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:
Transmit Mode: Full duplex,
Line Connection:
Temperature Range: 1-50°C (34-122°F)
Altitude:
Humidity: Up to 95%
Dimensions: 0.95”w x 3.1”h x 5.4”l
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
•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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