21
22
APPENDIX B
PATTON ELECTRONICS MODEL 2085RC
CABLE RECOMMENDATIONS
The Patton Model 2085RC operates at frequencies of 115kHz 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.
26 AWG
83nf/mi or 15.72 pf/ft.
.08235 Ohms/ft.
Using or simulating cable with the above characteristics, the follow-
ing data rate/distance results were obtained by Patton during bench
tests:
To gain optimum performance from the Model 2085RC, 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 speci-
fications 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.
APPENDIX C
PATTON ELECTRONICS MODEL 2085RC
FACTORY REPLACEMENT PARTS
The Patton Model 2085RC rack system features interchangeable
rear half cards, power cords/fuses for international various operating
environments and other user-replaceable parts. Model numbers and
descriptions for these parts are listed below:
Patton Model #
Description
1000RPEM..........................120/240V Rear Power Entry Module
1000RPSM-2.......................120/240V Front Power Supply Module
1000RPEM-DC ...................DC Rear Power Entry Module
1000RPSM-48A ..................48V Front Power Supply Module
1000RPEM-V ......................120/240V CE Compliant Rear Power
Entry Module
1000RPEM-V ......................120/240V CE Compliant Rear Power
Supply Entry Module
0805US ...............................American Power Cord
0805EUR.............................European Power Cord CEE 7
0805UK ...............................United Kingdom Power Cord
0805AUS .............................Australia/New Zealand Power Cord
0805DEN.............................Denmark Power Cord
0805FR ...............................France/Belgium Power Cord
0805IN.................................India Power Cord
0805IS.................................Israel Power Cord
0805JAP..............................Japan Power Cord
0805SW ..............................Switzerland Power Cord
0516FPB1 ...........................Single Width Blank Front Panel
0516FPB4 ...........................4-Wide Blank Front Panel
0516RPB1...........................Single Width Blank Rear Panel
0516RPB4...........................4-Wide Blank Rear Panel
MODEL 2085RC Distance Table- Miles (Km)
Wire Gauge
19 AWG
22 AWG 24 AWG
26 AWG
(.9mm)
(.6mm)
(.5mm)
(.4mm)
115.2
3.5
(5.6)
2.6
(4.2)
1.4
(2.2)
0.9
(1.4)
38.4
5.0
( 8.0)
2.9
(4.7)
2.2
(3.5)
1.5
(2.4)
9.6
7.1
(11.4)
4.6
(7.4)
3.5
(5.6)
2.8
(4.5)
1.2
9.0
(14.5)
6.5
(10.5)
5.0
(8.0)
3.9
(6.3)
Data Rate
(kbps)
