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TIA568 Wiring Standards

How to decide which wiring pattern to use:

1. Does the job specification call out a wiring pattern?
2. Does the customer/end user have a preference for T568A or T568B?
3. Have patch panels already been purchased for the job? If so, they will probably be either T568A or T568B. The jacks should be wired to the same pattern as the panels.
4. Are you adding on to an existing wiring plant? If so, your new wiring should match the existing wiring.

If none of the factors above apply, either T568A or T568B may be used. It is important to ensure that the workstation connectors and the patch panels are wired to the same pattern. T568B is commonly used in commercial installations, while T568A is prevalent in residential installations.

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For a more complete selection of products (no online ordering available at that site), visit the original Lashen Electronics website located at http://www.lashen.com.
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ProMatrix Digitally Matrixed, 3-Channel Amplifiers


ProMatrix Digitally Matrixed, 3-Channel Amplifiers

Bogen PM3180 ProMatrix Digitally Matrixed 3-Channel Auto-Switching Amplifier

PM3180 Data Sheet

Multi-zone, multi-priority installations simplified!

The new ProMatrix Digitally Matrixed Amplifier is the first of its kind to incorporate three independent amplifier channels with a unique digital interface, providing the ideal solution for restaurant, lounge/bar hotel, factory or similar facilities where multiple program and paging inputs need to be distributed to separate areas and automatically switched.

The PM3180 can accommodate up to 4 aux inputs and 2 mic inputs. Each input can be individually assigned to each amplifier channel. Each input on a particular channel can also be assigned a priority level. The amp channel will then automatically switch inputs based on input activity and priority level. Microphones can be assigned to priority level 1 or 2 and aux sources to levels 3, 4, 5, or 6. One of the mic inputs can be programmed for telephone paging applications.

The three amplifier channels are rated at 20, 60 and 100 watts. All channels have separate 4 and 8-ohm outputs as well as 25 and 70 volt taps. Preamp out/power amp in links are also included for each amp channel to facilitate the insertion of signal processing equipment. Adjustable input trim controls let you adjust differing audio source input levels.

  • 3 Independent amplifier channels rated 20, 60 & 100 watts.
  • 2 Lo-Z balanced Mic inputs and 4 Aux inputs.
  • Provision for telephone paging.
  • Flexible priority assignments for each input on each amplifier channel.
  • Automatic switching of inputs based on input activity.
  • Password protected programming mode.
  • Wireless remote control.

The PM3180 includes a variety of useful features, including phantom power, automatic level control, choice of microphone precedence activation, variable mute, and automatic fade-in or audio source after a mic page or when switching to a lower priority. The amplifier's user mode lets personnel adjust the volume, bass and treble levels and manually select input sources. A program mode lets the installer program the ability to preset the power-up volume level of each input, preset treble and bass responses, and lock-out or inhibit volume, bass and treble controls.

All control functions are accomplished from the front control panel, which is itself removable for installation in a remote location away from the chassis. An infrared wireless remote control is also included and permits full control of all functions. Rack mount with kit RPK79.

Technical Specifications

Rated Power Output: 100 watts (amp 1), 60 watts (amp 2), 20 watts (amp 3)
Frequency Response (Aux Inputs): Transformer Outputs: 70Hz to 20KHz ±2dB (amp 1 & 2),
100Hz to 15KHz ±2dB (amp 3)
4-W Direct - 20Hz to 20KHz ±2dB (amp 1 & 2)
20Hz to 15KHz ±2dB (amp 3)
Distortion: Less than 0.5% (Less than 1% on amp 3)
Signal To Noise Ratio: -70dBr (Tel and Aux), -55dBr (Mic)
Input Sensitivities: Mic Inputs: 750mVrms (no ALC)
Aux Input: 100mVrms to 2.5Vrms (trimmer adjustable)
Tel Input: 170mVrms
Input Impedance: Mic Inputs: 200 W balanced
Tel Input: 600 W transformer balanced
Aux Input: 50K W unbalanced
Output Impedance: Separate terminal strips for each channel provide 4 W, 8 W, 25V and 70V taps
Tone Controls: Bass: ±10dB @ 50Hz; Treble: ±10dB @15KHz
Output Regulation: <2dB from no load to full load (all amps)
Phantom Power Supply: 13VDC, switchable, all mic inputs
Overload Protection: Electronic, automatic reset; Thermal Power Consumption: 430 watts
Dimensions: 17"W x 5-½"H x 14"D
Shipping Weight: 40 lbs.

Price: $975.08 


Quantity:  

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