For RBS 200 the following is valid:

GSM 900:

31 to 47 dBm, odd values only

GSM 1800:33 to 45 dBm, odd values only.
For RBS 2000 macro the following is valid:

GSM 800:
GSM 900:

35 to 47, 491), 512) dBm, odd values only
35 to 47, 491), 512) dBm, odd values only

GSM 1800:33 to 45, 471), 492) dBm, odd values only
GSM 1900:33 to 45, 471), 492) dBm, odd values only.
Note: For GSM 900 - TRU: KRC 131 47/01, the range is 31 to
43 dBm. If one or more GSM TRU type KRC 131 47/01 is used
within one cell the maximum output power for that cell shall be
limited to 43 dBm. To ensure that, the parameter MPWR (see
page 187) shall be set to 43 dBm for all TXs on that cell.
For RBS 2000 micro the following is valid:
GSM 800 (2308 only):21 to 33, 351) dBm, odd values only

GSM 900:

21 to 33, 351) dBm, odd values only

GSM 1800:21 to 33, 351) dBm, odd values only
GSM 1900:21 to 33, 351) dBm, odd values only.
For RBS 2401 indoor the following is valid:

GSM 900:

7 to 19 dBm, odd values only

GSM 1800:9 to 21 dBm, odd values only
GSM 1900:9 to 21 dBm, odd values only.
1)Software Power Boost (not applicable for RBS 2401):
The feature Software Power Boost is activated by setting
BSPWRB to a special value that is 2 dB higher than the
maximum possible power at the PA output. TX diversity is used
and each TX supporting the master-slave configuration is
configured. A BTS with filter combiner does not support
Sofware Power Boost.
2)Transmitter Coherent Combining:
The feature Transmitter Coherent Combining (TCC) is activated
by setting BSPWRB to a special value that is 4 dB higher than
the maximum possible power at the PA output. TCC is
applicable to RBS 2106 and 2206 only.