Patton electronic Network Card 1082 144 I User Manual

USER  
MANUAL  
MODEL 1082/I and  
1082/144/I  
iDSL Modem with  
10Base- T Interface  
Part# 07M1082I-UM  
Doc# 03318U2-001  
Rev. C  
SALES OFFICE  
(301) 975-1000  
TECHNICAL SUPPORT  
(301) 975-1007  
Revised 10/27/06  
C
E
R
T
I
F
I
E
D
An ISO-9001  
Certified  
Company  
 
A.9 Power .......................................................................................... 25  
A.10 Temperature Range .................................................................... 26  
A.11 Altitude ........................................................................................ 26  
A.12 Humidity ...................................................................................... 26  
A.13 Dimensions ................................................................................. 26  
A.14 Weight ......................................................................................... 26  
B
Model 1082/I Factory Replacement Parts  
and Accessories ....................................................................... 27  
3
 
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.  
4
 
     
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  
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 to 5PM  
EST, Monday through Friday.  
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  
• 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  
6
 
   
2.2 DESCRIPTION  
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 SNMP 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.  
Model 1082  
2B1Q  
connections to  
remote 1082s  
10Base-T  
connection  
to 1001MC  
Management  
Station  
Model 1082  
Rack-mounted  
1092ARCs  
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.  
7
 
       
3.0 PPP OPERATIONAL 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 APPLICATIONS  
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.  
8
 
   
Patton 1082/C  
connected to a router  
Patton  
1082/I  
Bridge  
Ethernet LAN  
PEC device with  
serial interface  
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.  
9
 
 
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).  
10  
 
4.0 CONFIGURATION  
The Model 1082/I and Model 1082/144/I each are equipped with 16 DIP  
switches that enable configuration of the unit for a wide variety of appli-  
cations.This section describes switch locations and explains the different  
configurations.  
4.1 CONFIGURING THE HARDWARE DIP SWITCHES  
Using a small flat-tip screwdriver, remove the protective cover located on  
the underside of the Model 1092 (see Figure 4).  
S L  
1 0 B T  
S t a t u s  
L i n k  
1 1 9 4 E S i n g l e M o d e F i b e r Q u a d G . 7 0 3 / G . 7 0 4 M o d e m  
-
N S  
E R  
5 1 1 / R D L  
T M  
N o r m a l  
5 1 1 E / R B L  
N e t L i n k 1 0 B a s t T i D S L M o d e m  
Figure 4. Removing the cover to access DIP switches S1 and S2  
11  
 
   
S1 S2  
S 2  
ON  
1
ON  
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
S 1  
S1  
5 6 7 8  
ON  
Switch toggle  
1 2 3 4  
Push toggle up  
ON  
ON  
for ON position  
Push toggle  
down for  
OFF position  
1 2 3 4 5 6 7 8 1 2  
S 1  
Figure 5. DIP switches S2 and S2  
Figure 5 shows the orientation of the DIP switches in the “ON” and “OFF”  
positions.  
Configuring DIP Switch S1  
DIP switch S1 is where you configure the data rate, asynchronous or  
synchronous data format, transmit clock source, and response to RDL  
request. The following table summarizes default positions of DIP  
switches S1-1 through S1-8. Detailed descriptions of each switch follow  
the table.  
S1 Summary Table  
Position  
S1-1  
S1-2  
S1-3  
S1-4  
S1-5  
S1-6  
S1-7  
S1-8  
Function  
Data Rate  
Factory Default  
On  
64K Sync  
}
Data Rate  
Off  
Reserved  
On  
On  
Reserved  
Async/Sync Data Format  
Tx Clock Source  
Tx Clock Source  
Response to RDL Request  
Off  
On  
On  
On  
Async/Sync  
Internal Clock  
Enable  
}
12  
 
   
Note When setting the 1082 for SNMP Management, the DTE rate  
switches (S1-1,S1-2, and S2-1) must be also set to the ON posi-  
tion.Therefore, to set a 1082 unit SNMP Mangagement mode, the  
following switches have to be at the ON position, S1-1, S1-2, S2-1.  
Switches S1-1 and S1-2: Data Rate  
Use switches S1-1 and S1-2 to configure the asynchronous or synchro-  
nous data rate of the Model 1082/I and Model 1082/144/I. Each setting  
represents one synchronous data rate and one asynchronous data rate.  
S1-1 S1-2  
Sync Data Rate  
Async. Data Rate  
On  
Off  
On  
Off  
Off  
On  
On  
Off  
Off  
Off  
32 kbps  
56 kbps  
Reserved  
Reserved  
0–38.4 kbps  
Reserved  
64 kbps  
128 kbps (see note)  
144 kbps or 19.2 kbps (see note)  
Note The Model 1082/I can also operate at the 19.2 kbps synchro-  
nous rate, and the Model 1092/144/I can also operate at the 144  
kbps synchronous rate. To operate at these rates, set Switches  
S1-1 and S1-2 both to the OFF position and Switch S2-1 to the  
ON position (see “Configuring DIP switch “S2”” on page 152 for  
a description of Switch S2-1).  
If the S2-1 switch is positioned in the OFF position, the 128 kbps  
sync data rate/0–38.4 kbps async data rate option is selected.  
Switch S1-3 and S1-4: Must be set to the ON position (Reserved).  
S1-3  
Setting  
S1-4  
Setting  
On  
Reserved  
On  
Reserved  
Switch S1-5: Asynchronous/Sync Operation  
Use Switch S1-5 to configure the Model 1082 for async/sync operation.  
Switch S1-5 must be set in the Off position. There is no other valid set-  
ting.  
S1-5  
Setting  
Off  
Async/Sync  
13  
 
   
Switches S1-6 and S1-7: System Clock Mode  
Use Switches S1-6 and S1-7 to configure the 1082/I or Model 1082/144/  
I for internal, or receive recover clock mode.  
S1-6 S1-7  
Clock Mode  
Description  
On  
On  
On  
Off  
Internal  
System clock generated internally  
Receive Recover  
System clock derived from the  
received line signal  
Off  
Off  
Hardware Reset  
A pair of Model 1082/Is communicate synchronously  
across the twisted pair line connection. Therefore, you  
must set these switches whether your application is  
async or sync. For Sync or Async applications, please  
configure one Model 1082/I for internal clock mode and  
the other Model 1082/I for receive recover clock mode.  
Important  
Switch S1-8: Response to RDL Request  
Use Switch S1-8 to allow Model 1082/I and Model 1082/144/I to enter the  
Remote Digital Loopback diagnostic test when requested to do so by the  
far end Model 1082/I and Model 1082/144/I. For example, when switch S1-  
8 is set to “ON”, it will enter RDL mode (See section 6.3, “Test Modes” on  
page 23) when requested to do so by the remote Model 1082/I and Model  
1082/144/I.  
S1-8  
Setting  
On  
Off  
Response to RDL Request Enabled  
Response to RDL Request Disabled  
Note The Remote Digital Loopback (RDL) will not work for 144 kbps.  
You must first set the units to 128 kbps or slower to use the RDL.  
14  
 
   
Configuring DIP switch “S2”  
Use the eight DIP switches in S2 to enable 19.2 kbps or 144* kbps syn-  
chronous operation and set the loopback modes. The following table  
summarizes default positions of DIP switches S2-1 through S2-8.  
Detailed descriptions of each switch follow the table.  
S2 Summary Table  
Position  
Function  
Factory Default  
S2-1  
S2-2  
S2-3  
S2-4  
S2-5  
S2-6  
S2-7  
19.2 or 144* kbps Enable  
Front Panel Switch Disable  
Reserved  
Off  
Off  
Off  
Off  
Off  
On  
Off  
Reserved  
Reserved  
Reserved  
Reserved  
S2-8  
Reserved  
Off  
Switches S2-1: 19.2 kbps or 144* kbps Synchronous Rate Enable  
Use switch S2-1 to allow the Model 1082/I and Model 1082/144/I to oper-  
ate at the 19.2 kbps synchronous data rate, or to enable the Model 1082/  
144/I to operate at the 144* kbps synchronous data rate.  
S2-1 Activation  
Description  
Off  
Disabled  
defined by switches S1-1 and S1-2  
On  
Enabled  
Model 1082/I operates at synchronous 19.2 kbps  
data rate (see note).The Model 1082/144/I oper-  
ates at 144 kbps synchronous data rate (see note)  
Note To operate at 19.2 kbps or 144 kbps, set switches S1-1 and S1-2  
to the OFF position and switch S2-1 to ON (see section “Configur-  
ing DIP Switch S1” on page 12).  
*
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.  
15  
 
   
Switch S2-2: Front Panel Switch Disable  
Use switch S2-2 to enable or disable the front panel toggle switches.  
S2-2  
Setting  
On  
Off  
Disable the front panel switches  
Enable the front panel switches  
Switches S2-3, S2-6, S2-7 and S2-8: Reserved  
16  
 
   
5.0 INSTALLATION  
When the Model 1082 has been properly configured, it may be con-  
nected to the DSL twisted pair interface, the 10Base-T Ethernet Inter-  
face, and the power source. This section describes these connections.  
Interface connectDoSrL interface  
Made in the USA  
Power  
Interface  
DSL  
Power input  
connector  
d G.703/G.704 Modem  
Power  
E  
Made in the USA  
DS
Intee  
Figure 6. Model 1082/I or Model 1082/144/I rear view  
5.1 CONNECTING DSL INTERFACE  
The Model 1082 supports communication between 10Base-T Hubs or  
Workstations at distances to 5 miles (8 km) over 24 AWG (.5mm) twisted  
pair wire. There are two requirements for installing the Model 1082:  
• 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.  
To function properly, the Model 1082 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 cir-  
cuits that run through signal equalization equipment, or standard, flat  
modular telephone type cable, are not acceptable.  
17  
 
   
The RJ-45 connector on the Model 1082’s twisted pair interface is polar-  
ity insensitive and is wired for a two-wire interface. The signal/pin rela-  
tionships are shown in Figure 7 below.  
Figure 7. Model 1082/I twisted pair line interface  
5.2 CONNECTING 10BASE-T ETHERNET PORT TO PC (DTE)  
The 10Base-T interface is configured as DTE (Data Terminal Equip-  
ment). If the Model 1088 is to to connect to another DTE device such as  
a 10Base-T network interface card, construct a 10Base-T crossover  
cable and connect the wires as shown in Figure 8.  
10Base-T Port  
RJ-45 Pin No.  
1 (TD+)  
10Base-T DTE  
RJ-45 Pin No.  
1 (TD+)  
2 (TD-)  
2 (TD-)  
3 (RD+)  
3 (RD+)  
6 (RD-)  
6 (RD-)  
Figure 8. Connecting 10Base-T Ethernet port to PC  
5.3 CONNECTING 10BASE-T ETHERNET PORT TO HUB (DCE)  
The 10Base-T interface is configured as DTE (Data Terminal Equip-  
ment), just like a 10Base-T network interface card in a PC. Therefore, it  
“expects” to connect to a 10Base-T Hub using a straight-through RJ-45  
cable. Figure 9 shows how to construct a cable to connect the 10Base-T  
interface to a 10Base-T Hub.  
10Base-T Port  
RJ-45 Pin No.  
1 (TD+)  
10Base-T Hub  
RJ-45 Pin No.  
1 (TD+)  
2 (TD-)  
2 (TD-)  
3 (RD+)  
6 (RD-)  
3 (RD+)  
6 (RD-)  
Figure 9. Connecting the 10Base-T interface to a 10Base-T Hub  
18  
 
         
5.4 POWER CONNECTION  
Universal AC Power (100–240VAC)  
The Model 1082/I 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 connects to the  
Model 1082/I by means of a barrel jack on the rear panel. Many interna-  
tional power cords are available for the universal power supply. Please  
refer to Appendix B for country-specific power cords.  
The Model 1082/I powers up as soon as it is plugged into an AC outlet.  
The Model 1082/I does not have a power switch.  
19  
 
   
DC Power  
The 36-60 VDC DC to DC adapter is supplied with the DC version of the  
Model 1082. The black and red leads plug into a DC source (nominal  
48VDC) and the barrel power connector plugs into the barrel power sup-  
ply jack on the rear panel of the 1082. (See Figure 10).  
To Power  
To -48VDC  
Supply Jack  
Source  
-Vin  
Black lead (-V)  
Red lead (+V)  
+Vin  
Barrel power connector  
Figure 10. Power adapter  
There are no user-serviceable parts in the power supply  
section of the Model 1082/I. Contact Patton Electronics  
Technical support at +1 (301) 975-1007, via our web site  
[email protected], for more information.  
WARNING  
20  
 
   
6.0 OPERATION  
When the Model 1082/I and Model 1082/144/I have been properly config-  
ured and installed, it should operate transparently.This sections describes  
power-up, LED status monitors, and the built-in loopback test modes.  
6.1 POWER-UP  
read section 5.4, “Power Connection” on page 19 and ensure that the  
unit is connected to the appropriate power source.  
6.2 LED STATUS MONITORS  
The Model 1082/I and Model 1082/144/I feature six front panel LEDs that  
monitor connections on the DSL and 10Base-T links, signaling, error and  
test modes. (See Figure 11 for front panel location of each LED).  
Descriptions of each LED follow in Table 1 on page 22.  
NetLink™ 10Base-T iDSL Model  
Link  
511E/RDL  
Normal  
DSL  
10BT  
NS  
ER  
TM  
511/RDL  
DSL NS  
10BT ER  
TM Loopback  
switch  
Figure 11. Model 1082/I or 1082/144/I front panel LED locations  
21  
 
       
Table 1: LED status monitor indications  
LED  
Description  
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.  
Status  
Blinks yellow from one to eleven times to indicate system  
status. Each pulse pattern is separated by a 2 second “off”  
period. Greater pulse patterns have higher priority (buffer  
saturation has greater priority than an empty MAC table).  
Valid system statuses are:  
1 pulse—system status is okay  
2 pulses—no MAC entries in the MAC Address Table  
3 pulses—Clear to Send (CTS) or Carrier Detect (DCD)  
from base unit are not asserted  
4 pulses—IM1/I buffer is saturated  
5 pulses—WAN receive frame(s) too large  
6 pulses—WAN receive frame(s) not octet aligned  
7 pulses—WAN receive frame(s) aborted  
8 pulses—Detected WAN receive frame(s) with CRC  
9 pulses—Detected LAN receive frame(s) too large  
10 pulses—Detected LAN receive frame(s) not octet  
aligned  
11 pulses—Detected LAN receive frame(s) with bad  
CRC  
10BT Link  
(Active green) Solid green indicates that the 10Base-T  
Ethernet interface has detected a valid SQE heartbeat, signi-  
fying a valid 10Base-T connection  
NS  
ER  
(Active red) Solid red indicates that the Digital Signal Proces-  
sors (DSPs) are not linked  
(Active red) Flashing red indicates CRC errors on DSL  
(framer) side if DSL Link is active or if bit errors are received  
during loop/BER test  
ER flashes once, to indicate a CRC error (during normal  
operation) or bit errors (during Remote Loopback 511/511E  
tests)  
TM  
(Active yellow) Solid yellow indicates an Active Test Mode.  
The unit may be placed in test mode by the local user or by  
the remote user.  
22  
 
 
Table 2: LED configurations  
LOCAL  
Status  
F
REMOTE  
Status  
F
10Base-T  
G*  
DSL  
off  
NS  
on  
ER  
off  
TM  
off  
10Base-T  
G*  
DSL  
off  
NS  
ER  
off  
TM  
off  
Power ON  
O
N
DSL Link  
Link Brk  
Brk+ 10s  
G*  
G*  
G*  
G
F
F
F
off  
off  
off  
off  
off  
off  
off  
off  
G*  
G*  
G*  
off  
off  
off  
F
F
F
off  
off  
off  
off  
off  
off  
off  
off  
off  
off  
ON  
O
N
RDL  
G*  
G*  
G
F
F
off  
off  
off  
off  
ON  
ON  
G*  
G*  
off  
off  
F
F
off  
off  
off  
off  
ON  
ON  
RDL+511  
off  
With DTE Connected  
With DTE Connected  
Mark  
Space  
Data  
G*  
G*  
G*  
G
G
G
F
F
F
off  
off  
off  
off  
off  
off  
off  
off  
off  
G*  
G*  
G*  
G
G
G
F
F
F
off  
off  
off  
off  
off  
off  
off  
off  
off  
G=GREEN  
O=ORANGE  
ON= ON  
off= OFF  
Brk+10s = 10 Seconds following Link Break  
G*=Green if a valid 10Base-T connection is detected.  
F=Flashing  
Link Brk = DSL Link Broken  
6.3 TEST MODES  
The Model 1082/I and Model 1082/144/I has a built-in proprietary loop-  
back test mode, plus a built-in V.52 BER test pattern generator, for evalu-  
ating the condition of the modems and the communication link. These  
tests can be activated physically from the front panel, or via the interface.  
Remote Digital Loopback (RDL)/V.52 (BER)  
The Remote Digital Loopback (RDL) test checks the performance of both  
the local and remote Model 1082s, and the communication link between  
them. Any characters sent to the remote Model 1082 in this test mode  
will be returned back to the originating device (see Figure 7, below). For  
example, characters typed on the keyboard of the local terminal will  
appear on the local terminal screen after having been passed to the  
remote Model 1082 and looped back.  
Local 1082  
Remote 1082  
RDL initiated  
Figure 12. Remote digital loop  
23  
 
   
Do not send a 511 test pattern from the test equipment  
when you connect external test equipment to the 1082.  
Important  
Activating RDL can be done in two ways:  
1. Move the front panel toggle switch to appropriate position.  
2. Set remote loopback from SNMP screen (when used with 1092ARC  
Rack Card)  
Note Remote loopback cannot be activated until approximately 45  
seconds after the two modems have linked to each other.  
Note The Remote Digital Loopback (RDL) will not work for 144 kbps.  
You must first set the units to 128 kbps or slower to use the RDL.  
To use the V.52 BER tests with the Remote Digital Loopback tests, do the  
following:  
1. Locate the 511/RDL toggle switch on the front panel of the 1082/I  
and move it DOWN. This initiates the RDL and sends a 511 pattern  
into the loop. If any errors are present, the local modem’s red “ER”  
LED will blink continually.  
2. If the above test indicates no errors are present, move the V.52 tog-  
gle switch UP, activating the 511E/RDL test with errors present. If  
the test is working properly, the local modem's red “ER” LED will  
blink approximately once per second. A successful 511E/RDL test  
will confirm that the link is in place, and that the Model 1082’s built-in  
“511” generator and detector are working properly.  
24  
 
APPENDIX A  
1082/I Specifications  
A.1 TRANSMISSION FORMAT  
Synchronous or asynchronous  
A.2 TRANSMISSION LINE  
Single unconditioned twisted pair  
A.3 CLOCKING  
Internal or receive loopback  
A.4 DISTANCE  
2-Wire Distance Table in miles (km)  
AWG Wire Gauge (mm)  
22 (.6) 24 (.5)  
10.8 (17.2) 7.2 (11.5) 5.0 (8.0) 3.4 (5.5)  
Data Rate  
19 (.9)  
6 (.4)  
All rates  
A.5 DATA RATES  
Synchronous 19.2, 32, 56, 64, and 128 kbps, (and 144 kbps on 1082/144  
only); Asynchronous 0–38.4 kbps  
A.6 DIAGNOSTICS  
V.52 compliant bit error rate pattern (511/511E pattern) generator and  
detector with error injection mode; Local Line Loopback and Reomote Dig-  
ital Loopback, activated by front panel switches or via serial interface.  
A.7 LED STATUS INDICATORS  
DSL, 10Base-T, Status, NS (no signal), ER (error) and TM (test Mode)  
A.8 CONNECTORS  
RJ-45 on line side; shielded RJ-45 on Ethernet port  
A.9 POWER  
100–253 VAC, 50–60 Hz (universal input option); 48 VDC (optional),  
5 watts  
25  
 
                   
A.10 TEMPERATURE RANGE  
32–122°F (0–50°C)  
A.11 ALTITUDE  
0–15,000 feet (0–4,572 meters)  
A.12 HUMIDITY  
5–95% non-condensing  
A.13 DIMENSIONS  
4.125W x 1.625H x 6.0D in. (10.5W x 4.1W x 15.2D cm)  
A.14 WEIGHT  
2.01 lbs. (1.0 kg)  
26  
 
         
APPENDIX B  
MODEL 1082/I FACTORY REPLACEMENT PARTS AND ACCESSORIES  
Model #  
Description  
1082/I  
10Base-T, DSL Modem  
1082/144/I  
10Base-T DSL modem with maximum data rate of 144 kbps  
48V-PSM  
DC Power Supply Module  
08055DCUI 100-240VAC (+5V ±5% reg. DC/2A) Universal Input Adapter  
0805EUR  
0805UK  
0805US  
0805AUS  
0805DEN  
0805FR  
0805IN  
European Power Cord CEE 7 (“A”)  
United Kingdom Power Cord (“D”)  
American Power Cord (“K”)  
Australia/New Zealand Power Cord (“C”)  
Denmark Power Cord (“E”)  
France/Belgium Power Cord (“F”)  
India Power Cord (“G”)  
0805IS  
Israel Power Cord (“H”)  
0805JAP  
0805SW  
Japan Power Cord (“J”)  
Switzerland Power Cord (“L)  
07M1082  
User Manual  
27  
 
 
Notes  
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_________________________________________________________  
_________________________________________________________  
_________________________________________________________  
_________________________________________________________  
_________________________________________________________  
Copyright © 1998, 2001, 2006  
Patton Electronics Company  
All Rights Reserved.  
28  
 

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