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• If after five tries the message is not acknowledged, a tone sounds and “NO ACK” is 

displayed.

The status messaging feature allows you to manually or automatically send your current 
status to your dispatcher on P25 channels. Up to eight status conditions can be 
preprogrammed, and they are identified by an alias. If the STATUS option switch is 
programmed, status conditions are sent as follows:

1 Momentarily press the STATUS option switch. The alias of the current status condition 

is displayed.

2 To change the current status, rotate the Select switch until the desired status is 

displayed. Then to send the status, momentarily press the PTT switch. One of the 
following events then occurs:

If five beeps sound and “ACK RCVD” is displayed, the status was received and 
acknowledged by the system.

If after five tries the message is not acknowledged, a tone sounds and “NO ACK” is 
displayed.

P25 packet data transmission capability is available with 5300 ES mobiles. A DATA 
option switch must be programmed to toggle the data mode on and off.

The P25 Packet Data mode allows a subscriber unit to act as a packet data modem for a 
remote application connected to the subscriber unit via an RS-232 or SLIP (Serial Line 
Internet Protocol) connection. The SLIP connection requires an Ethernet port which is 
currently not available.

A special Data Pigtail Cable, Part No. 597-2002-282, is installed in the radio to provide 
the RS-232 port (female DB9 connector) for connecting the external data equipment to the 
5300 ES mobile.