G.704

Network)

(Data FROM

G.703/G.704

Network)

Network

Figure 7: 75 Ohm Dual Coaxial G.703 Interface

55..00OOPPEERRAATTIIOONN

Once the Model 1088 is properly configured and installed, it

should operate transparently. This sections describes power-up, read-

ing the LED status monitors, and using the built-in loopback test

modes.

5.1 POWER-UP

To apply power to the Model 1088, first be sure that you have read

Section 4.3, and that the unit is connected to the appropriate power

source.

5.2 LED STATUS MONITORS

The Model 1088 features six front panel LEDs that monitor power,

the DTE signals, network connection and test modes. Figure 10

(below) shows the front panel location of each LED. Following Figure

10 is a description of each LEDs function. See also

APPENDIX E.

DSL Link (Active Green) Solid green (On) indicates that the

end to end DSL Framer Link is up, signifying that

the link across the DSL span is active. The DSL

Link LED is Off when the link is down.

E1/FE1 Link (Active Green) Solid green (On) indicates a valid

E1 connection.

LOS (Active Red) The Loss of Sync indicates that the

unit has lost synchronization with the incoming sig-

nal. This may happen when there is a framing mis-

match or a loss of signal. In unframed mode, the

LOS LED monitors the status of the transmit clock.

NS (Active Red) The No Signal LED glows red to

indicate that the local Model 1088 is not connected

with the remote Model 1088.

Figure 10. Model 1088/K Front Panel

Figure 9. Connecting DC Power to the 48V-PSM DC Power Supply.

-Vin To Power

Supply Jack

To -48VDC

Source

+Vin

WARNING! There are no user-serviceable parts in the

power supply section of the Model 1088. Fuse replacement

should only be performed by qualified service personnel.

Contact Patton Electronics Technical support at

(301)975-

1007

, via our web site at http://www.patton.com, or by e-mail

at [email protected], for more information.

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