8M083X25 R14
APX Series P25 Interface
DVRS Installation & Programming Guide
–
PART II
January 2019
Page 64 of 153
Programming of the P25 XTS PSU (Generic P25 or DVRS enabled) for
Inbound Digital Takeover
A Generic P25 XTS PSU must have Smart PTT disabled if “Outbound Takeover by Voice
Allowed
” is enabled in the DVR.
Programming of Analog Conventional PSU for Analog DVRS Mode
The programming of any PSU for analog mode involves the following:
•
PSU Tx frequency and Tx PL/DPL must match the DVR Rx frequency and Rx PL/DPL.
•
PSU Rx frequency and Rx PL/DPL must match the DVR Tx frequency and Tx PL/DPL.
•
Adjacent channel spacing programming of the DVR channel and PSU must be the
same i.e. either 12.5kHz or 25kHz.
•
If MDC Emergency is to be used by the PSU, the PSU must have MDC1200 signaling
enabled. The MDC1200 System Pretime must be set to 50ms if the PSU Emergency
ID is to be seen on other System radios that are on the same TG. If the MSU has the
default System Pretime of 700ms, the PSU Emergency ID will only be displayed on
the Dispatcher Console.
•
Preamble during pretime must NOT be enabled.
•
If MDC1200 Emergency alarm is to be used when the MSU is on a trunked channel,
the MDC ID (hex) must be allowed on the Trunking system side (see MDC PTT ID
offset)
•
If DTMF signaling is used, the DTMF sequence programmed in the PSU must end with
a ‘*’ i.e. 123*.
