User's Manual Part 2

DSPbR Series – User’s Manual
Document Number 00000.B Page 27/75
The motherboard architecture accommodates up to sixteen RFFE boards (eight modules).
A DSP board in side “A” takes inputs from RFFE boards in slots 9 & 8 and drives RFBE boards in slots 1, 2, 5 &
6. A DSP board in side “B” takes inputs from RFFE boards in slot 7 and drives RFBE boards in slots 3, 4, 7 & 8.
The slot allocations for the DSPbR reflect the DSP architecture where the first four RFFE channels (2 modules)
are allocated to slots 1 and 2. The next four RFFE channels, which correspond to RFBE modules 3 and 4, will
be accommodated in slots 5 and 6. Correspondingly; in a bi-directional configuration the RFBE modules for the
alternative direction will accommodate slots 3 and 4 and then 7 and 8.
The illustration of form and the bolting together of the BPFM to the RFFE in Figure 9 is the same for the RFBE.
Although the individual channel frequency and its characteristics within an RFBE band is adjustable, the RFBE
band is fixed. RFBE modules are band specific.
Channel programmability
Channel programming is done via the web browser GUI interface – Refer to chapter 5.2.7
Level 1: User name and password access via the web browser GUI interface displays only status of the channel
configuration.
Level 2: User name and password access via the web browser GUI interface facilitates status display and
channel configuration capability.
Typical configuration examples
An RFBE 410-410 module is configured with an RFBE 400-420MHz board in side “A” and the same 400-
420MHz RFBE board in side “B”.
An RFBE 815-860 module is configured with an RFBE 805-825MHz board in side “A” and an 850-870MHz
RFBE board in side “B”.
Output power level settings
When configuring the RFBE via the GUI, the adjustable RF output power level is referenced to dBm and is the
output level of the RFBE only and not the output power level at the external connector at the rear of the DSPbR.
The level is adjustable in 1dB increments from +30dBm to +46dBm (+/- 0.5dB) for frequencies from 400 to
490MHz and +30 to +43dBm in 1dB increments for the 805 to 870MHz Frequency Range. Although the drop