APPENDIX B
PATTON IM2RC/F
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
following characteristics:
Wire Gauge
Capacitance
Resistance
19 AWG 83nF/mi or 15.72 pF/ft. .0163
Ω
/ft.
22 AWG 83nF/mi or 15.72 pF/ft. .0326
Ω
/ft.
24 AWG 83nF/mi or 15.72 pF/ft. .05165
Ω
/ft.
26 AWG 83nF/mi or 15.72 pF/ft. .08235
Ω
/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
characteristics (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
numerous 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.
16
APPENDIX A
PATTON IM2RC/F
SPECIFICATIONS
Applications:
64kbps 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, 2500RC, 1045RC, HDSL Series
Patton transmission devices products
Operating Modes:
Supports octet or clear channel mode; co-
directional timing, Rx recovered: 64/128
kbps±500/1000ppm.
Octet timing auto detection on receiver.
Line Encoding:
AMI with bi-polar violations for octet timing.
Timing Modes:
Modem or network timing
G.703 Input
Signal Level:
0 to -10 dB
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, tranformer coupled
PCB Dimensions:
2.04” x 3.24”
Approvals:
CE Mark
Compliance:
EMC directive: 89/336/ECC
Emissions: EN55022
Immunity: EN50082-1
Low Voltage (LVD) Directive: 73/23/ECC
Safety: EN60950
CTR 14, (Type Approval) - The
symbol indicates that the Model IM2RC/F is
in compliance with the applicable Telecom
Directive of the EU. If your IM2RC/F is
marked with this symbol, it is EU Telecom
Type Approved and may be connected to
the public network.
Power
Consumption:
<140mA @ 10 VAC RMS, including
integrated front card modem with the rack
card power supply under full load
Temp. Range:
0 - 60˚ C (32 - 140˚ F)
Altitude Range:
Up to 15,000 ft (4572 m)
Humidty Range:
5 - 95% non-condensing
15
