User manual
Company Condential Proprietary
Before you start!
X10DR has been designed to allow simple connectivity to most radio models from those dating back from the 90’s to the most cur-
rent digital models from most professional radio manufacturers. Understanding the basic connectivity will allow you to successfully
connect to just about any wireless radio device, or to allied wired radio control consoles. The following describes the pin out con-
nectivity of the X10DR mobile charger’s 15 pin DB15 connector. Note: pins not described are used for factory set-up and should not
have DC voltages or grounds applied to them otherwise the device may be damaged or may cause incorrect operation.
Pin 1. Switched B+ In: Used to automatically turn on/off X10DR by sensing the host radio’s status. Normally, this pin connects to a host
radio’s switched B+ output, if available (no current required), if not, the installer should supply a manual on/off switch for user activa-
tion of the unit. Note: The speaker microphone’s battery will still charge when the switched B+ is removed.
Pin 2. Transmit Mic Audio Out: This should connect to the host mobile’s transmit audio input. This is the audio from the Wireless Micro-
phone that is to be transmitted over the host mobile radio’s transmitter. It is factory set for approx 80mV RMS. This can be adjusted up
to about 800mV by carefully adjusting the radio audio output VR1 trimpot. (Subject to factory pre-programmed settings. The maxi-
mum level can be reset electronically by use of the X10DR Programming kit.)
Pin 3. Radio Mic Lo: This connects to the host mobile’s microphone audio ground. Note: on some TDMA digital radios this pin may be
best connected to only the shield of the interface cable. This is due to TDMA noise that may be transferred from the host mobile and
appear as noise on the X10DR unit.
Pin 4. Receive Audio In: This should connect to the host mobile’s receive audio output. This audio source should be under the radio’s
squelch control and of a level above 40mVrms. Ideally, it should be sourced pre-volume control but can be post, as long as the host
Pin 5. DC Power In-
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nected to ensure the units can recharge when the host mobile may be turned off.
Pin 6. Ext. PTT Out: This pin provides a switched ground output and should connect to the host mobile radio’s external PTT input.
Some radio models have active high PTT inputs. Those models will require the use of special interface cables that allow the X10DR
output to be inverted to an active high.