Chapter1. Introduction
61175408L1 Octal FXS Voice Module User Manual 1-3
QUAD FXS VOICEMODULE SPECIFICATIONS
ELECTRICALSPECIFICATIONS
Power 6Watts (off hook)
LoopCurrent 23mA nomin al
20mA minimum
LoopResistance 1200ohms nomin al/1650ohms maxi mum*
(900ohms/1350 ohms - line, 300 ohms - phone)
LoopLength 16 kfeet
TerminatingImpedance 900ohm +2.16µF,
600 ohm+ 2.16µF,
900 ohm,an d 600 ohm
Return Loss 900 ohm+ 2.16µF,
ERL> 28 dB,
SRL> 20 dB
Trans Hybrid Loss 900 ohm+ 2.16µF,
ERL> 28 dB,
SRL> 20 dB
LongitudinalBalance 200,50 0, and 1000 Hz: > 58 dB min., > 63 dB avg.
3000H z: > 53 dB min., > 58 dB avg.
FrequencyResponse 300to 3400 Hz: -0.5 and 1.0 dB
IdleChannel Noise <20dBrnC
Signal-to-DistortionRatio 0to -30 dBm0: > 33 dB
-30to-40dBm0:>27dB
-40to-45dBm0:>22dB
PHYSICALSPECIFICATIONS
Dimensions 31/4"Hx10"D
Weight 1lb.
ENVIRONMENTAL SPECIFICATIONS
OperatingTemperature -40 to 64 °C
StorageTemperature -40 to 70 °C
RelativeHumidity Upto 95% n oncondensing
*Measuredwith -48 VDC input, 20 mA loop current