Powerline IV Computer Telephony Card



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Powerline IV Computer Telephony Card

Powerline IV Hardware
Technical Specifications

Powerline IV System Requirements

  • IBM compatible 386, 486, Pentium, ISA 16 bit bus slots
    (one per card)
  • 16 kb of memory per card at base address (C0000-EFFFFh) (addresses switch selectable)
  • One eight bit input-output (I/O) port (switch selectable)
  • One interrupt line (selectable from IRQs 5,7,9,10,11,12)
  • One megabyte of PC memory
  • 10 megabytes of free fixed-disk space
  • MS-DOS or Windows 9x operating systems (MS-DOS 3.1 through Windows 98)

Capacity

  • Four telephone ports per card
  • System expandable to 32 ports using 8 PLIV cards

Telephone Interface

  • 600/900 ohm voice termination impedance
  • Analog Loop Start with loop current, CPC, and reversal detection
  • Ring Detect 18-66 Hz with frequency and cadence discrimination
  • Solid state relays and DTFM detectors
  • Digital A/D conversion with time division multiplexing
  • Intra-Line cross point switching on four ports (standard) - up to 32 ports (optional)
  • 3-wire telephone ports (optional)
  • operator/local phone switch (optional)
  • ground start/earth flash (optional)

Power Requirements

  • +5 volt, 800 mA
  • +12 volt, 45 mA
  • -12 volt, 25 mA

Dialing

  • DTMF tones (0-9, *, #, A-D)
  • Rotary dial (pulse-dialing)
  • Flash-hook (adjustable)

Speech

  • 64 kilobits per second digitized speech data
  • Sampling Rate - 8.0 kHz
  • Industry standard mu-law companding
  • Automatic Gain Control (analog and digital)
  • Record and/or Playback volume control boost

Interrupts

  • One interrupt line required
  • Selectable from 5,7,9,10,11,12

Connectors

  • 2 RJ-14C modular telephone jacks (4 lines, 2 per jack)
  • 3.5 mm jack (microphone or audio input)
  • 3.5 mm jack (speaker or audio output)
  • 3.5 mm jack (auxiliary audio input
  • MVIP bus connector - 40 pin IDC header (optional)
  • Record-Playback Speech Audio Card (optional)

Touch-tone (DTMF) and Dial Pulse Detection

  • DTMF tones (0-9,*,#,A-D)
  • Pulse or rotary dial digits (0-9)
  • DTMF signal detection duration of 40 msec (adjustable)
  • DTMF sensitivity to -45 dBm
  • Voice talk-off rejection to -20dB

Call Progress Signal Detection

  • Standard detection: DIAL, TONE, BUSY, REORDER
  • Detection of six additional user defined tones
  • Detects special information tones (SIT)
  • Sensitive voice detection with tone and noise immunity
  • Frequency and cadence signal analysis>
  • PBX and hybrid key system compatibility

Onboard Microrocessor-Memory System

  • AMD 80C188EM 16 bit 33MHz
  • 64 kilobytes of onboard RAM
  • Mitel MT8981 (capable of switching 128 channels)
  • 8 kilobyte speech buffer per line
  • 32 kilobyte nonvolatile memory (optional)
  • Multitasking firmware - runs up to .5 sec w/o PC services<
  • All boards share the same 16 kilobyte PC memory.

Multi-Vendor Interface Protocol MVIP (Option)

  • Line cross-switching on up to eight PLIV cards
  • 3 external digital PCM time division multiplexed buses
  • Inter-card connection to T1, ISDN, add-on MVIP cards, etc.
  • 64 kilobytes of onboard RAM

FCC Specifications

  • Fully FCC and EC approved
  • Part 15, Class B #GB2USA-21715-MM-E
  • Part 68 #GB2TTI4PLAY2690C
  • 0.2A ringer equivalence
  • CE Mark/European EN55022 Class B
Mechanical Specifications
  • Overall length - 35.24 cm (13 7/8 inches - Full Size AT)
  • Card length - 33.65 cm (13 1/4 inches)
  • Card Width - 3/4 inch
  • Card Height - 12.06 cm (4 3/4 inches)
  • PCB Material - FR-4 epoxy fiberglass (1.57mm, 0.062 in.)
  • Part 15, Class B #GB2USA-21715-MM-E

Reliability and Security

  • PCB Material - FR-4 epoxy fiberglass (1.57mm, 0.062 in.)
  • Part 15, Class B #GB2USA-21715-MM-E
  • Onboard security device for software protection
  • Mean Time Before Failure (MTBF) - 8 years
  • Operating Temperature - 0 - 65 deg. C (32-50 deg. F)

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