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)