USER
MANUAL
MODEL 1082/F
iDSL Modem with
G.703 Interface
CERTIFIED
An ISO-9001
Certified
Company
Part# 07M1082/F
Doc# 033171UA
Revised 10/8/02
SALES OFFICE
(301) 975-1000
TECHNICAL SUPPORT
(301) 975-1007
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
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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
3
1.0 WARRANTY INFORMATION
Patton Electronics
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
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.
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 P art 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference 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:
warrants all Model 1082/F components to be free
be liable for any damages incurred b y the use of this
Patton Electronics
spe-
• 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.
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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
E-mail:
URL:
support@patton.com
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, contact technical support at:
able from
Friday
8 AM
to
.
+1 (301) 975-1007
5 PM EST (8:00
to
17:00 UTC-5
. Technical support is avail-
),
Monday
through
5
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
• 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, 120 V A C , 230 V AC and -48 VDC are av ailab le
• 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 transmit 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.
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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 configurations. 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 rackmounted Model 1092ARC (see Figure 1). SNMP management is enab led
through a 1001MC rack management card located in the Patton Electronics
Rack System..
Model 1082
10Base-T
connection
to 1001MC
Management
Station
Figure 1.
2B1Q
connections to
remote 1082s
Model 1082
Rack-mounted
1092ARCs
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 bro wser.
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.
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Applications and Associated Timing
There are two typical applications that result in two different timing modes
for the G.703 interface . These are described in the f ollo wing sections.
Timing of Application 1: Network Loop Extension.
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. The Tx 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.
In this application,
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The first G.703 interface is in
Recover Clock
mode. See Figure 2.
Network Timed
mode. The second is in
RX
TX
CSU
DTE
RX
TX
NETWORK
G.703 INTF-
MODEM
TIMED MODE
G.703
G.703
G.703 INTERFACE
NETWORK
TIMED MODE
Figure 2.
Network Loop Extension Configuration
TX
RX
SECOND MODEM
TX
RX
SMOOTHED
FIRST MODEM
G.703 TX
SMOOTHS
RX MODEM
CLOCK
FIFO
FIFO
FIFO
FIFO
HOST
MODEM -
RECOVERED
TIMING
RX
TX
RX
TX
HOST MODEM
INTERFACE
(EXTERNAL)
TIMING
2 or 4 Wire
Timing of Application 2: Network Replacement.
The first modem uses
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 . The Tx 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” cloc k and data to the second G.703’s transmitter. It has to smooth the clock before it uses the clock to tr ansmit.
The Rx of the second G.703 recovers the timing and clocks the data into a
FIFO. The Tx of the second modem sends the second modem’ s reco vered
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. The Tx of the first G.703 smoothes the first modem’s recovered timing and sends it to the FIFO for data.
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