In a P25 Conventional system, the icon of the encryption type used in the previous reception blinks from when the
reception completes until the time configured in
Receive Hang Time
if
Receive Hang Time
is configured. If the
PTT
switch is pressed and the transceiver activates Talkback before the time configured in
Receive Hang Time
elapses, the
encryption type and Key ID used in the previous reception is used to transmit. The icon changes from the blinking state
to lighting state.
In a P25 Trunking system, the “
” icon or “
” icon blinks if the following conditions are satisfied:
0
Key ID matches.
0
Talkgroup ID matches (upon receipt of a Group Call).
0
Unit ID matches (upon receipt of an Individual Call).
0
Transmitting:
The icon of the encryption type configured on the transmitting channel appears.
In a P25 Conventional system, the icon of the encryption type used in the previous reception blinks until the time
configured in
Transmit Hang Time
expires if
Transmit Hang Time
is configured. After the time configured in
Transmit
Hang Time
elapses, the icon of the encryption type configured on the transmitting channel appears. If the
PTT
switch
is pressed and the transceiver activates Talkback before the time configured in
Transmit Hang Time
elapses, the icon
of the encryption type used in the previous reception appears and the transceiver starts transmission.
About the Behavior of the LED (Secure Indicator) (P25 Trunking System Only)
Secure Indicator
is the function to flash the LED green when the transceiver receives an encrypted voice call in a P25
Trunking system.
If this function is enabled, the LED of the transceiver flashes green when the transceiver receives an encrypted voice call
on a communication channel.
The following is the relationship between Busy LED and secure Indicator:
Table 4-1 LED Statuses upon Receipt of Voice Communication
Configuration using KPG-D1/ D1N
Encryption status of the received signal
Secure Indicator
Busy LED
Clear
Secure
Check
Check
Lights
Flashes
Uncheck
Disappears
Flashes
Uncheck
Check
Lights
Lights
Uncheck
Disappears
Disappears
Note
On a communication channel, the Busy LED lights even during the Hold Time by the system.
Configuration using KPG-D1/ D1N
Configuring
Secure Indicator
to be enabled or disabled (
Transceiver Settings > Personal > Personal Features >
P25 Trunking > Encryption)
4 COMMUNICATION SECURITY
4.4 Transceiver Behavior upon Receipt of Encrypted Communication Data
P25 FUNC (K)/Ver 2.20
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