RDL DS-TPRX3A, DB-TPRX3A Datasheet

TWISTED PAIR FORMAT-A

Models D-TPRX3A, DS-TPRX3A, DB-TPRX3A
Three Input Format-A Source Selector

DB-TPRX3A

DS- TPRX3A

D-TPRX3A

 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

The D SERIES-TPRX3A modules are single pair audio sending modules compatible with RDL Format-A twisted pair products. These
modules are designed to be mounted in wall boxes, cabinets or other enclosures that allow users to connect audio sources.

APPLICATION: 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 -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.

 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

RDL  659 6th St.  Prescott, AZ., USA 86301  [phone]  FAX [phone]  www.rdlnet.com

FORMAT-A TWISTED PAIR

Models D-TPRX3A, DB-TPRX3A, DS-TPRX3A

Three Input Format-A Source Selector

STEP 1: Connect 24 Vdc to the power input terminals if this module is not being powered through the twisted pair cable from another module or if this module is

located an excessive distance from the next powered module on the cable.

STEP 2: Connect the twisted pair cable(s) and fasten the module in its mounting box.

Installation/Operation

EN55103-1 E1-E5; EN55103-2 E1-E4

Typical Performance reflects product at
publication time exclusive of EMC data, if any,
supplied with product. Specifications are
subject to change without notice.

TYPICAL PERFORMANCE

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)

Radio Design Labs Technical Support Centers

U.S.A. [phone], [phone]; Fax: [phone]

891-5630

Europe [NH Amsterdam] (++31) 20-6238 983; Fax: (++31) 20-6225-287

Pair A: Audio +4 dBu
Pair B: Audio +4 dBu
Pair C: Audio +4 dBu
Pair D: Power +24 Vdc

The 568B standard may be used if the connectors at both ends of the cable are wired identically.

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

RJ45 Standard wiring

Tab on bottom of connector

RJ45 conductor colors shown are for 568A standard.

(1) + White / Green
(2) – Green
(3) + White / Orange
(4) – Blue
(5) + White / Blue
(6) – Orange
(7) + White / Brown
(8) – Brown