GAI-Tronics LE300-IP Page/Party Line Extender - Manual (Page 65)

Pub. 42004-488C
M ODEL LE300-IP P AGE /P ARTY
®
L INE E XTENDER P AGE 62 of 68
e:\standard ioms - current release\42004 instr. manuals\42004-488c.doc
09/14
Page Line Audio between Two LE300-IPs
Frequency response ........................................................................... 300 Hz to 7.0 kHz 0.5 dB @ −10 dB
Reference voltage level ................................................................... 1.5 Vrms @ 33  impedance (nominal)
Output type.................................... Current source with 3.3 k  impedance, transformer coupled (nominal)
Gain error ........................................................................................................ 3 dB @ 1,020 Hz sine wave
0 dB ref. 1.5 Vrms @ 33  impedance both ends
Distortion + noise .................................................................................. THD <1.0% @ 1,020 Hz sine wave
0 dB ref. 1.5 Vrms @ 33  impedance both ends
Sampling rate ...................................................................................... 16,000 samples per second  32 ppm
Encoding .............................................................................................................................................. Linear
Direction ..................................................................................................................................... Half duplex
N OTE : Refer to text for considerations when connecting LE300-IPs in series.
Party Line #1 Audio between Two LE300-IPs
Frequency response ........................................................................... 300 Hz to 7.0 kHz 0.5 dB @ −10 dB
Reference voltage level ................................................................... 1.5 Vrms @ 33  impedance (nominal)
Output type.................................... Current source with 3.3 k  impedance, transformer coupled (nominal)
Gain error ........................................................................................................ 3 dB @ 1,020 Hz sine wave
0 dB ref. 1.5 Vrms @ 33  impedance both ends
Distortion + noise .................................................................................. THD <1.0% @ 1,020 Hz sine wave
0 dB ref. 1.5 Vrms @ 33  impedance both ends
Sampling rate ....................................................................................... 16,000 samples per second 32 ppm
Encoding .............................................................................................................................................. Linear
Direction ...................................................................................................................................... Full duplex
N OTE : Refer to text for considerations when connecting LE300-IPs in series.
Party Line #2 to #5 Audio between Two LE300-IPs
Frequency response ........................................................................... 300 Hz to 3.5 kHz 0.5 dB @ −10 dB
Reference voltage level ................................................................... 1.5 Vrms @ 33  impedance (nominal)
Output type.................................... Current source with 3.3 k  impedance, transformer coupled (nominal)
Gain error ........................................................................................................ 3 dB @ 1,020 Hz sine wave
0 dB ref. 1.5 Vrms @ 33  impedance both ends
Distortion + noise .................................................................................. THD <1.0% @ 1,020 Hz sine wave
0 dB ref. 1.5 Vrms @ 33  impedance both ends
Sampling rate ......................................................................................... 8,000 samples per second 32 ppm
Encoding .............................................................................................................................................. Linear
Direction ...................................................................................................................................... Full duplex
N OTE : Refer to text for considerations when connecting LE300-IPs in series.
Page Line Audio Detection
Detection peak voltage threshold selections ...................................................... −12 or −24 dB ref. nominal
Detection hold time selections ................................................... 40, 160, 640, 1280 milliseconds (nominal)
Hold time on audio detected relay output ....................................................................... 1 second (nominal)