GAI-Tronics LE300-IP Page/Party Line Extender - Manual (Page 64)

Pub. 42004-488C
M ODEL LE300-IP P AGE /P ARTY
®
L INE E XTENDER P AGE 61 of 68
e:\standard ioms - current release\42004 instr. manuals\42004-488c.doc
09/14
LVDS Cabling
Type ........................................................................................................ Straight-through Shielded CAT 5e
Cable characteristic impedance ........................................................................................... 100
 (nominal)
Maximum cable length ................................................................................................................... 10 meters
Line Balance Characteristics
Coupling ...................................................................................................................................... AC coupled
Adjustment range ...................................................................... Disabled, 15 to 115
 adjustable (nominal)
Page Line or Party Line Maximum Peak Working Voltage
L1 to L2 ....................................................................................................................... 30 volts dc nominal
L1 or L2 to ground ..................................................................................................... 120 volts dc nominal
Page Line Data
VLC frequency................................................................................................................. 50,087 Hz nominal
FSK high frequency (start bit) ......................................................................................... 32,914 Hz nominal
FSK low frequency (stop bit) ........................................................................................... 30,720 Hz nominal
FSK baud rate ............................................................................................................... 2400 bits per second
Page line data voltage transmit level ................................................ 707 mVrms
3 dB @ 33  impedance
Output type.................................... Current source with 3.3 k  impedance, transformer coupled (nominal)
VLC frequency capture range .............................. (within) inside 43,886  frequency  57,600 Hz nominal
VLC frequency release range ........................... (beyond) outside 40,070  frequency  65,829 Hz nominal
FSK high frequency capture range ....................... (within) inside 32,914  frequency  34,133 Hz nominal
FSK high frequency release range ................... (beyond) outside 31,779  frequency  36,864 Hz nominal
FSK low frequency capture range ........................ (within) inside 29,729  frequency  31,779 Hz nominal
FSK low frequency release range .................... (beyond) outside 27,106  frequency  31,779 Hz nominal
Page line data voltage detected range ....................................................................................... 100 mVrms
Page line data voltage not detected range .................................................................................. 4.0 mVrms
Page Line Monitor Audio from Either Page Line
Frequency response ........................................................................... 300 Hz to 7.0 kHz 0.5 dB @ −10 dB
Reference voltage level ............................................................. 775 mVrms @ 600  impedance (nominal)
Output type..................................... Voltage source with 600  impedance, transformer coupled (nominal)
Gain error ........................................................................................................ 3 dB @ 1,020 Hz sine wave
0 dB ref. 775 mVrms @ 600  impedance
Distortion + noise ................................................................................. THD < 1.0% @ 1,020 Hz sine wave
0 dB ref. 775 mVrms @ 600  impedance
Sampling rate ....................................................................................... 16,000 samples per second 32 ppm
Encoding ............................................................................................................................................... linear
Direction ...................................................................................................................................... output only
Gain adjustment range ...................................................................... −30 to +12 dB in 3 dB steps (nominal)
Maximum Peak Working Voltage L1 to L2 ................................................................ 15 volts dc nominal