APPENDIX A
PATTON MODEL 1040 SPECIFICATIONS
Transmission Format:
Sync. or async., full or half duplex
Transmission Line:
Unconditioned twisted pair 19 - 26
AWG
Clocking:
Internal, external or receive
loopback
Interfaces:
EIA RS-232, CCITT V.24
Data Rates:
1.2, 1.8, 2.4, 3.6, 4.8, 7.2, 9.6,
14.4, 19.2, 28.8, 38.4 Kbps (switch
selectable)
Isolation:
Minimum 1500 V RMS via
isolation transformers
Control Signals:
Constantly “on” or controlled by
RTS
RTS/CTS Delay:
No delay, 7mS, 53mS
Connectors:
DB-25 male or female on RS-232
side; RJ-11, RJ-45 or terminal
block with strain relief on line side
Power Supply:
None required; uses power from
EIA data and control signals
Surge Protection:
Compliant with IEC 801.5 level 2,
1kV
Temperature Range:
0-60°C (32-140°F)
Altitude:
0-15,000 feet
Humidity:
5 to 95% noncondensing
Dimensions:
3.0” x 2.1” x .81”
(7.6 x 5.3 x 2.1 cm)
Weight:
2 oz. (56.7g)
APPENDIX B
PATTON MODEL 1040 CABLE RECOMMENDATIONS
The Patton Model 1040 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/.9mm 83nf/mi or 15.72 pf/ft. .0163 Ohms/ft.
22 AWG/.6mm 83nf/mi or 15.72 pf/ft. .0326 Ohms/ft.
24 AWG/.5mm 83nf/mi or 15.72 pf/ft. .05165 Ohms/ft.
To gain optimum performance from the Model 1040, 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.
• Environmental factors too numerous to mention can affect the
maximum distances obtainable at a particular site. Use “maximum
distance” figures as a
general guideline only
.
20
19
24 AWG
(0.5 mm)
26 AWG
(0.4 mm)
19 AWG
( 0.9 mm)
38,400 6.0(9.7) 4.5(7.2) 2.5(4.0)
19,200 9.0(14.5) 6.5(10.5) 4.0(6.4)
9,600 10.0(16.1) 7.0(11.3) 5.0(8.0)
4,800 11.0(17.7) 8.0(12.9) 6.0(9.7)
1,200 12.0(19.3) 10.0(16.1) 6.0(9.7)
Data Rate
(bps)
Model 1040 Distance Table in Miles (km)
Wire Gauge