jotron TR-910, Руководство оператора и инструкция по установке, Страница: 22 / 48

3.1 Front panel controls and connector
• Volume control
• Menu naviga on
• Value and parameter se ng
3.1.3 Shortcut keys
In the home screen, the shortcut key func ons are shortcuts to pre-stored frequencies. Otherwise, the func on
of the shortcut keys will change depending on ac ve submenu. The display will indicate the func on of each
shortcut key, using text or icons.
3.1.4 Mic/Headset connector (RJ45)
The Mic/Headset connector is a RJ45 type connector and is used for connec ng a Speaker Mic with PTT
switch, or a headset with earpieces, microphone and PTT switch. TR-910 supports both dynamic and electret
microphones and this is con
fi gurable through the advanced se ngs/con fi gura on/audio menu.
Table 15: Mic/Headset connector, pin out
Mic/Headset connector
Name Pin Func on
Mic input 1 Microphone input. Support dynamic and electret types with
adjustable sensi vity. Mic Bias is selectable (8 V via 2k2).
Mic GND 2 Microphone ground
Headset 3 Headset output, contains side-tone and received audio.
USB (+) 4 USB Data +
USB (-) 5 USB Data -
PTT 6 PTT input. Grounding this pin will key the transmi er
+5 VDC 7 +5 V supply for USB devices. Max 100 mA.
GND 8 Common ground
The connector also has an USB interface. This interface can be used for con fi gura on of the radio through
the Jotron MDT program. To use this interface a speci fi c cable is required with the following connec ons to a
standard Type A USB connector:
Table 16: USB pin out
USB cable
Mic/Headset connector (RJ45) USB type A connector
Pin 4 - USB Data + Pin 3 D+
Pin 5 - USB Data - Pin 2 D-
Pin 8 - GND Pin 4 GND
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Doc. No.: 103614 TR-910 Operator Rev. AB