A.W. Communication Systems DRC1 Configuration Handbook - page 18
TX Close.
The code set here causes the mobile radio set to re- mute after a conversation with control.
This code is transmitted in response to the “close” button on the DRC1 keypad being
operated.
TX Ack To RX.
When a mobile calls in and that call is queued for operator attention at some later time, the
mobile benefits by having a confirmation signal that the call has actually been received and
queued. The code set into this parameter achieves this, and the mobile radio set should be
programmed to give a suitable response when this code is received.
TX Night Ack To RX
In some systems the control room will not be manned 24 hours a day. The DRC1 has been
designed to provide a “Night Service”, and this mode is engaged by operating the night key
on the DRC1 keypad. In night service, talk through is engaged permanently and calls are not
queued.
It is intended that the mobiles will communicate with each other when night service is
enabled. The parameter set here is intended to enable mobile to mobile calls under sell call
control. For example if the code AAAAA were entered, then upon receiving a valid incoming
selcall, the DRC1 would output AAAAA. This would open all mobiles for communication.
Selcall General Information.
Whilst any selcall codes are being set within the installation menu facility, it should be noted
that the keys F1-F4 provide codes A to D and, Shift-0 for Null (no tone) respectively.
Outgoing Status Code
The DRC-1 if configured, will send an outgoing status as part of the normal selcall facility.
Should the operator need to change the code sent, then operation of the
Shift-2 key will access a menu to achieve this change. [
Shift-2
], [
0 to 9
], [
menu
] are the four
key strokes needed to change your outgoing status code.
Night Service.
The night service facility is turned on and off by the operator using the Night key on the
DRC-1. When the night service is enabled, the reception of any valid sel call code will enable
the talk through path, and cause the system to output an all- call sel call code. If programmed,
the night service lock out will remove the TT facility when the time programmed into this
parameter time out.
Audio Recording and Playback
A local audio recording device may be connected to the record and playback port. Incoming
and outgoing audio is continuously streamed to this port for recording. Should the recording
device be capable of playback, then operating the DRC-1 [
Aux
] key will open the audio input