RDL D-TPRX3A, DB-TPR3A Datasheet

TWISTED PAIR FORMAT-A

Models Models D-TPR3A, DB-TPR3A, DS-TPR3A
Format-A Three-Pair Receivers

D-TPR3A DS-TPR3A DB-TPR3A

• Balanced Mic or Line Level XLR Output

• Switch-Selectable Output Level on Rear Panel

• Two Unbalanced -10 dBV Phono Jack Audio Outputs

• XLR From Pair A; L From Pair B; R From Pair C

• Remote Powering through Twisted Pair Cable

The D SERIES-TPR3A modules are three-pair audio receiving 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 external equipment. The -TPR3A models mount in RDL
WB-1U and WB-2U wall boxes, or in standard U.S. electrical boxes. The D-TPR3A features a white front-panel laminate with gray lettering that matches
RDL Decora©-style remote controls. The DB-TPR3A features a black front-panel laminate. The DS-TPR3A is constructed of stainless steel to coordinate
with RDL Decora-style stainless steel remote controls in commercial/industrial installations.

APPLICATION: The D SERIES-TPR3A modules feature an XLR audio output and two RCA phono jack outputs, one

for the left channel and one for the right channel. The audio signal received from pair A of the RJ45 INPUT jack
feeds the XLR audio output jack. The output level from the XLR jack is set to either MIC or LINE level during
installation using a rear-panel switch. The audio signals received from pairs B and C of the twisted pair cable are
buffered to drive the RCA output jacks at the standard -10 dBV consumer level.

Although the D SERIES-TPR3A modules access signals from all three cable pairs, additional receivers may be
connected to the same twisted pair feed. The bridging input circuits used in all FORMAT-A twisted pair receivers
allow connection of up to 10 receiver outputs for each cable pair. The possibility of multiple receiver locations
adds enormous flexibility in the design of audio routing systems using RDL FORMAT-A products.

The D SERIES-TPR3A may be powered directly from a 24 Vdc power supply using the rear-panel detachable
terminal block. Local power connected to the module is also fed to all connected remote modules. The -TPR3A
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. Module power is indicated by a front-panel LED.

RDL FORMAT-A features superior audio performance that rivals or exceeds shielded wiring. Design simplicity,
ease of installation, unsurpassed flexibility, automatic fused power, exceptional hum rejection, low noise, and low
distortion provide designers and installers the optimum choice in economical twisted pair products.

• Fused Local Power Feeds all Connected Modules

• Local Power Input on Terminal Block

• Blue LED Indicates Module is Powered

• Utilizes All Three Format-A Pairs

• Studio-Quality Precision Active Balanced Circuitry

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

TWISTED PAIR FORMAT-A

Models D-TPR3A, DB-TPR3A, DS-TPR3A

Format-A Three-Pair Receivers

STEP 1: Set the XLR OUT switch to the desired output level for the front-panel XLR jack (MIC or LINE).

Installation/Operation

Declaration of Conformity available from rdlnet.com.

Sole EMC specifications provided on product package.

Specifications are subject to change without notice.

STEP 2: 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. Note: The front-panel power LED will be illuminated if
this module is powered. If this module is powering other modules through the cable and if there is a wiring short, the short must be cleared then
power must be turned off to this module for 10 seconds to reset the internal protection circuit.

STEP 3: Connect the twisted pair cable coming from Format-A senders or distributors and fasten the module in its mounting box.

Connection from Single-Pair, Two-Pair
or Three-Pair Senders (direct, or via an
RDL Twisted Pair Power Inserter)

or

Connection from Format-A Distributor

or

Connection from other Format-A
Receivers

Pair A: Audio +4 dBu

Pair B: Audio +4 dBu

Pair C: Audio +4 dBu

Pair D: Power +24 Vdc

RJ45 conductor colors shown are for 568A standard. The 568B standard m ay be used if the connectors at both ends of the cable are wired identically.

REQUIRED CONNECTION

TWISTED
PAIR CABLE

TP CABLE

MIC

LINE

XLR
OUT

D SERIES-TPR3A

NOTE: Connect a 24 Vdc power supply
to the module if power is not being
supplied through a twisted pair cable
from a connected module.

RJ45 Standard wiring

Tab on bottom of connector

24 VDC

24 Vdc power
connection
(see note)

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

SWITCH LOCATION FOR ANY MODEL

TP CABLE

MIC

LINE

XLR
OUT

D SERIES-TPR3A

XLR OUTPUT LEVEL SELECTOR

24 VDC

TYPICAL PERFORMANCE

Input: RDL FORMAT-A
Input Connection: RJ45
Format-A Signal Pairs Used (3): A, B, C
Outputs (3): 150 Ω balanced; 100 Ω unbalanced
Output Connection: XLR (balanced Mic or Line); RCA Phono Jack (2)
Ou tp ut L eve l: XLR: -45 dBu Mic or +4 dBu Line Level, Switch-selectable on rear panel;

Frequency Response: 10 Hz to 50 kHz (+/- 0.1 dB)
THD+N: < 0.005%
Noise below +4 dBu: < -90 dB

RCA phono: -10 dBV

Radio Design Labs Technical Support Centers

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

891-4585C

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

Crosstalk: < 90 dB (1 kHz); < 75 dB (20 Hz to 20 kHz)
Headroom above +4 dBu: > 18 dB
CMRR: > 80 dB (50 Hz to 150 Hz)
Indicator: Power In
Power Connections (2): Detachable terminal block; RJ45
Power Requirement: 24 Vdc @ 45 mA plus connected loads
Maximum Load Current: 155mA
Di me ns ion s: 1.6" (4.06 cm ) W; 4.11" (10.45 cm) H; 1.89" (4.8 cm) D
Mounting Box Minimum Depth: 2.4"