Extended Dispatch Operation - Motorola APX 7500 Detailed Service Manual

Feature Operation: Wireline Interface

4.12.3.3 Extended Dispatch Operation

The Consolette supports a set of features needed for typical Console operation. These features are
allowed on Analog Conventional with MDC and ASTRO P25 Conventional channels only. The
Consolette does not act as a trunked station, and as a result, these features are not supported on
Trunking channels. To enable this extended functionality, the Extended Dispatch Operation option
(GA00469) must be ordered and the field enabled in the radio CPS for each System. The Console
user interface for these messages is the same as its user interface for ASTRO conventional
channels.
NOTE: It is recommended that Scan operation not be used simultaneously with the Extended
Dispatch functionality. This is to prevent inadvertent responses such as ACKs on a different
channel than what the originating message was received on. Responses are transmitted on
the selected channel, not the scanned-to channel.
4.12.3.3.1 Decode Functionality
When the Consolette receives a supplementary data transmission it is reported via the ACIM Link.
The features supported are based on the current selected air interface. The supplementary data
messages that can be received are:
• Emergency Alarm – a subscriber unit can send an emergency alarm over-the-air at any time.
The Consolette will receive it, decode it and provide it to the Console. The corresponding ACK
from the Console is then transmitted by the Consolette over-the-air back to the specified
subscriber on Conventional channels only.
• Status Update – a subscriber unit can send a status update over-the-air at any time. The
Consolette will receive it, decode it and provide it to the Console. The corresponding ACK from
the Console is then transmitted by the Consolette over-the-air back to the specified subscriber.
• Message Update – a subscriber unit can send a message update over-the-air at any time. The
Consolette will receive it, decode it and provide it to the Console. The corresponding ACK from
the Console is then transmitted by the Consolette over-the-air back to the specified subscriber.
NOTE: Emergency Alarm decode is supported on both trunking and conventional air interfaces, but
the corresponding ACK is only allowed on conventional air interfaces. Emergency Alarms on
a Trunking air interface are always acknowledged by the Trunking System.
NOTE: The APX Consolette can be configured to decode the MDC-1200 signaling and report the
received ID to the Console via the ACIM. The MDC audio is present on the wireline and may
be audible to the Console user. To prevent this, it is recommended to enable DOS (Data
Operated Squelch) in the MDC System and set the Rx Unmute Delay appropriately for the
system in the MDC Personality using APX 7500 CPS. When using an external MDC decoder
(ACIM MDC ID reporting disabled), the DOS must be disabled and the Rx Unmute Delay set
to 0ms in order to pass the MDC data down the wireline. (Refer to
section
4.12.3.3.2 Encode Functionality
When the Console users wish to transmit a supplementary data message to a subscriber in the field,
they do it in the same manner as for ASTRO conventional channels. The request is sent from the
Console to the Consolette which will then transmit the supplementary data over-the-air to a
subscriber. The features supported by the Consolette are based on the currently selected air
interface. The supplementary data messages that can be transmitted are:
• Status Request - allows the Console user the ability to remotely determine a specific
subscriber's status.
68009482001
3.7.1.1.3).
4-15
section 3.7.1.1.2 and
September 9, 2011