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5.11. EMERGENCY ALARM
5.11.1. Making an Emergency Call
When the emergency key is pressed and held for a time determined by the FPP, the
radio will change to emergency mode. Under emergency mode, the radio can operate
in three FPP configurable modes:
• Frozen. The screen will freeze in the state it was in before the
emergency mode became active. In addition, the Emergency
mode icon will be displayed.
• Blank. The screen will blank giving no indication to others that the radio
is in emergency mode.
When emergency mode is triggered, the radio can be configured by the FPP to
transmit and receive on a cyclic basis with FPP programmed time periods.
During Tx, the radio will generate an emergency broadcast call on either the currently
selected channel or an FPP nominated channel.
Others may listen to the automatic transmissions to hear conversations near the radio.
The power button is not operable in emergency alarm mode.
The radio can be programmed to either remain in emergency alarm mode or to exit
emergency alarm mode when the number of programmed cycles is completed. To
terminate the emergency alarm mode, the battery must be disconnected and re-
connected.
5.12. DUPLEX OPERATION
Duplex mode allows telephony calls to be made where users can simultaneously talk
and hear the other party, without the need to PTT during transmissions. During
operation, the audio is routed through the portables earpiece (located directly above
the display).
To activate duplex functionality, this mode must be enabled in both the infrastructure
and the terminal, and is applicable only to Tier III (Trunking) systems.
5.12.1. Setup – Infrastructure
In SDMT, on the Subscribers configuration page, ensure that the ‘Mode’ for the
relevant Portable radio ID is set to ‘Duplex Mode’.
5.12.2. Setup – SDP660
In the FPP, on the Systems branch of the navigation tree, ensure that the ‘Outgoing
Telephony Calls are Duplex’ checkbox is selected. see Figure 11.
Doc Number:
TNM-U-E-0114 ISSUE 1.4
Page
46