Operational Mode |
(Data Profiles, CCAP DAC) |
Selects the desired DAC (Data Access Channel) Operational Mode for the
current DAC (record / row) in
the DAC table. 
Operational modes are channel type identifiers that differentiate between
PDCH (Packet Data Channel) methods. Each DAC in this table corresponds
with a Data Steering Profile in the Site Controller (SC). DAC 1 corresponds
to Data Steering Profile 1, DAC 2 corresponds to Data Steering Profile
2, and so on. This selection applies only
for the current Trunking
- Data Profile.
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When a DAC is enabled for a radio as indicated by DAC information being received from the PDR (Packet Data Router) during SNDCP packet data registration, this selected Operational Mode for the DAC must match the Operational Mode for the corresponding Data Steering Profile in the Site Controller (SC). For example, if DAC 2 is set to "Controlled Channel Access", then Data Steering Profile 2 in the SC should be set up for the same "Controlled Channel Access" operational mode. |
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For compatibility with older systems, DAC Mode 1 (the first record/row) is always restricted to "Classic APCO 25". |
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For slotted data, "Controlled Channel Access" should be selected, otherwise "Classic APCO 25" should be selected. |
When the Data Profile Type is set to "Trunking" or "Trunking & Broadband", and
when the Port List Selection field is "Disabled".
SELECTIONS: |
DEFINITIONS: |
Classic APCO 25 |
For Transit users, at commission time, DAC bits 1-8 should be configured for Classic APCO 25. |
Controlled Channel Access |
For Transit users, at commission time, DAC bits 9-16 should be configured for Controlled Channel Access to allow for future CCA expansion without the need to reconfigure the radio to the DAC Operational Mode.
(When the Data Profile Type is set to "Trunking", and when the Port List Selection field is referencing a valid Enhanced Data Port List), Or (When the Data Profile Type is set to "Trunking & Broadband", (Selecting "Classic APCO 25" then makes this field inaccessible).
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