Precision Audio and AV Interface Products

Radio Design Labs

DB-TPRX3A Three Input Format-A Source Selector

  • Remote Selection from 3 Sources that Correspond to 3 Format-A Pairs
  • Single-Button Selection for Each Source
  • LED Indication
  • Line-Level Balanced Output on Detachable Terminal Block
  • Display is Bright During Adjustment
  • Display Dims After Adjustment
  • Remote Powering through Twisted Pair Cable
  • Fused Local Power Feeds all Connected Modules
  • Local Power Input on Terminal Block
  • Studio-Quality Precision Active Balanced Circuitry
  • All-Metal Construction
  • Available in Stainless Steel, Black and White
  • Overview
  • Specifications
  • Related Products
  • Accessories
  • Downloads
  • How to Buy
  • Product Series
  • Dimensions

The D SERIES-TPRX3A is a three-pair audio receiving and switching module compatible with RDL Format-A twisted pair products. Three audio sources are available, corresponding to the three signal pairs A, B and C. The front panel of the -TPRX3A features three pushbuttons, each corresponding to one of three inputs. When a button is pushed, the corresponding audio input is fed to the output and any previously selected source is shut off. Only one source may be selected at a time. If the button for a selected source is pushed again, all inputs are turned off. An LED adjacent to each button shows which source is selected.

When a -TPRX3A is not being used, its display switches to a dim intensity to avoid being a visual distraction. The display returns to a bright intensity when a button is pushed. In the event of power loss, internal non-volatile memory stores the last source selected. When power is restored, the -TPRX3A will return to the source that was active when power was lost.

The D SERIES-TPRX3A was designed for absolute silent switching of audio signals. It provides a balanced line-level output that may be connected unbalanced.

The -TPRX3A features bridging inputs, allowing it to be connected to the LOOP OUT jack of other receivers. The bridging input circuits used in all FORMAT-A twisted pair receivers allow connection of up to 10 receivers for each cable pair. The possibility of multiple receiver locations adds enormous flexibility in the design of audio monitoring systems using RDL FORMAT-A products.

The -TPRX3A may be powered directly from a 24 Vdc power supply using either the power jack or the detachable terminal block. Local power connected to the module is also fed to all modules connected to the INPUT RJ45 jack. The -TPRX3A may be remotely powered through the twisted pair cable from any other module, signal distributor or RDL power inserter connected to the same twisted pair cable.

The D SERIES-TPRX3A remote controls are constructed on a steel frame. The electronics are fully protected within the rear enclosure. Use them with RDL wall-mounted accessories as part of a complete audio/video system.

Input:
RDL FORMAT-A
Input Connection:
RJ45
Format-A Signal Pairs Used (3):
A, B, C
Front-Panel Switches:
Momentary pushbuttons (3, 1 per input)
Front-Panel Indicators (3):
Selected channel
Output:
150 Ω balanced
Output Connection:
Detachable terminal block
Output Level:
+4 dBu Line level, nominal
Format-A Output:
RJ45 (loop-through)
Frequency Response:
10 Hz to 20 kHz (± 0.5 dB)
THD+N:
< 0.005% (1 kHz); <0.05% (20 Hz to 20 kHz)
Noise below +4 dBu:
< -85 dB
Off Attenuation:
< 90 dB (1 kHz); < 70 dB (20 Hz to 20 kHz)
Headroom above +4 dBu:
> 18 dB
CMRR:
> 80 dB (50 Hz to 150 Hz)
Power Connections (2):
Detachable terminal block; RJ45
Ambient Operating Environment:
0° C to 55° C
Power Requirement:
24 Vdc @ 45 mA plus connected loads
Dimensions:
1.6" (4.06 cm) W; 4.11" (10.45 cm) H; 1.89" (4.8 cm) D
Mounting Box Minimum Depth:
2.4"
Package Type:
Cardboard Box
Package Dimensions:
3.625 x 4.625 x 2.125 in.
Shipping Weight:
.385 lbs
WEEE weight:
.245 lbs.
Tariff code:
8543.70.9860

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D-SERIES

D Series products are user controls, indicators and connection plates that are compatible with Decora® style mounting. D Series modules and jacks connect directly to a variety of active RDL modules in multiple product series and are compatible with many OEM products. Products in this series may be active or passive. All D Series front panels are constructed of stainless or carbon steel for durability, shielding and static protection. Stainless steel models feature a brushed finish with direct lettering. Painted models are finished with a reverse-printed front-panel polycarbonate laminate which provides an attractive, durable finished appearance.

Connector plates offer pass-thru jacks or rear-panel solder terminals. Transformer-isolated connector modules are equipped with a shielded enclosure and a rear-panel terminal block.

Active models include remote controls to provide source selection, routing, level control, muting, source or level LED indication and more.

The depth of D Series products is sufficiently shallow to permit mounting not only in standard North American electrical boxes but also in RDL wall boxes designed to fit in narrow walls used in international installations. RDL also offers a variety of related accessories for wall mounting, surface mounting and desktop chassis mounting of D Series products, as well as matching metal trim plates.

Attractive styling, ease of installation, long-life pushbuttons, high quality connectors and worldwide mounting possibilities make D Series products a preferred long-term resource for system design solutions. D-SERIES modules are designed and manufactured in the U.S.A.

DB-TPRX3A DB-TPRX3A