Patton electronics 1082/F Manuel utilisateur

USER

MANUAL

MODEL 1082/F

iDSL Modem with

G.703 Interface

SALES OFFICE

(301) 975-1000

TECHNICAL SUPPORT

(301) 975-1007

Part# 07M1082/F

Doc# 033171UA

Revised 10/8/02

An ISO-9001

Certiﬁed

Company

CERTIFIED

TABLE OF CONTENTS

1.0 Warranty Information ................................................................. 4

1.1 FCC Information ........................................................................... 4

1.2 CE Notice...................................................................................... 4

1.3 Service.......................................................................................... 5

2.0 General Information.................................................................... 6

2.1 Features........................................................................................ 6

2.2 Description.................................................................................... 6

2.3 1082 SNMP Management Solutions............................................. 7

HTTP/HTML Management ........................................................... 7

2.4 System Description....................................................................... 7

Applications and Associated Timing............................................. 8

Timing of Application 1: Network Loop Extension ................. 8

Timing of Application 2: Network Replacement ..................... 9

2.5 Timing Mode Selections ............................................................. 10

2.6 Operating MODE SELECTIONS ................................................ 11

3.0 Configuration ............................................................................ 12

3.1 Configuring the Hardware DIP Switches .................................... 12

Configuring DIP Switch S1......................................................... 13

SW1-1 Octet Function ........................................................ 14

SW1-2 Hardware/Software ................................................. 14

SW1-3 Front Panel Switch Function .................................. 14

SW1-4 SNMP Control ........................................................ 14

SW1-5 Reserved ................................................................. 14

SW1-6/7 Clock Mode .......................................................... 15

SW1-8 RDL Function ......................................................... 15

4.0 Installation................................................................................. 16

4.1 Connecting the Twisted Pair Interface........................................ 16

4.2 Connecting Power ...................................................................... 18

Universal AC Power (100–240 VAC).......................................... 18

DC Power................................................................................... 18

5.0 Operation................................................................................... 20

5.1 Power-up .................................................................................... 20

5.2 LED Status Monitors................................................................... 20

5.3 Test Modes................................................................................. 21

Local Line Loopback (LLB)......................................................... 21

Remote Digital Loopback (RDL)................................................. 22

Using the V.52 (BER) test pattern generator.............................. 23

A Model 1082 specifications ....................................................... 24

A.1 Applications ................................................................................ 24

A.2 Transmission Format ................................................................... 24

A.3 Transmission Line ....................................................................... 24

A.4 Clocking ...................................................................................... 24

A.5 DSL Distance .............................................................................. 24

A.6 G.703 Distance ........................................................................... 24

A.7 A.7 Connector ............................................................................. 24

A.8 Operating Modes/speed ............................................................. 24

A.9 Line Coding ................................................................................ 24

A.10 Timing Modes ............................................................................. 25

A.11 TRANSMIT LEVEL ....................................................................... 25

A.12 Load Impedance ........................................................................ 25

A.13 Input Signal Level ....................................................................... 25

A.14 Jitter Performance ....................................................................... 25

A.15 Isoloation ..................................................................................... 25

A.16 Compliance ................................................................................. 25

A.17 LED Status Indicators ................................................................. 25

A.18 Power .......................................................................................... 25

A.19 Temperature Range .................................................................... 25

A.20 Altitude ........................................................................................ 26

A.21 Humidity ...................................................................................... 26

A.22 Dimensions ................................................................................. 26

A.23 Weight ......................................................................................... 26

A.24 Line Interface .............................................................................. 26

B Model 1082 Factory Replacement Parts and Accessories ... 27

1.0 WARRANTY INFORMATION

Patton Electronics

warrants all Model 1082/F 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

spe-

ciﬁcally 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 FCC INFORMATION

This equipment has been tested and found to comply with the limits for a

Class A digital device, pursuant to Part 15 of the FCC Rules.These limits

are designed to provide reasonable protection against harmful interfer-

ence when the equipment is operated in a commercial environment.This

equipment generates, uses, and can radiate radio frequency energy and,

if not installed and used in accordance with the instruction manual, may

cause harmful interference to radio communications.Operation of this

equipment in a residential area is likely to cause harmful interference in

which case the user will be required to correct the interference at his own

expense.If this equipment does cause harmful interference to radio or

television reception, which can be determined by turning the equipment

off and on, the user is encouraged to try to correct the interference by

one or more of the following measures:

• Reorient or relocate the receiving antenna

• Increase the separation between the equipment and receiver

• Connect the equipment into an outlet on a circuit different from that to

which the receiver is connected

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 LowVoltage 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 Materi-

als Authorization number on the outside of the shipping container.This

number may be obtained from Patton Electronics Technical Service at:

Tel:

(301) 975-1007

E-mail:

[email protected]

URL:

www.patton.com

Note

Packages received without an RMA number will not be

accepted.

If you have questions about installing or using your Model 1082/F, con-

tact technical support at:

+1 (301) 975-1007

.Technical support is avail-

able from

8 AM

5 PM EST

(

8:00

17:00 UTC-5

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

OneYear parts and labor. If any questions or problems arise during

installation or use of this product, please do not hesitate to contact

Patton ElectronicsTechnical Support

(301) 975-1007

2.1 FEATURES

• 64 kbps synchronous data rate

• Provides 64K co-directional interface compliant with G.703 electrical

specs.

• Offers a single Tx/Rx interface with a standard RJ45 connector as

speciﬁed in TBR14.

• Point-to-point distances up to 5 miles (all data rates) on 24 AWG

twisted pair

• Up to 1 mile (1.6 km) additional distance on G.703 line.

• Remote digital loopback, local line loopback diagnostic modes

• Full duplex operation over a single twisted pair (2-wires)

• Able to work in clear channel or Octet timing modes*

• Complies with ITU/CCITT G.823 (control of jitter).

• Compatible with popular Patton Models 1092A, 1092ARC, 3092, and

3192

• SNMP manageable as the remote CPE when used with Patton’s other

SNMP-manageble products

• Universal power options, 120VAC, 230VAC and -48 VDC are available

• Front panel status indicators

• Small, convenient desktop unit

• CE marked

2.2 DESCRIPTION

The

Patton Model 1082/F

is a high speed, AC powered short range

modem that is able to convert data from a 64K G.703 network and trans-

mit it at extended distances via 2 wire (single twisted pair) DSL.The

G.703 network provides a 64K co-directional three level signal using

either octet timing or clear channel mode.The 1082/F will detect and

pass either octet timing (preserving byte integrity over the modem link) or

* Octet timing mode available when used in 1082/F-to-1082/F conﬁg-

urations only.

clear channel timing (without byte integrity preservation) over the modem

link.The 1082/F is capable of handling either network timing or modem

timing, thereby realizing network extension or network replacement con-

ﬁgurations. Clock jitter is attenuated according to G.823.

The Model 1082 is capable of point-to-point distances up to 5 miles using

24 AWG wire.The Model 1082 supports internal, external or receive

loopback clocking.

2.3 1082 SNMP MANAGEMENT SOLUTIONS

The Model 1082/F is SNMP manageable when connected to a rack-

mounted Model 1092ARC (see Figure 1).SNMP management is enabled

through a 1001MC rack management card located in the Patton Electronics

Rack System..

Figure 1.

Typical application

HTTP/HTML Management

The 1001MC maintains HTML pages that can be viewed through a Web

browser.You can display remote statistics and conﬁgure Model 1082

parameters simply by entering the 1001MC’s IP address into the browser.

2.4 SYSTEM DESCRIPTION

This section describes the features that the entire system (G.703 interface,

combined with the modems) will support.

Note

The “smoothed” clocks referred to in this section indicate that a

phase-locked VCO is used to create a jitter-free clock that is

locked to a source clock.

10Base-T

connection

to 1001MC

Management

Station

Rack-mounted

1092ARCs

2B1Q

connections to

remote 1082s

Model 1082

Applications and AssociatedTiming

There are two typical applications that result in two different timing modes

for the G.703 interface.These are described in the following sections.

Timing of Application 1: Network Loop Extension.

In this application,

the network supplies the timing for the entire system.The ﬁrst G.703

recovers the timing. It has to smooth the clock before it supplies the clock

(XCLK1) and the data (TXD1) to the ﬁrst modem transmitter, so it can

directly use the clock.The Rx of the second modem recovers the clock

and presents a “jittery” clock (RXCLK1) and data (RXD1) to the second

G.703’s transmitter.This transmitter has to smooth the clock before it uses

the clock to transmit.

The Rx of the second G.703 recovers the timing and clocks the data into a

FIFO.TheTx of the second modem takes its recovered clock and sends it

(TXCLK1) to the G.703 FIFO for data (TXD1).The Rx of the ﬁrst modem

recovers the timing and clocks (RXCLK1) the data (RXD1) into a FIFO.

The Tx of the ﬁrst G.703 uses the ﬁrst G.703’s recovered clock and sends

it to the FIFO for data.

The ﬁrst G.703 interface is in

NetworkTimed

mode.The second is in

Recover Clock

mode.See Figure 2.

Figure 2.

Network Loop Extension Conﬁguration

Timing of Application 2: Network Replacement.

Theﬁrstmodemuses

an internal timing source and supplies the timing for the entire system.The

ﬁrst G.703 recovers the timing and clocks the data into the FIFO.TheTx of

the ﬁrst modem takes its internal clock and sends it (TXCLK1) to the

G.703 FIFO for data (TXD1).The Rx of the second modem recovers the

clock and presents a “jittery” clock and data to the second G.703’s trans-

mitter. It has to smooth the clock before it uses the clock to transmit.

The Rx of the second G.703 recovers the timing and clocks the data into a

FIFO.TheTx of the second modem sends the second modem’s recovered

clock (TXCLK1) to the G.703 FIFO for data (TXD1).The Rx of the ﬁrst

modem uses its internal clock (RXCLK1) to send data (RXD1) into the

FIFO.TheTx of the ﬁrst G.703 smoothes the ﬁrst modem’s recovered tim-

ing and sends it to the FIFO for data.

CSU

DTE

G.703

2 or 4 Wire

G.703 INTF-

MODEM

TIMED MODE

SECOND MODEM

FIFO TX

SMOOTHED

TX TX

FIFO

G.703

FIFO

HOST

MODEM -

RECOVERED

TIMING

FIRST MODEM HOST MODEM

INTERFACE

(EXTERNAL)

TIMING

G.703 INTERFACE

NETWORK

TIMED MODE

NETWORK

G.703 TX

SMOOTHS

RX MODEM

CLOCK

The ﬁrst G.703 modem is in

Internal Clock

mode. The second modem is

Receive Recover

mode.See Figure 3.

Figure 3.

Network Replacement Conﬁguration

2.5 TIMING MODE SELECTIONS

Based on the timing arrangements and clock sources mentioned above,

there are two timing modes in which the interface can work.These two

modes select the clock sources mentioned above and determine which

clock gets smoothed.

•

NetworkTimed

—This sets the interface to pass the smoothed recov-

ered timing to the modem as XCLK1, with the Rx data as TXD1, and

also to the G.703 Tx side.

•

Internal/Receive Recovered

—This sets the interface to use the

modem’s Tx timing (recovered or internal source) to send the Rx data

(asTXD1) to the modem and to smooth the modem’s recovered timing

for transmitting on the G.703 Tx side.

CSU

DTE

G.703

2 Wire

G.703 INTF-

MODEM

TIMED MODE

SECOND MODEM

FIFO TX

SMOOTHED

FIFO

G.703

FIFO

HOST

MODEM -

RECOVERED

TIMING

FIRST MODEM HOST

MODEM -

INTERNAL

TIMING

G.703 INTF-

MODEM

TIMED MODE

CSU

DTE

G.703 TX

SMOOTHS

RX MODEM

CLOCK

G.703 TX SMOOTHS

RX MODEM CLOCK

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