Patton electronic Network Card 1015 User Manual

USER  
MANUAL  
MODEL 1015 and  
1015S  
DB-15 Async  
Short Range Modem  
SALES OFFICE  
(301) 975-1000  
TECHNICAL SUPPORT  
(301) 975-1007  
Part# 07M1015-B  
Doc# 024011UB  
Revised 5/24/94  
 
3.0 CONFIGURATION  
4.0 INSTALLATION  
The Model 1015 is designed to be easy to use. There are no  
internal jumpers or configuration switches to set, so there is no need to  
open the case to configure the unit (you may need to open the case for  
wire connection—refer to section 4.0). However, in some models, you  
may have to set the external DCE/DTE switch.  
Once you have properly configured the DCE/DTE switch, you are  
ready to connect the Model 1015 to your system. This section tells  
you how to properly connect the Model 1015 to the twisted pair and  
RS-232 interfaces, and how to operate the Model 1015.  
The figure below shows both versions of the Model 1015. If your  
model looks like Figure 1, follow the instructions in Section 3.1. If your  
Model 1015 looks like Figure 2, your unit will always operate in DCE  
mode. Follow the instructions in Section 4.0.  
4.1 CONNECTION TO THE TWISTED PAIR INTERFACE  
The Model 1015 supports data-only communication between two  
RS-232 devices at distances to 17 miles and data rates to 19.2 Kbps.  
There are two essential requirements for installing the Model 1015:  
1. These units work in pairs. Therefore, you must have one Model  
1015 at each end of a two twisted pair interface.  
Terminal  
Block  
2. To function properly, the Model 1015 needs two twisted pairs of  
metallic wire. The pairs must be unconditioned, dry metallic wire,  
between 19 and 26 AWG (the higher number gauges may limit  
distance). Standard dial-up telephone circuits, or leased circuits  
that run through signal equalization equipment are not acceptable.  
DCE/DTE  
Switch  
Terminal  
Block  
For your convenience, the Model 1015 is available with three dif-  
ferent twisted pair interfaces: RJ-11 jack, RJ-45 jack and terminal  
blocks with strain relief.  
Figure 1  
Figure 2  
4.1.1 TWISTED PAIR CONNECTION USING RJ-11 OR RJ-45  
3.1 SETTING THE DCE/DTE SWITCH  
The RJ-11 and RJ-45 connectors on the Model 1015’s twisted pair  
interface are pre-wired for a standard TELCO wiring environment (see  
Figure 3). The table on the following page shows the signal/pin rela-  
tionships:  
If your Model 1015 looks like Figure 1, it comes equipped with an  
external DCE/DTE switch and requires special attention. If the device  
connected to the Model 1015 is a modem or multiplexer (or is wired  
like one), move the switch to “DTE”. This causes the Model 1015 to  
behave like Data Terminal Equipment and transmit data on pin 1.  
1 - Blue  
1 - Blue  
2 - Orange  
3 - Black  
4 - Red  
2 - Yellow  
3 - Green  
4 - Red  
5 - Green  
6 - Yellow  
7 - Brown  
8 - Slate  
5 - Black  
6 - White  
DCE  
DTE  
Figure 3. AT&T standard modular color codes  
If the device connected to the Model 1015 is a PC, terminal or  
host computer (or is wired like one), move the switch to “DCE”. This  
setting causes the Model 1015 to behave like Data Communications  
Equipment and transmit data on pin 9.  
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1. Open the unit by gently inserting a screwdriver between the  
DB-15 connector and the lip of the plastic case (see below). You don’t  
have to worry about breaking the plastic, but be careful not to bend the  
D-sub connector.  
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  
When connecting two Model 1015s, it is necessary to use a  
“cross-over” cable. The diagram below shows how a crossover cable  
should be constructed for an environment where both Model 1015s use  
a
4-wire RJ-11 connector. Similar logic should be followed when  
using RJ-45 connectors or a combination of the two.  
SIGNAL PIN# COLOR‡  
COLOR  
PIN# SIGNAL  
GND†  
RCV-  
XMT+  
XMT-  
RCV+  
GND†  
1
2
3
4
5
6
Blue --------------------White  
6
4
5
2
3
1
GND†  
XMT-  
RCV+  
RCV-  
XMT+  
GND†  
Yellow------------------Red  
Green ------------------Black  
Red---------------------Yellow  
Black -------------------Green  
White-------------------Blue  
Once the unit has been opened, you will be able to see the termi-  
nal blocks located at the rear of the PC board.  
Connection to ground is optional  
Standard color codes—yours may be different  
2. Strip the outer insulation from the twisted pairs about one inch  
from the end.  
4.1.2 TWISTED PAIR CONNECTION USING TERMINAL BLOCKS  
If your RS-232 application requires you to connect two pairs of  
bare wires to the Model 1015, you will need to open the case to access  
the terminal blocks. The following instructions will tell you how to open  
the case, connect the bare wires to the terminal blocks, and fasten the  
strain relief collar in place so that the wires won’t pull loose.  
3. Strip the insulation on each of the twisted pair wires about .25”.  
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6
 
4. Connect one pair of wires to XMT+ and XMT- (transmit positive  
and negative) on the terminal block, making careful note of which color  
is positive, and which color is negative.  
8. Place the 2 halves of the strain relief assembly on either side  
of the telephone wire and press together very lightly. Slide the assem-  
bly so that it is about 2 inches from the terminal posts and press  
together firmly. If your cable diameter is too small or too large for our  
strain relief, please contact our technical support. We have strain relief  
assemblies to accommodate most cable diameters.  
5. Connect the other pair of wires to RCV+ and RCV- (receive  
positive and negative) on the terminal block, again making careful note  
of which color is positive and which color is negative.  
Ultimately, you will want to construct a two pair crossover cable  
that makes a connection with the RS-232 device as shown below:  
V +  
XMT +  
XMT -  
G
RCV -  
RCV +  
RCV+  
RCV -  
G
XMT -  
XMT +  
One Pair  
One Pair  
}
}
To Shield (Optional)  
6. If there is a shield around the telephone cable, it may be con-  
nected to “G” on the terminal block. To avoid ground loops, we recom-  
mend connecting the shield at the computer end only. A ground wire is  
not necessary for proper operation of the Model 1015.  
9. Insert the strain relief assembly with the wire going through it  
into the slot in the bottom half of the modem case and set it into the  
recess in the case.  
7. When you finish connecting the wires to the terminal block, the  
assembly should resemble the diagram below:  
V +  
7
8
 
APPENDIX A  
10. TIP the top half of the case as necessary to place it over the  
strain relief assembly. Do not snap the case together yet.  
PATTON MOCEL 1015 SPECIFICATIONS  
Transmission Format: Asynchronous  
Data Rate:  
0 to 19,200 bps (no strapping)  
Surge Protection:  
600W peak power dissipation at 1 mS  
(10 x 1000 µs exponential waveform) and  
response time of 1.0 pS  
Control Signal:  
CTS (Pin 10) turns ON immediately after  
the terminal raises RTS (Pin 2); DSR (Pin 3)  
turns on when powered up; DCD (Pin 12)  
turns on immediately after the terminal  
raises DTR (Pin 4)  
11. Insert one captive screw through a saddle washer and then  
insert the entire piece through the hole in the DB-15 end of the case.  
Snap that side of the case closed. Repeat the process for the other  
side. This completes cable installation.  
Transmit Line:  
Transmit Mode:  
Transmit Level:  
Line Connection:  
4 wire, unconditioned line (2 twisted pairs)  
4.2 CONNECTION TO THE RS-232 INTERFACE  
Full duplex, 4-wire  
0 dBm  
Once you have configured the Model 1015 for DTE or DCE and  
connected the twisted pair wires correctly, simply plug the 1015 directly  
into the DB-15 port of the RS-232 device. After doing so, remember to  
insert and tighten the two captive connector screws.  
RJ-11 or RJ-45 jack or 5 screw terminal  
posts (4 wires and 1 ground) and a strain  
relief insert  
Note: If you must use a cable to connect the Model 1015 to the  
RS-232, make sure it is a straight through cable of the shortest possi-  
ble length—we recommend 6 feet or less. The Model 1015 requires a  
cable that incorporates pins 1, 2, 3, 4, 9, 10, 11 and 12.  
Power Supply:  
No external power required, uses ultra low  
power from EIA data and control signals  
Size:  
2.6” x 1.3” x 0.75”  
4.3 OPERATING THE MODEL 1015  
Once the Model 1015 is properly installed, it should operate trans-  
parently—as if it were a standard cable connection. Operating power  
is derived from the RS-232 data and control signals; there is no  
“ON/OFF” switch. All data signals from the RS-232 interface are  
passed straight through. All control signals from the RS-232 interface  
are looped back.  
Note: If your system requires hardware flow control, you will need  
the Patton Model 1012 or Model 1060 Short Range Modem. Call  
Patton Customer Service at (301) 975-1007 for more information.  
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APPENDIX B  
BLOCK DIAGRAM  
11  
 

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