R1253C1
Miscellaneous Communication Equipment
AMPLIFIER-LIMITER
R1253C1
5895 - Miscellaneous Communication Equipment
Telmar Network Technology Inc.
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Technical Characteristics
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Iii End Item Identification
various shore atc
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General Characteristics Item Description
item is a 2-wire ear and mouth channel unit.vf response at 200 hz is 0 to 5 db,at 300 to 3000 hz is -0.5 to + 1 db,3300 hz is 1.5 db max.,3400 hz is 0 to 3 db. drop level is 0 to -12.7 dbm xmit.,+5.7 to -7.0 dbm rec.,adj. in 0.1 db steps.impedance is 600
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~1
or 900 ohms + 2.16 microfarads. interchannel crosstalk 65 db min. channel sampling sequence bell system d3,d2,and d1d compatable.line code is am1/b8zs.voltage requierment is -48 vdc nominal.temp. range is +10 to +40 deg.c.
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