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APPENDIX A
PATTON ELECTRONICS MODEL IM2RC/F-128K
SPECIFICATIONS
Applications:
128kbps G.703 PCM network extension
G.703 Interfaces:
Symmetrically balanced 4-wire, 120 Ohm
RJ-45 jack termination
Line Interface:
Entire module plugs into 1092RC,
1092ARC, 1094ARC, and 1095RC HDSL
Series Patton transmission devices products
Operating Modes:
Supports clear channel mode; co-direction-
al timing, Rx recovered: 128 kbps±500ppm.
Line Encoding:
AMI with bi-polar violations for octet timing.
Timing Modes:
Modem or network timing
G.703 Input
Signal Sensitivity:
0 to 9 dB loss @ 250 Khz
Transmit Level:
2.0V differential into 100 Ohms, nominal
Load Impedance:
120 Ohms
Jitter Performance:
CTR 14, G.823
Surge Protection:
Complies with IEC 801.5 level 1, 500V
Isolation:
1500V RMS isolation, transformer coupled
PCB Dimensions:
2.04" x 3.24"
Compliance:
CE Mark
Power Consumption:
<180mA @ 10 VAC RMS, including integrat-
ed front card modem with the rack card
power supply under full load
Temp. Range:
0 - 60º C (32 - 140º F)
Altitude Range:
Up to 15,000 ft (4572 m)
Humidity Range:
5 - 95% non-condensing
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APPENDIX B
PATTON ELECTRONICS MODEL IM2RC/F-128K
CABLE RECOMMENDATIONS
All Patton Electronics Company Baseband Modems, CSU/DSUs
and Short Range Modem are tested to the distances published in our
Catalogs and Specification Sheets on twisted-pair cable with the follow-
ing characteristics:
Wire Gauge
Capacitance
19 AWG
83nF/mi or 15.72 pF/ft.
22 AWG
83nF/mi or 15.72 pF/ft.
24 AWG
83nF/mi or 15.72 pF/ft.
26 AWG
83nF/mi or 15.72 pF/ft.
We fully expect that the Baseband Modems, CSU/DSUs and 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 charac-
teristics (lower capacitance or lower resistance).
Wire with capacitance of 20pF/ft. or less is suitable for all Baseband
Modems, CSU/DSUs and 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 numer-
ous to discuss in this format may affect proper operation.
Selection of the proper Baseband Modem, CSU/DSU or 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.
Loop Resistance
.0163 ohms/ft.
.0326 ohms/ft.
.05165 ohms/ft.
.08235 ohms/ft.
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