Patton electronic Network Card Asynchronous User Manual

Dear Valued Customer,  
Thank you for purchasing Patton Electronics products! We do  
appreciate your business. I trust that you find this user manual helpful.  
USER  
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.  
MANUAL  
MODEL 1012ARC  
Asynchronous,  
Two-Channel  
Short Range Modem  
Rack Card  
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:  
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Part #07M1012ARC-C  
Doc #040041UC  
Revised 9/10/97  
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 Technical Support at (301) 975-1007.  
The Model 1012ARC rack card is easy to set up since there are  
only two configuration straps. Figure 1 (below) shows the location of  
these straps on the Model 1012ARC PC board.  
RTS Channel A  
2.1 FEATURES  
• Houses two short range modems  
• Full or half duplex  
• Asynchronous data rates to 38.4 Kbps  
• Point-to-point or multipoint  
• Automatic equalization and gain control  
• Software and hardware handshaking  
• Distances to 6 miles over two unconditioned twisted pair  
• Transformer isolation  
RTS Channel B  
Figure 1. Model 1012ARC, showing straps locations  
• Silicon Avalanche Diode surge protection  
• Mounts in Patton’s rack chassis  
• Made in USA  
3.1 MOVING THE CONFIGURATION STRAPS  
Figure 2 shows how to move the configuration straps. Note that the  
Model 1012ARC only has two pegs, thus the straps can only be  
“installed” or “removed”. The rear card uses three pegs, and can be on  
either pegs 1 and 2, or pegs 2 and 3.  
2.2 DESCRIPTION  
The Patton Model 1012ARC is a miniature rack card designed to  
house two asynchronous short range modems. Operating full or half  
duplex at data rates to 38.4 Kbps, the Model 1012ARC supports point-  
to-point or multidrop applications and offers automatic equalization and  
gain control. The Model 1012ARC supports distances up to 6 miles  
over two twisted pair. Built-in transformer isolation and surge  
protection provide protection against ground potential differences and  
AC/DC over-voltages, making the Model 1012ARC ideal for  
connections between two buildings.  
1
2
3
1
2
3
1
2
3
Figure 2. Orientation of interface card straps  
The Model 1012ARC is designed to mount in Patton’s Model  
1000R16P rack chassis. This 16-card chassis has a switchable  
120/240 volt power supply and uses mid-plane architecture: The front  
card can be plugged into different rear cards. This means that the  
1012ARC can have several interface options, and can be switched with  
other Patton short haul cards. The rear card is available with an RJ-45  
connection for each RS-232 channel and either RJ-11 or RJ-45  
connections for twisted pair.  
3.2 SETTING THE RTS/DCD STRAPS  
Each RTS/DCD strap affects one of your modems. Their setting  
determines how the respective transmitters (i.e., carrier) are activated.  
When these straps are installed, the Model 1012ARC transmitter is  
CONTROLLED CARRIER. When these straps are removed, the  
transmitter is CONSTANT CARRIER. Each strap may be configured  
separately.  
3
4
 
3.3 REAR CARD CONFIGURATION  
The table below provides a summary of strap functions for both of  
the rear cards. Following Figure 5 is a description of each strap and its  
function.  
After you have configured the Model 1012ARC, you will need to set  
up your rear card. The Model 1012ARC has two interface card options:  
the 1Q11 (which comes equipped with two RJ-11 ports and two RJ-45  
ports) and the 1Q45 (which comes equipped with four RJ-45 ports).  
Figure 3 illustrates these two different options.  
INTERFACE CARD STRAP SUMMARY TABLE #1  
Strap  
JB2  
JB4  
JB5  
JB6  
JB7  
Position 1&2  
Line A Shield  
Line B Shield  
SGND & FRGND  
DTE A DSR†  
Position 2&3  
No Shield†  
No Shield†  
Open†  
1Q11  
1Q45  
N/A  
} RJ-11  
RJ-45  
RJ-45  
RJ-45  
RJ-45  
Twisted Pair  
Line Connection  
Twisted Pair Line  
Connection  
DTE B DSR†  
N/A  
}
RJ-11  
Summary of strap settings, indicates factory default  
}
RJ-45  
RS-232  
Connection  
RS-232  
Connection  
JB2 & JB4: Line A Shield & Line B Shield  
}
RJ-45  
This strap pertains to the line interface. In the connected (closed)  
position, the strap links RJ-11 pins 1 and 6 (RJ-45 pins 2 and 7) to  
frame ground. These pins can be used as connections for the twisted  
pair cable shield. In the open (disconnected) position, pins 1 and 6 (or  
2 and 7) remain connected, but are “lifted” from frame ground.  
Figure 3. Model 1012ARC rear interface card options  
Prior to installation, you should examine the rear card you have  
selected and ensure that it is configured for your application. Each rear  
card is configured by setting straps on the PC board. Section 3.4  
describes the strap locations and settings for each card.  
JB2  
Setting  
Position 1&2  
Position 2&3  
Line A Shield Connected  
No Shield (default)  
3.4 REAR CARD STRAP SETTINGS  
JB4  
Position 1&2  
Position 2&3  
Setting  
Line B Shield Connected  
No Shield (default)  
Figure 4 shows the strap locations for the 1Q11 and the 1Q45 rear  
cards. These straps determine various grounding characteristics for  
the RS-232 and twisted pair lines.  
JB5: SGND & FRGND  
1
2
3
JP2  
(Unit A)  
In the connected (closed) position, this strap links signal ground  
and frame ground. In the open (disconnected) position, pin 1 is “lifted”  
from frame ground.  
Converter  
twisted pair  
}
(Unit B)  
JP4  
1
2
3
JB5  
Setting  
(Unit A)  
1
2
3
Position 1&2  
Position 2&3  
SGND and FRGND Connected  
SGND and FRGND Not Connected  
(default)  
Terminal  
}
JP5  
(Unit B)  
JP6  
1
2
3
1
2
3
JP7  
Figure 4. Strap locations for both rear cards  
5
6
 
4.0 INSTALLATION  
JB6 & JB7: DTE as DSR or RI  
This section describes the functions of the Model 1000R16 rack  
chassis, tells how to install front and rear Model 1012ARC cards and  
provides diagrams for correctly wiring the interface connections.  
Because this rear card is designed to function with a variety of rack  
cards, it comes equipped with two strap positions. However, when  
used with the Model 1012ARC, this strap must be installed only in one  
position. Place the jumper across pins 1&2 so that the terminal (DTE)  
sees DSR as high when the DTE raises DTR. The other positions—  
across pins 2&3, are for Ring Indicate as defined by EIA/TIA-561. The  
RI function is irrelevant (and on the Model 1012ARC is also  
disconnected) and can cause improper operation if the jumper is  
installed incorrectly.  
4.1 THE MODEL 1000R16 RACK CHASSIS  
The Model 1000R16 Rack Chassis (Figure 5) has sixteen short  
range modem card slots, plus its own power supply. Measuring only  
3.5” high, the Model 1000R16 occupies only 2U in a 19” rack. Sturdy  
front handles allow the Model 1000R16 to be transported conveniently.  
JB6 & JB7  
Position 1&2  
Position 2&3  
Setting  
DSR (default)  
N/A  
Figure 5. Model 1000R16 Rack Chassis with power supply  
4.1.1 The Rack Power Supply  
The power supply included in the Model 1000R16 rack uses the  
same mid-plane architecture as the modem cards. The front card of  
the power supply slides in from the front, and the rear card slides in  
from the rear. They plug into one another in the middle of the rack.  
The front card is then secured by thumb screws and the rear card by  
conventional metal screws.  
WARNING! There are no user-serviceable parts in the  
power supply section of the Model 1012ARC Series.  
Voltage setting changes and fuse replacement should only  
be performed by qualified service personnel. Contact  
Patton Electronics Technical support at (301)975-1007 for  
more information.  
(continued)  
8
7
 
Switching the Power Supply On and Off  
4.4 TWISTED PAIR CONNECTION  
The power supply on/off switch is located on the front panel.  
When plugged in and switched on, the power LED will glow. Since the  
Model 1000R16 is “hot swappable”, you do not need to turn off the  
power before removing rack cards. The power supply may be switched  
off at any time without harming the installed cards.  
The Model 1012ARC operates over two twisted pair. In all  
applications, the twisted pair wire must be 26 AWG or thicker,  
unconditioned, dry metallic wire. Both shielded and unshielded wire  
yield favorable results. Note: The Model 1012ARC can only  
communicate in a closed data circuit with another Model 1012ARC.  
Dial-up analog circuits, such as those used with a standard Hayes-type  
modem, are not acceptable. For further information about acceptable  
wire grades, please refer to the diagrams in Appendix B.  
NOTE: Please refer to the Model 1000RP Series User Manual AC  
and DC Rack Mount Power Supplies for fuse and power card  
replacement information.  
4.4.1 POINT-TO-POINT TWISTED PAIR CONNECTION  
4.2 INSTALLING THE MODEL 1012ARC INTO THE CHASSIS  
The 6-position RJ-11 and 8-position RJ-45 jack options for the  
Model 1012ARC (always the upper jack on the rear interface card) are  
pre-wired for a standard TELCO wiring environment. Connection of a  
4-wire twisted pair circuit between two or more Model 1012ARCs  
requires a crossover cable as shown in the following charts.  
The Model 1012ARC is comprised of a front card and a rear card.  
The two cards meet inside the rack chassis and plug into each other  
via mating 50 pin card edge connectors. Use the following steps to  
install each Model 1012ARC into the Model 1000R16 rack chassis:  
1. Slide the rear card into the back of the chassis along the metal  
rails.  
RJ-11  
SIGNAL PIN#  
COLOR‡  
COLOR PIN#  
SIGNAL  
2. Secure the rear card using the metal screws provided.  
3. Slide the card into the front of the chassis. It should meet the rear  
card when it is almost in the chassis.  
GND†  
RCV-◊  
XMT+  
XMT-  
RCV+  
GND†  
1
2
3
4
5
6
Blue.................White  
Yellow...............Red  
Green...............Black  
Red ..................Yellow  
Black ................Green  
White................Blue  
6
4
5
2
3
1
GND†  
XMT-  
RCV+  
RCV-  
XMT+  
GND†  
4. Push the front card gently into the card-edge receptacle of the  
rear card. It should “click” into place.  
5. Secure the front card using the thumb screws.  
NOTE: Since the Model 1000R16 chassis allows “hot swapping” of  
cards, it is not necessary to turn the power off when you install or  
remove a Model 1012ARC.  
RJ-45  
SIGNAL PIN#  
COLOR‡  
COLOR PIN#  
SIGNAL  
4.3 TERMINAL INTERFACE CONNECTION  
GND†  
RCV-  
XMT+  
XMT-  
RCV+  
GND†  
2
3
4
5
6
7
Orange.............Brown  
Black................Green  
Red..................Yellow  
Green...............Black  
Yellow ..............Red  
Brown ..............Orange  
7
5
6
3
4
2
GND†  
XMT-  
RCV+  
RCV-  
XMT+  
GND†  
The RS-232 ports are always the lower ports on the interface card.  
The 10-pin RJ-45 is pinned according Patton’s Modified Modular  
Interface Standard (based on the EIA/TIA-561Standard). For specific  
interface pin-outs, please refer to the diagrams in Appendix D.  
The Model 1012ARC is wired as a DCE (Data Circuit-Terminating  
Equipment). Therefore, it wants to connect to a DTE (Data Termination  
Equipment). If your RS-232 output device is a DTE, you may need to  
use a special cable (such as a DB-25 to modular cable). If your  
RS-232 output device is DCE, call Technical Support at  
(301) 975-1007 for specific installation instructions.  
9
Connection to ground is optional  
Standard color codes—yours may be different  
10  
 
5.0 OPERATION  
4.4.2 MULTIPOINT TWISTED PAIR CONNECTION  
Once you have configured each Model 1012ARC and connected  
the cables, you are ready to operate the units. Section 5.0 describes  
the LED status monitors and the power-up procedure.  
The Model 1012ARC supports multipoint applications using a star  
topology. Maximum distance between the units will vary based upon  
the number of drops, data rate, wire gauge, etc. Call Patton Technical  
Support for specific distance estimates. Figure 6 shows how to wire  
the cables properly for a Model 1012ARC star topology. Note that the  
ground connection is not needed.  
5.1 LED STATUS MONITORS  
The Model 1012ARC features thirteen front panel status LEDs that  
indicate the condition of the modem and communication link. Figure 8  
shows the relative front panel positions of the LEDs. Following Figure  
8 is a description of each LED’s function.  
HOST  
FIRST SLAVE  
SECOND SLAVE  
RCV+  
XMT+  
RCV+  
Model 1012ARC  
XMT-  
RCV+  
RCV-  
RCV-  
XMT+  
XMT-  
Power  
TD  
RCV-  
Unit  
RD  
A
Channel A  
Channel B  
CD  
TD  
RD  
CD  
XMT+  
Unit  
B
XMT-  
Figure 6. Star wiring for Model 1012ARC host and slaves  
Figure 8. The Model 1012ARC front panel, showing LED positions  
1 - Blue  
1 - Blue  
2 - Orange  
3 - Black  
4 - Red  
2 - Yellow  
3 - Green  
4 - Red  
5 - Green  
6 - Yellow  
7 - Brown  
8 - Slate  
• The “PWR” LED glows when power is being applied to the  
modem card through its mid-plane chassis connection.  
5 - Black  
6 - White  
• The “TD” and “RD” indicators glow green to show a positive  
voltage on the interface, and glow red to show negative voltage or  
an idle data state.  
Figure 7. AT&T standard modular color codes  
• The “CD” indicators glow green to show a positive voltage on the  
interface, and glow red to show negative voltage or an idle data  
state.  
Notice! Any modular twisted pair cable connected to the  
Model 1012ARC must be shielded cable, and the outer shield  
must be properly terminated to a shielded modular plug on both  
ends of the cable.  
11  
12  
 
APPENDIX A  
SPECIFICATIONS  
5.2 POWER-UP  
There is no power switch on the Model 1012ARC: Power is  
automatically applied to the Model 1012ARC when its card-edge  
connector makes contact with the chassis’ mid-plane socket, or when  
the chassis’ power supply is turned on. The Model 1012ARC is a “hot  
swappable” card—it will not be damaged by plugging it in or removing  
it while the rack’s power supply is switched on.  
Transmission Format: Asynchronous, half or full duplex  
Transmission Line: Two unconditioned twisted pair 19 - 26 AWG  
Transmit Level: -6 dBm  
Operation: Point-to-point or multipoint  
When the local and remote Model 1012ARCs are both powered up and  
are passing data normally, the following LED conditions will exist:  
Interfaces: EIA RS-232, CCITT V.24  
• PWR = solid green  
• TD & RD = flashing  
• CD = solid green  
Data Rates: To 38.4 Kbps  
Isolation: Minimum 1500 V RMS transformer coupled  
Surge Protection: Silicon Avalanche Diodes  
RTS/CTS Delay: 40mS  
Connectors: RJ-45 on RS-232 side; RJ-11 or RJ-45 on line side  
Power Supply: Rack-mount power supply is switchable between  
120V and 240V AC; rack chassis supplies 10V AC to the Model  
1012ARC, typical consumption is 700 mW  
Internal Interface: Connection to the Model 1000R16 rack chassis  
via 50 pin male card edge  
Fuse: 400mA for 120V applications; 200mA for 240V applications  
Temperature Range: 0-50°C (32-122°F)  
Altitude: 0-15,000 feet  
Humidity: Up to 95% non-condensing  
Dimensions: 0.95”w x 3.1”h x 5.4”l  
13  
14  
 
APPENDIX B  
CABLE RECOMMENDATIONS  
APPENDIX C  
FACTORY REPLACEMENT PARTS  
The Patton Model 1012ARC rack system features interchangeable  
rear cards, power cords/fuses for international various operating  
environments and other user-replaceable parts. Model numbers and  
descriptions for these parts are listed below:  
The Patton Model 1012ARC operates at frequencies of 20kHz or  
less and has been performance tested by Patton technicians using  
twisted-pair cable with the following characteristics:  
Wire Gauge  
Capacitance  
Resistance  
Patton Model #  
Description  
19 AWG  
22 AWG  
24 AWG  
83nf/mi or 15.72 pf/ft.  
83nf/mi or 15.72 pf/ft.  
83nf/mi or 15.72 pf/ft.  
.0163 Ohms/ft.  
.0326 Ohms/ft.  
.05165 Ohms/ft.  
1000RPEM..........................120/240V Rear Power Entry Module  
1000RPSM-2.......................120/240V Front Power Supply Module  
1000RPEM-DC ...................DC Rear Power Entry Module  
1000RPSM-48A ..................48V Front Power Supply Module  
1000RPEM-V ......................120/240V CE Compliant Rear Power  
Entry Module  
Using or simulating cable with the above characteristics, the  
following data rate/distance results were obtained by Patton during  
bench tests:  
1000RPSM-V ......................120/240V CE Compliant Front Power  
Supply Module  
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  
Data Rate (Bps)  
Gauge (AWG) / Distance (Mi)  
19  
24  
26  
Up to 38,400  
6.0  
3.5  
2.0  
To gain optimum performance from the Model 1012ARC, please  
keep the following guidelines in mind:  
0805IS.................................Israel Power Cord  
0805JAP..............................Japan Power Cord  
0805SW ..............................Switzerland Power Cord  
Always use twisted pair wire—this is not an option.  
• Use twisted pair wire with a capacitance of 20pf/ft or less.  
0516FPB1 ...........................Single Width Blank Front Panel  
0516FPB4 ...........................4-Wide Blank Front Panel  
0516RPB1...........................Single Width Blank Rear Panel  
0516RPB4...........................4-Wide Blank Rear Panel  
• Avoid twisted pair wire thinner than 26 AWG (i.e. avoid AWG  
numbers higher AWG numbers than 26)  
• Use of twisted pair with a resistance greater than the above  
specifications may cause a reduction in maximum distance  
obtainable. Functionality should not be affected.  
0821R4................................400 mA Fuse (5x20mm)  
Littlefuse 239.400 or equivalent  
0821R2................................200 mA Fuse (5x20mm)  
Littlefuse 239.200 or equivalent  
• Many environmental factors can affect the maximum  
distances obtainable at a particular site. Use the above  
data rate/distance table as a general guideline only.  
056S1..................................Set of 16 #4 pan head screws/washers  
15  
16  
 
APPENDIX E  
BLOCK DIAGRAM  
APPENDIX D  
INTERFACE SETTINGS  
PATTON MODULAR INTERFACE - 8/10 Wire RJ-45  
Contact Number  
Circuit  
Description  
1
2
N/A  
Not Used  
DSR  
125  
3
109  
Received Line Signal Indicator  
DTE Ready  
4
108 / 2  
102  
5
Signal Common  
6
104  
Received Data  
7
103  
Transmitted Data  
8
106  
Clear to Send  
9
105 / 133  
N/A  
Request to Send / Ready for Receiving  
Not Used  
10  
Pins 2-9 conform to the EIA/TIA-561 eight position non-synchronous interface standard.  
Copyright ©  
Patton Electronics Company  
All Rights Reserved  
17  
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