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APPENDIX B
PATTON MODEL 1000 CABLE RECOMMENDATIONS
The Patton Model 1000 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 1000, 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
.
12
APPENDIX A
PATTON MODEL 1000 SPECIFICATIONS
Transmission Format: Asynchronous
Data Rate: 0 to 19.2 Kbps
Surge Protection: Compliant with IEC 801.5 level 2,
1kV (Model 1000S Only)
Control Signal: DCE Mode: CTS (Pin 5) turns
ON immediately after the
terminal raises RTS (Pin 4);
DSR (Pin 6) and DCD (Pin 8)
turn ON immediately after the
terminal raises DTE (Pin 20)
Transmit Line: 4 wire, unconditioned line (2
twisted pair)
Transmit Mode: Full duplex, 4-wire
Transmit Level: 0 dBm
DTE/DCE Connection: Either a male or female DB-25
Line Connection: RJ-11 or RJ-45 jack or 5 screw
terminal posts (4 wires and 1
ground) and a strain relief insert
Power Supply: None required, uses ultra low
power from EIA data and control
signals
Size: 2.2" x 1.75" x 0.75"
(5.6 x 4.4 x 1.9 cm)
11
24 AWG
(0.5 mm)
26 AWG
(0.4 mm)
19 AWG
( 0.9 mm)
19,200 6.2(9.9) 3.7(5.9) 1.2(1.9)
9,600 7.5(12.0) 4.9(7.8) 2.5(4.0)
4,800 8.7(13.9) 5.6(9.0) 3.7(5.9)
2,400 11.8(18.9) 8.0(12.8) 4.9(7.8)
1,200 17.0(27.2) 11.8(18.9) 8.0(12.8)
Data Rate
(bps)
Model 1000 Distance Table in Miles (km)
Wire Gauge