User's Manual

DART Modules
Page 24 FlexWave Prism Element Management System 7.1 User Manual
©
2011 ADC Telecommunications, Inc ADCP-77-177 • Issue 1 • July 2011
DART MODULES
DART Modules:
• amplify, down-convert, filter and digitize the incoming RF signal
• convert incoming digital signal from the SeRF to analog, filter, amplify and
up-convert the frequency from Intermediate Frequency (IF) to RF
• provide a bi-directional interface between RF and the SeRF board (via FPGA,
D/A converter, and A/D converter)
• provide uplink gain
• support Simplex RF interfacing to/from the BTS
• perform adjustable delay processing.
Prism supports the following types of DART Modules:
• Classic DARTs are 6-timeslot DARTs that support up to 35 MHz contiguous
bandwidth (see
Table 2).
• Single SuperDARTs are 6-timeslot DARTs that support two non-contiguous
bands in the entire frequency range of the DART, but cannot exceed 35 MHz
total RF bandwidth (see
Table 3 on page 25).
• Single SuperDARTs that can support 70/75 MHz bandwidth in positions 1 or 3
when installed in a Host Unit II that has both a SeRF II Module and a Backplane
II chassis installed. (See
Table 4 on page 25.)
• Dual SuperDARTs are 12-timeslot DARTs that support up to 70/75MHz with two
non-contiguous bands (see Table 4 on page 25).
NOTE: Industry Canada PCS 20 dB nominal bandwidth is less than 61.5 MHz.
NOTE: Industry Canada AWS 20 dB nominal bandwidth is less than 47.2 MHz
Table 2. Single-Slot Classic DARTs
DART Name Maximum
Bandwidth
(MHz)
Number of
Fiber Slots
800 APAC iDEN Classic 19 3
800 SMR Classic 18 3
850 Classic 25 4
900 SMR Classic 5 1