Introducing the D SERIES-TPSM2A Audio Sending Modules
The D SERIES-TPSM2A modules are specialized two-pair audio sending modules that are compatible with RDL Format-A twisted pair products. Designed for easy installation in wall boxes, cabinets or other enclosures, they allow users to connect audio sources without hassle. The TPSM2A models can be mounted in RDL WB-1U and WB-2U wall boxes or standard U.S. electrical boxes. Each model has a distinct appearance - the D-TPSM2A features a white front-panel laminate with gray lettering to match RDL Decorac-style remote controls, the DB-TPSM2A sports a black front-panel laminate while the DS-TPSM2A is made from stainless steel to match RDL Decora-style stainless steel remote controls in commercial/industrial installations.

Application
Featuring two XLR microphone inputs, the D SERIES-TPSM2A modules are equipped with IEC 48 V phantom (P48) and accept input signals from both dynamic and condenser microphones. The studio-quality microphone preamplifiers amplify the input signals optimized for normal operating levels. The GAIN switch on the rear panel can be set to AUTO (automatic) gain, which sets the gain to 60 dB for dynamic microphones or 40 dB for condenser microphones. If consistently low mic levels are expected, the switch can be set to the HIGH gain position. For use with condenser microphones only, it can be set to LOW gain. Each pre-amplified microphone source is routed to one output cable pair selected during installation using a rear-panel switch.

The D SERIES-TPSM2A modules only drive two cable pairs, hence they accept a signal and power from another mic-level or line-level Format-A sender. They have a second RJ45 jack for that input cable. A single-pair sender can be chained with the -TPSM2A, but if two senders are connected together, each audio source must feed a different pair: A, B or C. The power pair and all three audio pairs are fed through both rear-panel RJ45 jacks.

Power supply
The D SERIES-TPSM2A modules must 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.

RDL Format-A Features
RDL FORMAT-A offers superior audio performance that rivals or exceeds shielded wiring. Its design simplicity, ease of installation, unsurpassed flexibility, automatic fused power, exceptional hum rejection, low noise, and low distortion make it the ultimate choice for designers and installers looking for economical twisted pair products.

Key Features

• The D SERIES-TPSM2A modules are audio-sending modules compatible with RDL Format-A twisted pair products.
• These modules are designed for installation in wall boxes, cabinets, or enclosures that allow users to connect audio sources.
• The TPSM2A models can be mounted in RDL WB-1U and WB-2U wall boxes, or standard U.S. electrical boxes.
• The D-TPSM2A module has a white front-panel laminate with gray lettering, matching RDL Decora-style remote controls.
• The DB-TPSM2A module features a black front-panel laminate.
• The DS-TPSM2A module is made of stainless steel to coordinate with RDL Decora-style stainless steel remote controls in commercial/industrial installations.
• It has two balanced microphone XLR inputs with P48 phantom power.
• The rear panel allows for switch-selectable mic gain.
• The gain selector provides fixed 40 dB, 60 dB, or automatic gain options.
• The automatic gain setting is 60 dB for dynamic microphones and 40 dB for condenser microphones.
• It has an output pair selector to feed RJ45 pairs (A, B, or C) for each preamplifier.
• The module allows signal and power pairs to pass through RJ45 connectors.
• It can be remotely powered through the RJ45 connector.
• The module utilizes two Format-A pairs.
• It can be daisy-chained with a single-pair Format-A sender.
• The circuitry of the module is studio-quality precision active balanced.

Technical Specifications

TYPICAL PERFORMANCE
Inputs (2)
XLR (3 pin, 1=GND, 2+, 3-)
Gain (fixed)
40 dB (LOW gain); 60 dB (HIGH gain)
Gain (AUTO)
40 dB for condenser mics; 60 dB for dynamic mics
Maximum Input Level
>-18 dBu (LOW gain); >-35 dBu (HIGH gain)
Input Impedance
> 1 kŸ€ balanced
Phantom Power
48 (48 V per IEC 61938: 2013)
Output
RDL TP Format A
Format-A Signal Pair Used
Switch-selectable A, B, or C (rear panel; one switch for each preamplifier)
Headroom (above +4 dBu output)
>18 dB
Channels
2 (1 and 2; may be used for stereo or as two separate mono preamplifiers)
Gain Selectors (2)
LOW, HIGH or AUTO (rear panel; one for each preamplifier)
Frequency Response
20 Hz to 20 kHz (+/- 0.5 dB)
THD
< 0.05%
CMRR
> 80 dB (20 Hz to 5 kHz)
Residual Noise (below +4 dBu output)
< -85 dB (20 Hz to 20 kHz, 40 dB gain, 150 Ÿ€ source)
< -70 dB (20 Hz to 20 kHz, 60 dB gain, 150 Ÿ€ source)
Crosstalk
< -70 dB (20 Hz to 15 kHz, 60 dB gain, 150 Ÿ€ sources)
Power Requirement
24 Vdc @ 80 mA (120 mA with phantom), Ground-referenced