M55116 to XTS

$133.00

Microphone Type

Audio connectivity

Radio Interface Type

6-Pin Adapter

M55116 to Motorola XTS
6-Pin NATO → Universal Connector (M4)

Bridge your mil-spec 6-pin NATO PTT to Motorola XTS-series and legacy multi-pin radios via the M4 Universal Connector.

Signal Chain

Headset → Downlead → 6-Pin NATO PTT → This Adapter → Motorola XTS

PTT Side

Input connector (from your PTT):

U-329/U (M55116 6-Pin NATO Female)

Radio Side

Output connector (to your radio):

Motorola M4 (Universal Connector / Multi-Pin)

Dynamic vs. Electret — Which Variant?

⚡ Dynamic (Amped)

~150Ω dynamic microphone — requires amplification circuit in the adapter

Headsets: Peltor COMTAC, Ops-Core AMP, MSA Sordin MIL, OTTO NoizeBarrier, Earmor M31/M32

🔌 Electret

~2kΩ electret microphone — no amplification needed

Headsets: 3M Peltor LiteCom, commercial/LE electret headsets

⚠ Wrong impedance = no transmit audio. Dynamic mics on an electret adapter produce barely audible or silent transmissions. When in doubt, choose Dynamic — most tactical headsets are dynamic.

Compatible Radios (M4 / Universal Connector)

XTS Series (5000, 3500, 2500, 1500)
MTX Series (838, 850, 8250, 9250)
HT1000 / MT2000 / MTS2000
EF Johnson (5100, 5300, 51SL)

1-Year Warranty | Designed & Manufactured by DISCO32

Buy American Act Compliant

View PTT Configurator