Specifications for the Four-Wire E&M Card - Encore Networks
Specifications for the Four-Wire E&M Card - Encore Networks
Specifications for the Four-Wire E&M Card - Encore Networks
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
! encor en • etworks TMVersion A, March 2010© 2010 <strong>Encore</strong> <strong>Networks</strong>, Inc.All rights reserved.<strong>Specifications</strong> <strong>for</strong> <strong>the</strong> <strong>Four</strong>-<strong>Wire</strong> E&M<strong>Card</strong>This document lists specifications <strong>for</strong> <strong>the</strong> four-wire E&M card. (The four-wire E&M card isavailable <strong>for</strong> <strong>the</strong> BANDIT III.)B.1 <strong>Four</strong>-<strong>Wire</strong> E&M VoiceTable B-1. <strong>Four</strong>-<strong>Wire</strong> E&M Connector Pinout (RJ48)Pin Signal Description1 SB Signal Battery2 M-Lead3 RX- Audio In -4 TX- Audio Out -5 TX+ Audio Out +6 RX+ Audio In +7 E-Lead8 SG Signal GroundTable B-2. Audio ParametersParameterMaximum Output LevelMaximum Input LevelNominal Input ImpedanceNominal Output ImpedanceGain Adjust Transmit/ReceiveGain Adjust StepsIdle Channel Noise, C-Message WeightedIdle Channel Noise, Psophometric WeightedFrequency Response, 300 Hz to 3,000 HzIsolationValue+1.5 dBm+4 dBm600 ohm600 ohm±7 dB±0.5 dB< 18 dBrnc0< -74 dBm0p±0.2 dB4,000 VFor in<strong>for</strong>mation on trademarks, safety, limitationsof liability, and similar topics, see Notices.Home Module: PCM Voice NetworkDocument B
Page 2PCM Voice Network, Document BTable B-3. Signaling ParametersParameterE&M Signaling TypeConfigurable Signaling TypeInput Signaling Detector ResistanceInput Signaling Detection VoltageMaximum Output Signaling On ResistanceMaximum Output Signaling Off ResistanceMaximum Output Signaling CurrentOutput Signaling VoltageE&M Circuit IsolationValueI, II, III, IV, or VTrunk Circuit or Signaling Unit4.02 k-ohm-24 V to -60 V20 ohm1 G-ohm35 mA-20 V to -60 V4,000 VB.2 E&M Signaling TypesThe following diagrams illustrate <strong>the</strong> four-wire E&M signaling circuits used in <strong>the</strong>BANDIT III.Note: Trunk and signaling facilities must share common ground in Type III and Type V.(Use Auxiliary Connector Pin 2.)Figure B-1. <strong>Four</strong>-<strong>Wire</strong> E&M Type I Signaling
<strong>Specifications</strong> <strong>for</strong> <strong>the</strong> <strong>Four</strong>-<strong>Wire</strong> E&M <strong>Card</strong> Page 3Figure B-2. <strong>Four</strong>-<strong>Wire</strong> E&M Type II SignalingFigure B-3. <strong>Four</strong>-<strong>Wire</strong> E&M Type III SignalingNote: Trunk and signaling facilities <strong>for</strong> Type III must share commonground. (Use Auxiliary Connector Pin 2.)
Page 4PCM Voice Network, Document BFigure B-4. <strong>Four</strong>-<strong>Wire</strong> E&M Type IV SignalingFigure B-5. <strong>Four</strong>-<strong>Wire</strong> E&M Type V SignalingNote: Trunk and signaling facilities <strong>for</strong> Type V must share commonground. (Use Auxiliary Connector Pin 2.)
<strong>Specifications</strong> <strong>for</strong> <strong>the</strong> <strong>Four</strong>-<strong>Wire</strong> E&M <strong>Card</strong> Page 5B.3 Auxiliary Input and Output Signals <strong>for</strong> <strong>Four</strong>-<strong>Wire</strong>E&MThe auxiliary input–output signals are multipurpose—<strong>for</strong> example, an auxiliary signal canbe used <strong>for</strong> external alarm detection and generation. Battery voltage is selectable 5 V (usedby auxiliary signals) or -48 V (used by E&M signaling). Figure B-6 and Figure B-7 illustrateequivalent auxiliary in and out circuits.Table B-4. Auxiliary Connector Pinout (8-Pin Phoenix)PinDescription1 Battery Voltage2 Battery and E&M Signaling Return3 Aux In 14 Aux In 25 Aux In 36 Aux In 47 Aux Out 18 Aux Out 2Table B-5. Auxiliary Input–Output SignalsSignal Minimum Nominal MaximumBattery Voltage (Option 1), default -44 V -48 V -52 VBattery Voltage (Option 2) +4.5 V +5 V +5.5 VBattery Power (Option 1), default1.5 WBattery Power (Option 2)1 WAuxiliary In, Resistance2 k-ohmAuxiliary In, On Voltage -24 V 2.5 VAuxiliary In, Off Voltage open 3 V +24 VAuxiliary Out, Off Voltage+5 VAuxiliary Out, Off Resistance to +5 V4.02 k-ohmAuxiliary Out, On Voltage0 VAuxiliary Out, On Resistance to GND20 ohmAuxiliary Out, On Sink Current50 mA
Page 6PCM Voice Network, Document BFigure B-6. Auxiliary In Equivalent CircuitFigure B-7. Auxiliary Out Equivalent Circuit
Change language