E.F. Johnson Company 53SL ES Series, Руководство по эксплуатации

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2-2 53SL ES Series Mobile Radio Operating Manual April 2009
Standard Control Head Section 2 - Controls & Display
ON-OFF/Volume - Pressing this control turns power ON and OFF, and rotating it sets the
volume level.
Select/Zone Switch - This switch can be pressed or rotated. Selects zones/channels and is
also used for other functions such as selecting names from a call list. When selecting
zones/channels, a bar above the zone or channel display (see Figure 2.3) indicates which is
being changed. This bar is switched between displays by pressing this switch, and zone
and channels are selected by rotating it. If this switch is pressed and held, the radio enters
Menu Mode.
Multi-function Indicator - This is a two-color LED that indicates the following:
Red (constant) - Transmitter keyed (PTT switch pressed).
Green (constant) - Busy condition (carrier detected in receive mode).
Note This indicator is disabled when the Surveillance mode is programmed (see Section 5.10).
Option Buttons - Each of the six options buttons on the front panel (including the one
located to the left of the display- See Figure 2.2) can be programmed by your system
operator to control some function. The button functions can be different for each operating
mode (conventional, SMARTNET/SmartZone, and Project 25 Trunked). Therefore, up to
18 functions can be controlled by these buttons.
Figure 2.2 Option Buttons
Speaker - An internal 16-ohm, 5-watt speaker is located behind the grille. An optional 4-
ohm, 12-watt external speaker may be used if desired. The internal speaker is disabled
when an external speaker is used.
Programmable Option Buttons
F1 F2 F3 F4 F5 F6