手機選單
search
QFXO Voice Card for AM3440-A/B/C
  • QFXO Voice Card for AM3440-A/B/C

Quad FXO Voice Card for AM3440-A/B/C

The QFXO plug-in cards are a series of 2 different plug-in cards designed for the Loop-AM3440A, B and C.

  • Features
  • Applications
  • Downloads

The QFXO plug-in cards are a series of 2 different plug-in cards designed for the Loop-AM3440-B and Loop-AM3440-C. It allows voice frequency interfaces to be multiplexed as a 64 kbps DS0 signal onto a digital network. The QFXO provides four voice connections to central office or PBX and provides user selectable A-law or mu-law coding. Most popular signaling conventions are supported, including PLAR (private line automatic ring down).

  • 4 central office or PBX line connections for QFXO
  • Loop start or ground start (manufacturing option)
  • 12 khz or 16 khz metering pulse (manufacturing option)
  • ANSI, ETSI (manufacturing option)
  • A, B, C, D Bit (manufacturing option)
  • User programmable A-law or Mu-law coding
  • User programmable loss adjustment
  • User programmable balance 600/900 ohm impedance
  • Most signaling conventions supported
  • Battery reverse supported