APPENDIX B
PATTON MODEL 1005 CABLE RECOMMENDATIONS
The Patton Model 1005 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 1005, 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.
APPENDIX A
PATTON MODEL 1005 SPECIFICATIONS
Transmission Format
: Asynchronous
Data Rate
: 0 to 19,200 bps (no strapping)
Control Signal
:
DCE Mode:
CTS (Pin 5) turns ON immediately after
the terminal raises RTS (Pin 4); DSR (Pin 6) turns on when is
powered-up (connected); DCD (Pin 8) turns ON after detecting the
receive signal from the line;
DTE Mode:
RTS (Pin 4) turns “ON”
immediately after the modem raises CTS (Pin 5); DTR (Pin 20)
turns "ON" after recognizing the receive signal from the line; Pins
11, 19 and 20 are hardwired together on the DB-25 side of the
DCE/DTE switch
Transmit Line
: 4-wire, unconditioned line
Transmit Mode
: Full duplex, 4-wire
Transmit Level
: 0 dBm
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
: No additional power required, uses ultra low power
from EIA data and control signals; additional power can be added
at pin 9 for +V DC when DB-25 is below the RS-232 standard
requirements
Surge Protection:
Compliant with IEC 801.5 level 2, 1kV (Model
1005S Only)
Size
: 2.66” x 2.10” x 0.73” (6.76 x 5.33 x 1.85 cm)
11 12
24 AWG
(0.5 mm)
26 AWG
(0.4 mm)
19 AWG
( 0.9 mm)
19,200 6.2(10.0) 3.7(6.0) 1.2(1.9)
9,600 7.5(12.1) 4.9(7.9) 2.5(4.0)
4,800 8.7(14.0) 5.6(9.0) 3.7(6.0)
2,400 11.8(19.0) 8.0(12.9) 4.9(7.9)
1,200 17.0(27.4) 11.8(19.0) 8.0(12.9)
Data Rate
(bps)
Model 1005 Distance Table in Miles (km)
Wire Gauge