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APPENDIX A
SPECIFICATIONS
Transmission Format: Asynchronous
Data Rate: 0 to 19.2 Kbps
Surge Protection: 600W power dissipation at 1 mS
Control Signal: DCE Mode: CTS (Pin 8) turns ON immediately after
the terminal raises RTS (Pin 9); DSR (Pin 2) turn ON immediately
after the rack has power; CD (Pin 3) may be constantly “ON” or
“normal” (i.e. follows presence or absence of RXC signal).
Transmission Line: 4-wire, unconditioned twisted pair, shielded or
unshielded
Transmit Mode: Full duplex, 4-wire
Line Connection: RJ-11 or RJ-45 jack
Temperature Range: 1-50°C (34-122°F)
Altitude: 0-15,000 feet
Humidity: Up to 95% non-condensing
Dimensions: 0.95”w x 3.1”h x 5.4”l
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APPENDIX B
CABLE RECOMMENDATIONS
The Patton Model 1000RC 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 83nf/mi or 15.72 pf/ft. .0163 Ohms/ft.
22 AWG 83nf/mi or 15.72 pf/ft. .0326 Ohms/ft.
24 AWG 83nf/mi or 15.72 pf/ft. .05165 Ohms/ft.
To gain optimum performance from the Model 1000RC, 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.
• 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.
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