Table of Contents
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Chapter 1. Introduction
FXS+ Option Module Specifications
4
The FXS+ Dual Voice option module conforms to the
following specifications:
Voice Channels
Transmission Levels
Frequency Response
2-wire Impedance
2-wire ERL
2-wire SRL
THL ERL
THL SRL
Longitudinal Bal
RX Idle Channel Noise <15 dBrnc
TX Idle Channel Noise <20 dBrnc
Loop Current
Loop Range
Operating Temperature 0 - 45 C, 95% humidity,
Connector
Ring Generator
Tests
FXS+ Dual Voice Option Module
2 (4 with plug-on module
installed)
TX: +3 to -5 dB TLP, 1 dB
steps
RX: 0 to -8 dB TLP, 1 dB steps
300 - 3400 Hz ( 1.0 dB)
600
+ 2.15 F
>30 dB
>20 dB
>30 dB
>20 dB
>52 dB
25 mA (constant current)
0 - 1200
non-condensing
RJ-45
20 Hz 60 Vrms 2.5 RE
Power-on circuit test
Signal bits monitoring and
setting
1 kHz test tone generation
Setable 2-wire port output state
61200.080L1-1
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