EF JOHNSON 5100 ES II, Operating Manual

Page: 28 / 144

2-4 5100 ES Model II/III Portable Radio Operating Manual December 2006
Controls and Display
Channel Switch - This 16-position switch selects up to 16 channels in the current zone.
Additional zones can be programmed to allow up to 512 channels to be selected by this
switch. This control can be disabled as described in Section 3.3.
Rotary Option Switch - This is a three-position switch that can be programmed to control
various options. The “A” position is “on” and the “B” and “C” positions are “off” (see
Section 4.1). When this switch is programmed to select zones, “A” selects Zone 1, “B”
Zone 2, and “C” Zone 3 if applicable.
Antenna Connector - This is the connection point for the antenna. Make sure the antenna
is tight before using the radio.
Emergency Switch - This switch or some other option switch can be programmed as an
Emergency switch to alert a dispatcher of an emergency condition. Refer to Sections 5.9
and 6.9 for more information. This switch can also be programmed for other functions.
2.3 Side Controls
Figure 2.3 Side Controls and Jacks
PTT (Push-To-Talk) Switch - This switch is pressed to turn the transmitter on to transmit
a message. It is then released to listen. Transmitting is indicated when the top panel
indicator is constant red or
is displayed (surveillance mode only, see Section 4.8).
Option Switches 1, 2, and 3 - Each of these switches can be programmed to control a
specific function (see Section 4.1). In addition, they can be programmed for soft power
down (see Section 3.1.2). These switches can also be temporarily disabled by the keypad
lock feature (see Section 3.6) or permanently disabled.
Battery - To remove the battery, press the release button on the bottom and pivot the
bottom of the battery outward.
Option Switches
PTT Switch
Battery Pack
Accessory
Connector
1
2
3