User's Manual

Navini Networks, Inc. Ripwave Base Station I&C Guide
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are already installed, verify that the correct cards are placed and seated properly. The RF/PA
modules may be installed in any position on the top (RF) shelf. For the Digital shelf, refer to
Figure 47 for correct card placement. Table 4 describes the name of each type of card in the
Digital shelf.
Tighten the screws to secure the RF/PAs into the RF shelf. For the circuit cards, follow the
markings on the backplane for the position of each card in the Digital shelf. Make sure the
ejectors on all cards are engaged in the chassis. Figure 46 represents a fully populated Digital
shelf. If the BTS is not fully populated, blank panels are installed to fill in the empty card space.
They are also used to fill in the empty space between the circuit cards and the end of the cabinet.
Table 4: Digital Card Names
Abbreviation Card Name Number of Cards
SYN Synthesizer 1 or 2
IF Intermediate Frequency Always 2
CHP Channel Processor Always 2
MDM Modem Always 2
CC Communications Controller 1 or 2
Figure 47: Digital Shelf
SYN IF CHP MDM CC
Combo/Split Chassis
SYN IF CHP MDM CC RFC
TTA
SYN IF CHP MDM CC
Combo/Split Chassis
SYN IF CHP MDM CC RFC
TTA