APPENDIX A
PATTON MODEL 1003 SPECIFICATIONS
Transmission Format:
Asynchronous
Transmit Line:
2 wire unconditioned twisted pair
or coaxial cable
Transmit Mode:
Full Duplex
Transmit Level:
-0 dBm
Control Signals:
In DCE mode, CTS (pin 5) follows
RTS (pin 4), DSR (pin 6) turns on when unit is powered
up, and DCD (pin 8) turns on after detecting the receive
signal from the line. In DTE mode, RTS (pin 4) follows
CTS (pin 5), and DTR (pin 20) turns on after detecting the
receive signal from the line.
Data Rate:
0-19.2Kbps
Surge Protection:
Compliant with IEC 801.5 level 2, 1kV (Model
1003S Only)
Range:
Up to 1 mile
Power:
None Required, derives required power
from RS-232 input signals
Size:
2.20" x 1.75" x 0.75"
(5.6 x 4.4 x 1.9 cm)
Temperature:
32° to 140° F
Humidity:
95% Non-condensing
APPENDIX B
PATTON MODEL 1003 CABLE RECOMMENDATIONS
The Patton Model 1003 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
19 AWG/.9mm
83nf/mi or 15.72 pf/ft.
.0163 Ohms/ft.
22 AWG/.6mm
83nf/mi or 15.72 pf/ft.
.0326 Ohms/ft.
24 AWG/.5mm
83nf/mi or 15.72 pf/ft.
.05165 Ohms/ft.
To gain optimum performance from the Model 1003, please keep
the following guidelines in mind:
•
Always
use
twisted pair
wire—this is not an option.
• Use twisted pair wire with a capacitance of 20pf/ft or less.
• Avoid twisted pair wire thinner than 26 AWG (i.e. avoid 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.
• Environmental factors too numerous to mention can affect the
maximum distances obtainable at a particular site. Use “maximum
distance” figures as a
general guideline only
.
9
10
24 AWG
(0.5 mm)
26 AWG
(0.4 mm)
19 AWG
( 0.9 mm)
19,200
2.2(3.5)
1.6(2.6)
1.2(1.9)
9,600
3.0(4.8)
2.1(3.4)
1.6(2.6)
4,800
4.3(6.4)
2.6(4.2)
1.7(2.7)
2,400
5.3(8.5)
2.8(4.5)
1.8(2.9)
1,200
5.6(9.0)
2.8(4.5)
1.8(2.9)
Data Rate
(bps)
Model 1003 Distance Table in Miles (km)
Wire Gauge
