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Radio Design Labs

Radio Design Labs SF-TPS24A Line-Level Sender

£810.00inc. VAT
£675.00 ex. VAT
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Bought in the UK, backed in the UKWhy it matters →
  • Sourced through UK distribution
  • UK manufacturer warranty
  • UK-based engineers
  • No import duty or customs charges
  • GBP pricing, UK VAT invoices
Return within 14 days
Installation services availablePurchase orders: education customers only
7 Years Warranty Included
Key specifications
Inputs (24)20 kΩ balanced
Input ConnectionDetachable Terminal Block (Balanced)
Input Level+4 dBu Bal.; +22 dBu Max
Format-A Signal Pairs Used (3)A, B, C (per section)
OutputRDL TP Format-A
Output ConnectionRJ45
Frequency Response10 Hz to 50 kHz (± 0.1 dB)
THD+N< 0.005%
All 18 specifications

Description

The SF-TPS24A is an eight-section audio sending chassis compatible with RDL Format-A twisted pair products. Three +4 dBu balanced line-level sources may be connected to each section on a detachable terminal block. That section converts and transmits those signals on pairs A, B and C of the associated RJ45 connector.

The SF-TPS24A feeds all three signal pairs in the twisted pair cable. No other sending modules may be connected on the same cable with each RJ45 output.

The SF-TPS24A 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 OUTPUT 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 Sender Sections

• Sends up to 24 Audio Channels

• Three +4 dBu Balanced Inputs per Section

• Detachable Terminal Block Inputs

• Audio Inputs to Feed Pairs A, B and C per Section

• Utilizes All Three Format-A Pairs

• Local Power Feeds all Modules Connected to OUTPUTs

• 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

Manufacturer part number SF-TPS24A.

Key features

Inputs (24)

20 kΩ balanced

Input Connection

Detachable Terminal Block (Balanced)

Input Level

+4 dBu Bal.; +22 dBu Max

Format-A Signal Pairs Used (3)

A, B, C (per section)

Output

RDL TP Format-A

Output Connection

RJ45

Frequency Response

10 Hz to 50 kHz (± 0.1 dB)

THD+N

< 0.005%

Technical specifications

Connectivity
Inputs (24)20 kΩ balanced
Input ConnectionDetachable Terminal Block (Balanced)
Input Level+4 dBu Bal.; +22 dBu Max
OutputRDL TP Format-A
Output ConnectionRJ45
Power Connections (2)Power Jack; Detachable Terminal Block
Power & Physical
Dimensions8.74" (22.2 cm) W; 1.68" (4.27 cm) H; 5.78" (14.68 cm) D
Shipping Weight2.64 lbs.
General
Format-A Signal Pairs Used (3)A, B, C (per section)
Frequency Response10 Hz to 50 kHz (± 0.1 dB)
THD+N< 0.005%
Noise below +4 dBu< 90 dB
Crosstalk< 85 dB (20 Hz to 20 kHz)
Headroom above +4 dBu> 18 dB
CMRR> 60 dB (50 Hz to 150 Hz)
Indicators (8)Power (1 per RJ45)
Ambient Operating Environment0° C to 50° C
Power Requirement24 Vdc @ 440 mA (per board) plus connected loads (1.6 A max)

Documents

Delivery & returns

Estimated delivery 9 Sept - 13 Sept. UK mainland delivery only. Some large or made-to-order items carry longer lead times, shown on the product page.

Unused items in original packaging can be returned within 14 days of delivery — see the returns policy for how business and consumer returns differ. Faulty items are covered under manufacturer warranty and by your statutory rights.

Full delivery & returns policy

Bought in the UK, backed in the UK

  • This item is sourced through UK distribution and ships to you from within the UK, so the order never crosses a customs border.

  • The manufacturer warranty is honoured here in the UK. If something fails, you deal with us, not with an overseas seller in another time zone.

  • Our own UK-based engineers install, commission and support what we sell, and can attend site when a system needs hands on it.

  • Delivered within the UK mainland, so there is no import duty, customs charge or courier handling fee waiting for you on delivery.

  • Prices are in pounds sterling with proper UK VAT invoices, and purchase orders are accepted from approved education accounts: no currency conversion and no surprises at the door.

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Payment & security

Pay securely by card. Education customers can apply for a 30-day purchase order account.

Schools, colleges, sixth forms, universities and multi-academy trusts can order on invoice, with no card payment required. Purchase orders and credit terms are for education customers only.

All transactions are processed over an encrypted, secure checkout.

Purchase order & invoice terms

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