describes the slot assignment for GRFUs or DRFUs when not more than three single-
band sectors are configured in a single RFC. If more than two GRFUs or DRFUs are configured
for G1, the GRFU or DRFU that is not inserted can be preferentially positioned in slot 2 in
cabinet 1. If more than two GRFUs or DRFUs are configured for G2, the GRFU or DRFU that
is not inserted can be preferentially positioned in slot 4 in cabinet 1. If more than two GRFUs
or DRFUs are configured for G3, the GRFU or DRFU that is not inserted can be preferentially
positioned in slot 3 in cabinet 1.
Table 3-27
Slot assignment for GRFUs or DRFUs
Sector Number
G1
G2
G3
Cabinet 1
Slot 0 or 1
Slot 2 or 3
Slot 4 or 5
Figure 3-39
GSM S4/4/4 (1G+1G+1G)
Figure 3-40
GSM S10/10/8 (2G+2G+2G)
If more than three single-band sectors are configured in a single RFC, GRFUs or DRFUs are
positioned in the slots from left to right in the RFC.
3 BTS3900 Hardware Configuration
BTS3900
Hardware Description
3-44
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Issue 04 (2011-02-15)