User's Manual

3 Functional Description
Page 21
3.2.4. Crossband-Coupler Drawer of ION-M4 19"
figure 3-8 Alarm triggering
The crossband-coupler (CBC) module is
equipped with 8 QMA RF connectors –
(three for DL ports and three for UL ports.
These are the Common port from/to OTRx,
DL Low Band / Middle Band/ High Band to
power amplifiers, UL Low Band/ Middle
Band/ High Band from the duplexer.
3.2.5. Amplifier Drawers 470-512 MHz and 851-894 MHz
Each amplifier module provides two QMA RF
ports. The upper RF IN port connects to the
crossband-coupler port of the ION-M4 19'', the
lower RF OUT port to the corresponding DL
and/ or UL port of the corresponding duplexer.
For ION-M8 19'', the RF cable comes directly
from the OTRx.
Max. of up to 3 PAs in 400 MHz range can be
equipped in the ION-M 4/8 19".
figure 3 7 Amplifier drawer