MDS 05-4846A01, Rev. F
SD Series Technical Manual
9
Dual Protected Configurations
Two dual transceiver configurations are offered for the SD Series. They
are known as the
SDxDT
and the
SDxDP
. These configurations are used
for the following purposes:
• When full duplex operation is desired using dedicated Transmit
and Receive transceivers.
• When a Master or Repeater site requires bandpass duplexers due
to the presence of co-located antennas.
• When streaming Repeater operation is desired using dedicated
Transmit and Receive transceivers
SDxDT
Configuration
The SDxDT uses the same chassis as the SDxP described above. How-
ever, one radio is configured with the transmit frequency and the other
for the receive frequency with appropriate connections between them. It
also includes a bandpass duplexer tuned to a specific frequency for
simultaneous transmission and reception (full duplex) operation. Note
that the SDxDT provides one serial port and one Ethernet port for user
equipment.
SDxDP
Configuration
The SDxDP is a protected, full duplex Master or Repeater site configu-
ration. This consists of two SDxP chassis described earlier, with appro-
priate interconnect cabling between the units. The radios in one SDxP
are configured with the
transmit
frequency and the radios in the other
are configured with the
receive
frequency. The SDxDP also includes a
bandpass duplexer tuned to a specific frequency for simultaneous trans-
mission and reception (full duplex) operation.