APPENDIX B
PATTON MODEL 1050 CABLE RECOMMENDATIONS
All Patton Electronics Company Short Range Modems are tested to the distances published in our Catalogs and Specification Sheets on
Wire Gauge | Capacitance | Resistance |
19 AWG(.9mm) | 83nF/mi or 15.72 pF/ft. | .0163Ω /ft. |
22 AWG(.6mm) | 83nF/mi or 15.72 pF/ft. | .0326Ω /ft. |
24 AWG(.5mm) | 83nF/mi or 15.72 pF/ft. | .05165Ω /ft. |
26 AWG(.4mm) | 83nF/mi or 15.72 pF/ft. | .08235Ω /ft. |
We fully expect that the Short Range Modems will operate on lines with specifications different from those tested, but to reduce the potential difficulties in the field, one should ensure that the cable being used has similar or better characteristics (lower capacitance or lower resistance).
Wire with capacitance of 20pF/ft. or less is suitable for all our Short Range Modems however, distances may vary from those published in our catalog. Resistance will also affect distance but not functionality.
Wire should be 26 AWG (.4mm) (or larger (smaller AWG#).
Patton products are designed to withstand normal environmental noise and conditions however, other environmental factors too numerous to discuss in this format may affect proper operation of the SRM’s.
Selection of the proper SRM for an application is critical to maintaining Customer Satisfaction and should be taken seriously. Certain models are better suited for particular applications and environments than others.
APPENDIX C
PATTON MODEL 1050 INTERFACE PIN ASSIGNMENT
RS-232 FEMALE, D-SUB 25 CONNECTOR
(DCE ORIENTATION)
DIRECTION | STANDARD | DIRECTION |
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| 1- (FG) Frame Ground |
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| 2- (TD) Transmit Data | To 1050 |
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| 3- (RD) Receive Data | From 1050 |
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| 4- (RTS) Request to Send | To 1050 |
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| 5- (CTS) Clear to Send | From 1050 |
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| 6- (DSR) Data Set Ready | From 1050 |
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| 7- (SG) Signal Ground |
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| 8- (DCD) Data Carrier Detect | From 1050 |
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DIRECTION | STANDARD | DIRECTION | |||||||||
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| From 1050 | Data Term. Ready (DTR) - 20 |
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13 | 14 |
