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APPENDIX A
PATTON MODEL 2070 SPECIFICATIONS
Approvals: CE Mark
Compliance: FCC Class A, EN 55022, (EMC Emissions)
EN 50082-1, (EMC Susceptibility)
EN 60950, (LVD Safety)
CTR 14, (Type Approval) - The
symbol indicates that the Model 2070 is in
compliance with the applicable Telecom
Directive of the EU. If your 2070 is marked
with this symbol, it is EU Telecom Type
Approved and may be connected to the
public network.
Applications: 64K G.703 co-directional PCM network or
CSU/DTE conversion to CCITT/ITU V.24,
CCITT/ITU V.35, or CCITT/ITU X.21
G.703 Interface: Symmetrically balanced pairs, 4 wire, 120
Ohm terminated to female RJ-45
Terminal Interface: Model 2070/Ax CCITT/ITU V.24 Sync.,
DCE
Model 2070/Cx CCITT/ITU V.35 Sync.,
DCE
Model 2070/Dx CCITT/ITU X.21 Sync.,
DCE
Operating Speed: Co-directional timing, Rx recovered:
64Kbits +
500ppm
Clocking: Internal, External or Network Timing
(External Timing on 2070/Ax and 2070/Cx
Only)
G.703 Input Sig. Level: 2.0V differential, into 100 Ohms, nominal
Max. Cable Loss: 0 to -10dB
Line Encoding: AMI
Jitter Performance: CTR 14, G.823
Surge Protection: Complies with IEC 801-5 Level 1, 500V
Isolation: 1500 VRMS isolation, transformer coupled
Indicators: LED’s monitor TM and SYNC
Power Supply Options: External wall-mount transformer:
100-240 VAC Input to +5VDC/2A output;
100-132 VAC input to +5VDC/300mA output;
Pin 9 on V.24 interface;
Pin KK on V.35 interface;
Pin 15 on X.21 interface:
+5VDC (±5%), 300mA (min).
Temperature Range: 0-60°C (32-140°F)
Altitude: 0-15,000 feet (0-4572m)
Humidity: 5 to 95% noncondensing
Dimensions: Model 2070/Ax:
2.9” x 1.4” x 0.7”. (7.4 x 3.6
x 1.8 cm)
Model 2070/Cx: 3.9” x 1.4” x .7” (10.0 x 3.6
x 1.8 cm)
Model 2070/Dx: 2.6” x 1.4” x 0.7” (6.7 x 3.6
x 1.8 cm)
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APPENDIX B
PATTON MODEL 2070 CABLE RECOMMENDATIONS
The following statements apply when using the Model 2070s as a
short range modems 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:
W
ire 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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