E.F. Johnson Company 5100 ES, Руководство по эксплуатации

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ES Series Models II/III Portable Radio Operating Manual 7-19
Multi-Net Features
To receive a Directed Group call, a channel programmed for the group ID of the call must
be selected or scanned, or be a block or priority ID as described in Sections 7.2.1 and
7.2.2. To respond to a Directed Group call, a channel programmed for that group ID must
be selected. If there is no channel programmed, with that ID, a response cannot be made.
The Switch converts a Directed Group call to a group call for the radio receiving it, and to
a Unit call for the originating radio receiving a response.
To receive other special calls such as All Call and Reassign, all that is required is the
Multi-Net system programmed for the site be selected or scanned. When a landside
telephone call is made to a specific radio, it is always classified as a telephone call even
though the unique ID of the radio may be specified (see “Landside-Originated Calls”
which follows).
7.10.6 Landside-Originate Special Calls
All three special calls can also be placed from a landside telephone by dialing similar
digits as when the call is placed by a subscriber unit.
If the system has DID lines, the landside caller can dial a subscriber unit directly because
each subscriber unit that can receive these calls is given its own phone number. If the
system has standard trunk lines, the telephone number of the system is dialed. Then when
the system answers, a short tone sounds to indicate that the digits specifying the
destination of the call should be dialed. The same digits are dialed as described in the
preceding “Placing a Special Call”. The landside telephone must produce standard DTMF
tones to dial these digits.
After these digits are dialed, a beep is heard which indicates that the number was accepted
by the system. Ringing then indicates that the radio is being rung unless it is a Directed
Group call. With those calls, no ringing of the radio occurs and another beep is heard
which indicates the path is complete and speaking should begin.
After the subscriber unit answers, the landside party should respond in the normal manner.
Remember that the subscriber unit is operating half duplex and cannot hear the landside
party while transmitting. When the call is finished, it should be terminated by the
subscriber unit. Three beeps indicate that the call has terminated.
7.11 PTT Queuing (Camp-On) Disable
Each Multi-Net system can be programmed so that PTT queuing is disabled. This prevents
the PTT switch from being held down while a message is being received in order to
immediately access the system when the repeater is no longer busy.