Patton electronic Network Card MODEL 1075 User Manual

USER  
MANUAL  
MODEL 1075  
KiloModem II AC  
Powered, High-Speed  
X.21 Short-Range Modem  
Part #07M1075-B  
Doc: 054081UB  
Revised 6/16/97  
SALES OFFICE  
(301) 975-1000  
TECHNICAL SUPPORT  
(301) 975-1007  
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An ISO-9001  
Certified Company  
 
2.0 GENERAL INFORMATION  
3.0 CONFIGURATION  
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 Customer Service at (301) 975-1007.  
The Model 1075 is easy to install and is ruggedly designed for  
excellent reliability. The following instructions will help you to properly  
configure the Model 1075.  
3.1 CONFIGURATION SWITCHES  
The Model 1075 uses a unique set of 16 external mini DIP  
switches that allow configuration to wide range of applications. The 16  
external switches are grouped into two eight-switch sets, and are  
externally accessible from the underside of the Model 1075 (See Figure  
1).  
2.1 FEATURES  
• Data rates of 32, 56 and 64 kbps  
• Distances to 6 miles (9.7km)  
• Switch-selectable carrier control  
• Synchronous X.21 operation  
• Frequency Shift Keying (FSK) modulation  
• DCE/DTE Switchable  
• Point-to-point operation over 2 unconditioned twisted pair  
• V.54 loopback tests and V.52 compliant BER tests  
• 6 LED indicators  
• Externally powered  
• Transformer isolation  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
O N  
O N  
S1  
S2  
Front  
Rear  
• Silicon Avalanche Diode surge protection  
• Made in the U.S.A.  
2.2 DESCRIPTION  
Figure 1. Underside of the 1075 Showing Location of DIP Switches  
The two sets of DIP switches on the underside of the Model 1075  
will be referred to as S1, S2. Figure 2 shows the orientation of DIP  
Switches S1 and S2 with respect to “ON” and “OFF” positions.  
The Model 1075 KiloModem II X.21 Short Range Modem  
supports synchronous data rates of 32, 56 and 64 Kbps. Synchronous  
transmit clock options are internal, external and receive recover clock.  
Deriving power from a 9V DC wall-mount transformer, the Model 1075  
supports extended distances to 6 miles (9.7km) over 2 unconditioned  
twisted pairs.  
ON  
ON  
The Model 1075 incorporates two V.54 test modes (local analog  
loop and remote digital loop) that are activated by a tiny front panel  
switch. In addition, a built-in V.52 Bit Error Test (BER) test generator  
that outputs 511 and 511E bit patterns can also be controlled by a  
switch on the case. Six LED indicators monitor transmit data, receive  
data, control, indication, test mode (TM) and Error Status (ER). For  
protection against ground loops and transient surges, the Model 1075  
incorporates both isolation transformers and Silicon Avalanche Diode  
surge suppressors.  
OFF  
1
2
3
4
5
6
7
8
Figure 2. Close-up of DIP Switches Showing “ON” / “OFF” Positions  
Housed in a miniature ABS plastic case, the Model 1075 comes  
equipped with a female DB-15 connector and a choice of twisted pair  
interfaces (RJ-11 jack or RJ-45 jack).  
4
3
 
Switches S2-1 and S2-2: Data Rate  
3.1.1 Configuration Switch Set “S1”  
Switches S2-1 and S2-2 are set in combination to determine the  
synchronous data rate for the Model 1075.  
The switches on Switch S1 set V.54 Test Functions. Default  
settings and detailed descriptions for each switch are shown below.  
S2-1  
Off  
S2-2  
On  
Setting  
32 kbps  
S1 SUMMARY TABLE  
Position  
S1-1 thru S1-7  
S1-8  
Function  
Not Assigned  
Factory Default  
On  
On  
Off  
On  
56 kbps  
64 kbps  
Off  
V.54 Test Functions  
Off  
Enabled  
Switches S2-3 and S2-4: System Clock Mode  
Switches S1-1 through S1-7: Not Assigned  
Switch S1-8: V.54 Test Functions  
The setting for switches S2-3 and S2-4 determines the transmitter  
clocking mode for the Model 1075.  
S2-3  
On  
S2-4  
On  
Clock Mode  
Internal  
Description  
System clock  
generated internally  
Switch S1-8 enables or disables the Model 1075 V.54 loopback  
test modes.  
S1-8  
Off  
Activation  
Enabled  
Description  
V.54 test functions enabled  
On  
Off  
Off  
On  
External (DTE)  
System clock derived  
from terminal interface  
On  
Disabled  
V.54 test functions disabled  
Receive Recover  
System clock derived  
from the received line  
signal.  
3.1.2  
Configuration Switch Set “S2”  
Switch S2-5: Carrier Control  
The switches on Switch S2 set data rates, clock source, carrier  
control and front panel switch operation. Default settings and detailed  
descriptions for each switch are shown below.  
S2-5  
Off  
Carrier  
Always On  
Description  
Transmitter is always ON  
On  
Follows terminal  
Transmitter controlled by “Control”  
signal from X.21DTE (or by  
S2 SUMMARY TABLE  
“Indication” signal from X.21 DCE)  
Position  
S2-1  
S2-2  
S2-3  
S2-4  
S2-5  
S2-6  
S2-7  
S2-8  
Function  
Data Rate  
Factory Default  
On  
Switches S2-6 and S2-7: Not Assigned  
56 kbps  
}
Data Rate  
Off  
Switch S2-8: Front Panel Switch Enable/Disable  
Clock Mode  
On  
Internal  
}
Switch S2-8 determines whether the front panel switches may be  
used to perform diagnostic functions.  
Clock Mode  
On  
Carrier Control  
Not Assigned  
Not Assigned  
Front Panel Switches  
Off  
Off  
Off  
On  
Forced On  
S2-8  
On  
Activation  
Enabled  
Description  
Front panel switches may be used  
to activate/terminate diagnostics.  
Enabled  
Off  
Disabled  
Front panel switches will have no  
effect on operation of the unit.  
5
6
 
3.2.2 Location of the Internal Straps  
3.2 CONFIGURATION STRAPS  
Figure 5 (below) shows the location of the DCE/DTE switch and the  
JP1 strap on top side of the the PC board.  
In addition to the configuration switches described above, the  
Model 1075 is also equipped with two internal straps that set the  
DTE/DCE Configuration and the DB-15 Shield. In order to configure  
these straps, you must open the Model 1075 case.  
NOTE: Before opening the case, determine whether the default  
settings are correct for your application (see Sections 3.2.3 and  
3.2.4)  
JP1 Strap  
3.2.1 Opening the Case  
Front  
Rear  
To open the Model 1075 insert a flat head screw driver into an  
open slot on either side of the case, as in Figure 3. Twist the screw  
driver head slightly and the top half of the case will separate from the  
lower half, as in Figure 4, below.  
DTE  
D C E  
DTE/DCE Strap  
Figure 5 . Position of DTE/DCE and JP1 Jumper Straps on Model 1075 PC Board  
3.2.3 Setting the DCE/DTE Strap  
The X.21 interface on the Model 1075 is DCE/DTE switchable.  
The default setting is DCE, based upon how the Model 1075 sees its  
own orientation. When configured this way, the Model 1075 will want to  
connect to an X.21 DTE device. Re-positioning the DCE/DTE strap will  
enable the Model 1075 to connect to an X.21 DCE device (See Figure  
6, below).  
Figure 3. Opening the 1075 Case with a Small Screwdriver  
DTE  
D C E  
Figure 6 . Close-Up of Model 1075 PC Board With Close-up of DCE/DTE Strap  
Default Setting = “DCE”  
The X.21 DCE/DTE strap is located near the DB-15 connector on  
the PC board. The arrows on the top of the strap indicate the  
configuration of the Model 1075. For example, if the DCE arrows are  
pointing toward the DB-15 Connector, the Model 1075 is configured as  
a “DCE” and must connect to an X.21 DTE device.  
Figure 4. Opening the 1075 Case With a Small Screwdriver  
To close the case, fit the 2 halves together snugly and snap them  
back in place.  
To change the DCE/DTE orientation of the Model 1075 X.21  
interface, simply remove the strap and rotate it 180o so the appropriate  
arrows are pointing toward the DB-15 Connector.  
7
8
 
4.0 INSTALLATION  
3.2.4 Setting the JP1 Shield Strap  
When you have properly configured the configuration switches and  
straps, you are ready to connect the Model 1075 to connect to your  
system. This section tells you how to properly connect the Model 1075  
to the twisted pair.  
The setting of JP1 determines whether the shield (pin 1) of the  
X.21 interface is connected signal ground. In the default setting, DB-15  
shield is connected to signal ground. The X.21 shield is not connected  
to signal ground when the jumper is placed on pins 1 and 2 . See  
Figure 7, below.  
4.1 CONNECTION TO THE TWISTED PAIR INTERFACE  
The Model 1075 supports full or half duplex communication  
between two X.21 devices at distances to 6 miles (9.7 km) and data  
rates to 64 kbps. There are two essential requirements for installing  
the Model 1075:  
1
Front  
2
1. These units work in pairs. Therefore, you must have one  
Model 1075 (or compatible unit) at each end of a two twisted  
pair interface.  
Rear  
3
2. To function properly, the Model 1075 needs two twisted pairs  
of metallic wire. These pairs must be unconditioned, dry  
metallic wire, between 19 and 26 AWG (the higher number  
gauges may limit distance somewhat). Standard dial-up  
telephone circuits, or leased circuits that run through signal  
equalization equipment, are not acceptable.  
Figure 7. Jumper JP1 Orientation on the PC board  
Jumper 1: DB15 Shield  
Position  
1-2  
2-3  
DB15 Shield  
Not connected to signal ground  
Connected to signal ground (default)  
For your convenience, the Model 1075 is available with two  
different twisted pair interface options: RJ-11 jack or RJ-45 jack.  
4.1.1 Twisted Pair Connection Using RJ-11 OR RJ-45  
The RJ-11 and RJ-45 connectors on the Model 1075's twisted pair  
interface are pre-wired for a standard TELCO wiring environment. The  
signal/pin relationships are shown below.  
RJ-11  
SIGNAL  
RJ-45  
SIGNAL  
1...................GND  
2...................RCV  
3...................XMT  
4...................XMT  
5...................RCV  
6...................GND  
1 .................N/C  
2 .................GND  
3 .................RCV  
4 .................XMT  
5 .................XMT  
6 .................RCV  
7 .................GND  
8 .................N/C  
10  
9
 
4.3 AC POWER CONNECTIONS  
When connecting two Model 1075s, it is necessary to use a "cross-  
over" cable. The diagram below shows how a cross-over cable should  
be constructed for an environment where both Model 1075s use a 8-  
wire RJ-45 connector. Similar logic should be followed when using RJ-  
11 connectors or a combination of the two.  
Power is supplied to the Model 1075 by a 9 VDC, 1 A wall mount  
transformer. This transformer connects to the Model 1075 by means of  
a cannon jack on the rear panel. The Model 1075 is powered-up as  
soon as it is plugged into an AC outlet–there is no power switch.  
RJ-45 Cable (8-Wire)  
120 VAC Power (US)  
SIGNAL  
PIN#  
PIN#  
SIGNAL  
The 120 VAC adapter supplied with the standard version of the  
Model 1075 is a “wall mount” type, and may be plugged into any  
approved 120 VAC wall plug.  
N/C  
1
1
N/C  
GND†  
RCV  
XMT  
XMT  
RCV  
GND†  
N/C  
2-----------------------7  
3-----------------------5  
4-----------------------6  
5-----------------------3  
6-----------------------4  
7-----------------------2  
GND†  
XMT  
RCV  
RCV  
XMT  
GND†  
N/C  
230 VAC Power (IEC)  
The 230 VAC adapter supplied with the international version of the  
Model 1075 is equipped with an IEC-320 shrouded male connector.  
This connects with one of several available country-specific power  
cords (see the ordering information in Appendix C.) You may  
purchase these power cords from Patton Electronics at: (301) 975-  
1007; http://www.patton.com; or, [email protected]; or from a  
local vendor.  
8
8
Connection to ground is optional  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
Figure 8. Pin Number Assignments for RJ11 and RJ45 Modular Jacks  
4.2 CONNECTION TO X.21 INTERFACE  
To connect the Model 1075 to a piece of data terminal or data  
communications hardware, use a straight through DB-15 cable. Plug  
the cable directly into the DB-25 port on the rear of the Model 1060.  
If it is necessary to construct a special interface cable, please refer to  
the pinout diagrams in Appendix C.  
Notice! Any terminal cable connected to the Model 1075  
must be shielded cable, and the outer shield must be 360  
degree bonded–at both ends–to a metal or metalized backshell.  
11  
12  
 
5.0 OPERATION  
5.2 TEST MODES  
Once the Model 1075 is properly configured and installed, it should  
operate transparently—as if it were a standard cable connection.  
Section 5.0 describes the LED status monitors and the built-in V.52 and  
V.54 test modes. The Model 1075 is powered by a 9V DC external wall  
mount transformer. To power up the unit, connect the power supply  
cord to the power jack on the rear of the Model 1075 and plug the  
power adapter into the wall. There is no ON/OFF switch.  
The Model 1075 offers two V.54 test modes to evaluate the  
condition of the modems and the communication link. These tests are  
activated from the front panel.  
5.2.1 Local Analog Loopback (LAL)  
The Local Analog Loopback (LAL) test checks the operation of the  
local Model 1075, and is performed separately on each unit. Any data  
sent to the local Model 1075 in this test mode will be echoed (returned)  
back to the user device. For example, characters typed on the  
keyboard of a terminal will appear on the terminal screen. To perform a  
LAL test, follow these steps.  
5.1 LED STATUS MONITORS  
The Model 1075 features six front panel LEDs that indicate the  
status of the unit and the communication link. Figure 9 shows the front  
panel location of each LED. Following Figure 9 is a description of each  
LEDs function.  
A. Activate LAL. This may by moving the front panel toggle  
switch DOWN to LAL. Once LAL is activated, the Model 1075  
transmitter output is connected to its own receiver. The test  
LED should be lit.  
Model 1075 KiloModem-II 56/64K Baseband Modem  
V.54 Test  
(Control)  
RTS  
(Ind)  
CD  
Modes  
511 -  
511E -  
TD  
RD  
Error  
Test  
- Remote  
- Normal  
- Local  
B. Verify that the data terminal equipment is operating properly  
and can be used for a test. If a fault is indicated, call a  
technician or replace the unit.  
Figure 9 - Front Panel of the Patton Model 1075  
C. Perform a Bit Error Rate (BER) test on each unit. If the BER  
test equipment indicates no faults, but the data terminal  
indicates a fault, follow the manufacturer’s checkout  
procedures for the data terminal. Also, check the interface  
cable between the terminal and the Model 1075.  
TD  
(Transmit Data) Glows red to indicate an idle condition  
or binary 1 data. Glows green to indicate an active  
condition or binary 0 data. Glows orange to indicate  
rapidly changing data. Source: DTE.  
5.2.2 Remote Digital Loopback (RDL)  
RD  
(Receive Data) Glows red to indicate an idle condition  
or binary 1 data. Glows green to indicate an active  
condition or binary 0 data. Glows orange to indicate  
rapidly changing data. Source: DCE.  
The RDL test checks the performance of both the local and remote  
Model 1075, and the communication link between them. Any  
characters sent to the remote Model 1075 in this test mode will be  
returned back to the originating device. 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 1075 and looped  
back. To perform an RDL test, follow these steps:  
Control  
Glows green to indicate that Control from DTE is active.  
Red indicates that Control from the DTE is inactive.  
Indication Glows green to indicate that the Indication from DCE is  
active. Red indicates that the Indication from the DCE  
is inactive.  
A. Activate RDL by moving the front panel toggle switch UP to  
RDL.  
Error  
Test  
Glows red when errors are detected during the 511 or  
511/E BER tests.  
B. Perform a BER test on the system.  
Glows red when the V.54 loopback test or V.52 BER  
tests are initiated.  
(cont)  
14  
13  
 
APPENDIX A  
C. If the BER test equipment indicates a fault, and the Local  
Analog Loopback test was successful for both Model 1075s,  
you may have a problem with the twisted pair line between the  
modems. You should then check the twisted pair line for  
proper connections and continuity.  
PATTON MODEL 1075 SPECIFICATIONS  
Approvals:  
CE European Directives  
DTE/DCE I/F:  
X.21 DB15F DCE or DTE, EIA RS-422  
Compliant  
5.2.3 How to Use the V.52 BER Test Independently  
Compatibility:  
Transmission  
Format:  
Transmission  
Line Interface:  
1035, 1045 , 1075, 1080A, 1090 series units  
The V.52 BER test can be used independently of the V.54 loopback  
tests. This requires two operators: one to initiate and monitor the test  
at the local Model 1075, and one at the remote Model 1075. To use the  
V.52 BER test by itself, both operators should simultaneously follow  
these steps:  
Synchronous  
Unconditioned twisted pair 19 - 26 AWG  
Externally accessible RJ-45 (RJ-11  
Optional)  
Clock  
Internal, External and Network (Receive  
Recover)  
Up to 6 miles (9.7km)  
1. Locate the 511/511E toggle switch on the front panel of the  
1075 and move it UP. This activates the V.52 BER test mode  
and transmits a 511 test pattern to the other unit. If any errors  
are present, the receiving modem’s red Error LED will blink  
sporadically. For this test to work, make sure the 511 switch  
on both Model 1075s is on.  
Distance:  
Interfaces:  
Data Rates:  
Isolation:  
Surge Protection:  
Carrier Control  
CCITT/ITU X.21  
32, 56 and 64 Kbps (switch selectable)  
1500V RMS via isolation transformers  
IEC-801-S, Level 2, 1kV  
Constantly on or Controlled by “Control”  
from DTE device (DCE mode) or  
“Indication” from DCE device (DTE mode)  
DB-15 female  
2. If the test indicates no errors are present, move the V.52  
toggle switch DOWN, activating the 511/E test with errors  
present. If the test is working properly, the receiving modem's  
red Error LED will blink regularly. A successful 511/E test will  
confirm that the link is in place, and that the Model 1075’s  
built in 511 generator and detector are working properly.  
Connectors:  
RJ-11 or RJ-45 on line side  
9V DC wall-mount transformer, 200mA  
Power Supply:  
Temperature  
Range:  
0-60°C (32-140°F)  
Altitude:  
Humidity:  
Dimensions:  
Power Options:  
0-15,000 feet  
5 to 95% noncondensing  
1.54H x4.1”W x 3.7”D  
120 VAC 50/60Hz, external transformer;  
230 VAC 50/60Hz, external transformer  
2.5 lbs. (1.1 Kg)  
5.3 POWER-DOWN  
There is no power switch on the Model 1075. You turn it off by  
unplugging the AC power adapter from the wall.  
Weight:  
15  
16  
 
APPENDIX B  
APPENDIX C  
MODEL 1075 FACTORY REPLACEMENT  
PARTS AND ACCESSORIES  
MODEL 1075 X.21 Interface  
DB15 Female  
Patton Model #  
Description  
Pin  
Signal  
Source  
1
2
3
4
5
6
7
8
Shield  
-
1075 ................................KiloModem II X.21 Short Range Modem  
0805B..............................120V Wall Mount AC Adapter  
08059DCI ........................230V AC Adapter (No Power Cord)  
0805US ...........................American Power Cord  
0805EUR.........................European Power Cord CEE 7  
0805UK ...........................United Kingdom Power Cord  
0805AUS.........................Australia/New Zealand Power Cord  
0805DEN.........................Denmark Power Cord  
0805FR............................France/Belgium Power Cord  
0805IN.............................India Power Cord  
0805IS.............................Israel Power Cord  
0805JAP..........................Japan Power Cord  
0805SW...........................Switzerland Power Cord  
Transmit (a)  
Control (a)  
Receive (a)  
Indication (a)  
System Clock (a) DCE  
-
Signal Ground  
Transmit (b)  
Control (b)  
Receive (b)  
Indication (b)  
System Clock (b) DCE  
-
-
DTE  
DTE  
DCE  
DCE  
-
-
9
DTE  
DTE  
DCE  
DCE  
10  
11  
12  
13  
14  
15  
-
-
17  
18  
 
APPENDIX D  
Dear Valued Customer,  
Thank you for purchasing Patton Electronics products! We do  
MODEL 1075 PIN CONFIGURATIONS  
BLOCK DIAGRAM  
appreciate your business. I trust that you find this user manual helpful.  
We manufacture one of the widest selections of data communications  
products in the world including CSU/DSU's, network termination units,  
powered and self-powered short range modems, fiber optic modems, interface  
converters, baluns, electronic data switches, data-line surge protectors,  
multiplexers, transceivers, hubs, print servers and much more. We produce  
these products at our Gaithersburg, MD, USA, facility, and can custom  
manufacture products for your unique needs.  
We would like to hear from you. Please contact us in any of the  
following ways to tell us how you like this product and how we can meet your  
product needs today and in the future.  
Web:  
(301) 975-1000  
(301) 975-1007  
(301) 869-9293  
Sales E-mail:  
Support E-mail:  
Phone - Sales  
Phone - Support  
Fax:  
Mail:  
Patton Electronics Company  
7622 Rickenbacker Drive  
Gaithersburg, MD 20879 USA  
We are committed to a quality product at a quality price. Patton  
Electronics is BABT and ISO 9001 certified. We meet and exceed the highest  
standards in the industry (CE, UL, etc.).  
It is our business to serve you. If you are not satisfied with any  
aspect of this product or the service provided from Patton Electronics or its  
distributors, please let us know.  
Thank you.  
Burton A.Patton  
Vice President  
P.S. Please tell us where you purchased this product:  
Copyright ©  
Patton Electronics Company  
All Rights Reserved  
19  
 

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