Patton electronics NetLink 1082/I Manuel utilisateur

USER

MANUAL

MODEL 1082/I and

1082/144/I

iDSL Modem with

10Base- T Interface

SALES OFFICE

(301) 975-1000

TECHNICAL SUPPORT

(301) 975-1007

Part# 07M1082/I-B

Doc# 033181UB

Revised 7/13/01

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.................................................................................... 7

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

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

3.0 PPP Operational Background..................................................... 8

3.1 Applications .................................................................................. 8

4.0 Configuration ............................................................................. 11

4.1 Configuring the Hardware DIP Switches .................................... 11

Configuring DIP Switch S1 ......................................................... 12

Switches S1-1 and S1-2: Data Rate........................................... 13

Switch S1-5: Asynchronous/Sync Operation.............................. 13

Switches S1-6 and S1-7: System Clock Mode ........................... 14

Switch S1-8: Response to RDL Request.................................... 14

Configuring DIP switch “S2” ....................................................... 15

Switches S2-1: 19.2 kbps or 144* kbps

Synchronous Rate Enable.......................................................... 15

Switch S2-2: Front Panel Switch Disable ................................... 16

Switches S2-3, S2-6, S2-7 and S2-8: Reserved ........................ 16

5.0 Installation.................................................................................. 17

5.1 Connecting DSL Interface........................................................... 17

5.2 Connecting 10Base-T Ethernet Port to PC (DTE) ...................... 18

5.3 Connecting 10Base-T Ethernet Port to Hub (DCE) .................... 18

5.4 Power Connection ...................................................................... 19

Universal AC Power (100–240VAC)........................................... 19

DC Power ................................................................................... 20

6.0 Operation.................................................................................... 21

6.1 Power-up .................................................................................... 21

6.2 LED Status Monitors................................................................... 21

6.3 Test Modes ................................................................................. 23

Remote Digital Loopback (RDL)/V.52 (BER).............................. 23

A 1082/I Specifications ................................................................. 25

A.1 Transmission Format ...................................................................25

A.2 Transmission Line ........................................................................25

A.3 Clocking .......................................................................................25

A.4 Distance .......................................................................................25

A.5 Data Rates ...................................................................................25

A.6 Diagnostics ..................................................................................25

A.7 LED Stat s Indicators ..................................................................25

A.8 Connectors ..................................................................................25

A.9 Power ...........................................................................................25

A.10 Temperat re Range .....................................................................26

A.11 Altit de .........................................................................................26

A.12 H midity .......................................................................................26

A.13 Dimensions ..................................................................................26

A.14 Weight ..........................................................................................26

B Model 1082/I Factory Replacement Parts

and Accessories ........................................................................ 27

1.0 WARRANTY INFORMATION

Patton Electronics

warrants all Model 1082/I and Model 1082/144/I

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 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 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.

Patton Electronics’ technical staff is also available to answer any ques-

tions that might arise concerning the installation or use of your

Model 1082/I or Model 1082/144/I. Technical Service hours:

8AM

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 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

(301) 975-1007

2.1 FEATURES

• Provides MAC Level Data Link (Layer 2) connection between two

peered 10Base-T Ethernet LANs

• Operates transparently to higher level protocols such as TCP/IP, DEC-

net, NETBIOS and IPX

• PPP (Point to Point Protocol, RFC 1661) with Bridge Control Protocol

(RFC 1638)

• Automatically learns, loads and removes MAC addresses

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

twisted pair

• HTTP/SNMP Manageable as CP (Customer Premises) Unit with

1092ARC CO (Central Ofﬁce) Rack Card and 1001MC management card

• Internal or receive recovered clocking between units

• LED indicators for 10Base-T Link, DSL Link, Status, No Signal, Error

and Test Mode

• Remote digital loopback, local line loopback diagnostic modes

• Synchronous data rates: 19.2, 32, 56, 64, 128, and 144 kbps

Note

144 kbps data rate is only available on the Model 1082/144/I.

19.2 kbps rate is available on all Model 1082 series modems

except

for the 1082/144/I.

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

• Multi-Rate Symmetric DSL

• Compatible with the popular Patton Model 1092A

• Universal power supply (90–260VAC) or DC power supply (-48VDC)

• Small, Convienent Desktop Unit

• CE Marked

2.2 DESCRI TION

The Model 1082/I and Model 1082/144/I are Multi Rate iDSL Modems that

provide seamless MAC Layer connectivity between 2 peered 10Base-T

LANs. Now, Enterprise users no longer need to hassle with a bridge and a

CSU/DSU or recurring leased line costs. The 1082 allows users to add addi-

tional nodes to a LAN that has reached its maximum distance limits or sepa-

rate high trafﬁc areas of a LAN. The 1082 connects peered LANs and

automatically forwards and receives LAN broadcasts, multi-casts and

frames across a 2-wire DSL span. The Model 1082/I and Model 1082/144/I

support PPP (RFC 1s661) and BCP (RFC 1638).

Both 1082 modems’ features include loopback diagnostics, inband

SNMP/HTTP remote management capabilities using NetLink Plug-and-

Play and externally accessible conﬁguration switches. As a symmetric

DSL modem, the1082 offers the same data rates in both directions over

a single pair of regular telephone lines using 2BIQ modulation. The 1082

connects to the DSL line via an RJ-45 jack, and is powered by a univer-

sal (90–260VAC) supply or a DC supply (-48VDC).

2.3 1082 SNM MANAGEMENT SOLUTIONS

The Model 1082/I and Model 1082/144/I are SNMP manageable when con-

nected to a rack-mounted Model 1092ARC (see Figure 1). SNMP manage-

ment 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.

10Base-T

connection

to 1001MC

Management

Station

Rack-mounted

1092ARCs

2B1Q

connections to

remote 1082s

Model 1082

3.0 O ERATIONAL BACKGROUND

PPP is a protocol used for multi-plexed transport over a point-to-point

link. PPP operates on all full duplex media, and is a symmetric peer-to-

peer protocol, which can be broken into three main components:

•A standard method to encapsulate datagrams over serial links

•A Link Control Protocol (LCP) to establish, conﬁgure, and test the

data-link connection

•A family of Network Control Protocols (NCPs) to establish and conﬁg-

ure different network layer protocols

In order to establish communications over a point-to-point link, each end

of the PPP link must ﬁrst announce its capabilities and agree on the

parameters of the link’s operation. This exchange is facilitated through

LCP Conﬁgure-Request packets.

Once the link has been established and optional facilities have been

negotiated, PPP will attempt to establish a network protocol. PPP will

use Network Control Protocol (NCP) to choose and conﬁgure one or

more network layer protocols. Once each of the network layer protocols

have been conﬁgured, datagrams from the established network layer

protocol can be sent over the link. The link will remain conﬁgured for

these communications until explicit LCP or NCP packets close the link

down, or until some external event occurs.

The PPP Bridging Control Protocol (BCP), deﬁned in RFC 1638, conﬁg-

ures and enables/disables the bridge protocol on both ends of the point-

to-point link. BCP uses the same packet exchange mechanism as the

Link Control Protocol (LCP). BCP is a Network Control Protocol of PPP,

bridge packets may not be exchanged until PPP has reached the net-

work layer protocol phase.

3.1 A LICATIONS

In situations where a routed network requires connectivity to a remote Ether-

net network, the interface on a router can be conﬁgured as a PPP IP Half

Bridge. The serial line to the remote bridge functions as a Virtual Ethernet

interface, effectively extending the routers serial port connection to the

remote network. The bridge device sends bridge packets (BPDU’s) to the

router's serial interface. The router will receive the layer three address infor-

mation and will forward these packets based on its IP address.

Figure 2.

Cisco router with serial interface, conﬁgured as PPP Half-Bridge

Figure 2 shows a typical Cisco router with a serial interface conﬁgured

as a PPP Half Bridge. The router serial interface uses a remote device

that supports PPP bridging to function as a node on the remote Ethernet

network. The serial interface on the Cisco will have an IP address on the

same Ethernet subnet as the bridge.

For example, the customer site is assigned the addresses 192.168.1.0/

24 through 192.168.1.1/24. The address 192.168.1.1/24 is also the

default gateway for the remote network. The above settings remove any

routing/forwarding intelligence from the CPE. The associated Cisco con-

ﬁguration will set serial interface (s0) to accommodate half bridging for

the above example.

Authentication is optional under PPP. In a point-to-point leased-line link,

incoming customer facilities are usually ﬁxed in nature, therefore authen-

tication is generally not required. If the foreign device requires authenti-

cation via PAP or CHAP, the PPP software will respond with default Peer-

ID consisting of the units Ethernet MAC address and a password which

consists of the unit’s Ethernet MAC address.

Some networking systems do not deﬁne network numbers in packets

sent out over a network. If a packet does not have a speciﬁc destination

network number, a router will assume that the packet is set up for the

local segment and will not forward it to any other sub-network. However,

in cases where two devices need to communicate over the wide-area,

bridging can be used to transport non-routable protocols.

Patton

1082/I

Bridge

Ethernet LAN

PEC device with

serial interface

Patton 1082/C

connected to a router

Figure 3.

Transparent bridging between two routers over a serial interface

Figure 3 illustrates transparent bridging between two routers over a

serial interface (s0). Bridging will occur between the two Ethernet inter-

faces on router A (e0 and e1) and the two Ethernet interfaces on router B

(e0 and e1).

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