APPENDIX A
MODEL 2017RC SPECIFICATIONS
Data Rates
:
0 to 115.2 kbps
Transmission Format
: Asynchronous, full duplex
Transmission Line
:
19 to 26 AWG unconditioned, 2 twisted
pairs
RS-232 Interface:
10 pin RJ-45 DCE
Control Signals:
RTS looped back to CTS, DTR looped back
to DSR and CD
Current loop
Interface:
RJ11 (6 position) or RJ45 (8 position)
Drive Voltage
:
12 VDC, nominal
Drive Current:
20mA, nominal
Maximum Loop
Voltage:
25 VDC
Maximum Loop
Current:
60mA
Isolation:
Optical (passive modes only)
Surge Protection:
27V, 600W Silicon Avalanche Diodes
LED Indicators:
Bi-color red/green indicators for TD and RD;
single green LED indicator for power
Power:
1.4W, max @ 10VAC, supplied by rack
Temperature:
0-40°C (32-104°F)
Humidity:
5 to-95%, noncondensing
Dimensions:
0.95”w x 3.1”h x 5.4”l
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APPENDIX B
PATTON MODEL 2017RC CABLE RECOMMENDATIONS
The following statements apply to the Model 2017RC when used as
a short range modem over private twisted pair:
All Patton Electronics Company Short Range Modems (SRMs) are
tested to the distances published in our Catalogs and Specification
Sheets on twisted-pair cable with the following characteristics:
Wire Gauge
Capacitance
Resistance
19 AWG
83nF/mi or 15.72 pF/ft.
.0163Ω/ft.
22 AWG
83nF/mi or 15.72 pF/ft.
.0326Ω/ft.
24 AWG
83nF/mi or 15.72 pF/ft.
.05165Ω/ft.
26 AWG
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 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 must be taken seriously.
Certain models are better suited for particular applications and
environments than others.
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