- 4 -
lim-ac (01.11.2006)
Kompetent für Elektroniksysteme
- 5 -
lim-ac (01.11.2006)
Kompetent für Elektroniksysteme
Adjustment
Optional notch filter, plugged in on multiple
operator devices in parallel operation.
ST3/GND
RS232/TTL
P1
AF-TX
P2
AF-RX
ST5/Pin 1
Jumper
P1 (AF-TX)
P1 sets the level of the pilot tone. The required AF level has to be set within the operator device.
The factory default of P1 is set to the max. permitted level according to TBR 15.
Pilot tone without AF
-->
- 10 dBm on line
AF Input 500 mV
-->
- 8 dBm on line
AF plus pilot tone
-->
- 6 dBm on line
P2 (AF-RX)
Feed line / 2 wire connection with required level and set AF-Output to 500 mV.
Remark:
In public communication networks it is mandatory to terminate the line with the reference terminating
impedance of Zr while sending or receiving. Because of this the FT624 has to be used to connect
multiple LIM-AC in parallel. This causes a higher insertion loss.
Please consider the programming capabilities of pilot tone and relais.
TXD
RXD
