RDL SF-TPR24A Twisted Pair Format-A Line-Level Receiver

The RDL SF-TPR24A is an eight-section audio receiving chassis compatible with RDL Format-A twisted pair products. Each section receives up to three audio sources and provides three outputs corresponding to signal pairs A, B and C. A studio-quality buffer amplifier feeds +4 dBu balanced outputs through a detachable terminal block.

The SF-TPR24A 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 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 SF-TPR24A 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 eight INPUT RJ45 jacks. Power for each RJ45 connector is protected against wiring faults by an automatically resetting fuse. Front-Panel green LEDs indicate valid module power on each RJ45.

Key Features

• Eight Separate Three-Pair Format-A Receiver Sections
• Receives up to 24 Audio Channels
• Three +4 dBu Balanced Outputs per Section
• Detachable Terminal Block Outputs
• Audio Outputs for All Three Pairs (A, B and C) per Section
• Local Power Feeds all Modules Connected to INPUTs
• Wiring Fault Protection by Automatic Resetting Fuse
• Local Power Input on Terminal Block or dc Power Jack
• Green LED per Section Indicates Validity of Module Remote Power
• Studio-Quality Precision Active Balanced Circuitry

Technical Specifications

Inputs (8)
RDL Format-A
Input Connections
RJ45
Format-A Signal Pairs Used (3)
A, B, C (per section)
Outputs (24)
150 ω Balanced
Output Connection
Detachable Terminal Block (Balanced)
Output Level
+4 dBu Bal. nominal, +22 dBu Max
Frequency Response
10 Hz to 50 kHz (± 0.1 dB)
THD+N
< 0.005%
Noise Below +4 dBu
< 90 dB
Crosstalk
Below noise floor (20 Hz to 20 kHz, +4 dBu input)
Headroom Above +4 dBu
> 18 dB
CMRR
Indicators (8)
> 80 dB (50 Hz to 150 Hz)
Power Connections (2)
Ambient Operating Environment
Power Requirement
24 Vdc @ 360 mA plus connected loads (1.6 A max)
Dimensions
8.74 x 168 x 5.78” (22.2 cm x 4.27 cmx 14.68 cm)
Package Dimensions
9.5 x 2.25 x 7” (24.1 cm x (5.71 cm x 17.8 cm)
Shipping Weight
2.66 lbs
WEEE weight
2.32 lbs
Tariff code
8543.70.9960
Item Includes
1x SF-TPR24A Line-Level Receiver