User Manual Part 1

FlexWave Prism System

Page 12 FlexWave Prism Host, Remote and EMS 5.1 System Reference

1.4 DART CARDS

Digital/Analog Radio Transceiver (DART) cards provide the interface between base

station equipment and the SeRF. There are three types of FlexWave DART cards:

•• Classic

•• Single SuperDART

•• Dual SuperDART.

FlexWave DARTS are band specific assemblies available in the versions listed in

Table 1-1.

DART cards:

•• amplify, down-convert, filter and digitize the incoming RF signal from the BTS

•• convert incoming digital signal from the Remote to analog, filter, amplify and

up-convert the frequency from Intermediate Frequency (IF) to RF

•• provide a bi-directional interface between parallel digital RF (to D/A and from

A/D) and Serial RF (SeRF) to/from SeRF board

•• perform adjustable delay processing.

Table 1-1. FlexWave DART Card Types

Band Maximum

Bandwidth

(MHz)

Number of

Fiber Slots

Slot

Requirement

Classic DART Cards

AWS 2100 35 6 Single

Cell 850 35 6 Single

PCS 1900 35 6 Single

SMR 800 35 6 Single

SMR 900 35 6 Single

Single SuperDART

Cards

GSM 900 35 6 Single

Dual SuperDART Cards

AWS 2100 45 8 Dual

GSM 1800 75 12 Dual

PCS 1900 70 12 Dual

UMTS 2100 60 12 Dual