M0201AA
ION
®
-E Series Hardware Installation Guide
© June 2017 CommScope, Inc.
Page 29
Installing Subracks and PSUs in an Equipment Rack
Connect the RFD Cards
1
Follow the steps in
"Install the CAN and TEN Cards” on page 27
to install the RFD Cards into the WCS
Subrack Slots R1 - R8, as needed for a CAN configuration.
2
Connect RF cables from the BTS/eNodeB or e-POI to the duplex QMA connectors of the RFD cards.
•
SISO services such as CDMA, UMTS, GSM, and LTE SISO can be connected to any active port.
•
LTE MIMO pairs must be connected on the same RFD Card, as a pair to: Port 1 and Port 2 or to Port 3
and Port 4.
3
If the signal levels of the BTS exceed the maximum input level of +27 dBm, an e-POI RF card or other
suitable attenuator must be used to attenuate the signal. For optimum PIM performance, the composite
level into a Donor (RFD Card) port should be less than 16 dBm. If only one carrier is in a band, PIM is
probably not a concern. For the case of two or more carriers in a band, spurious intermods due to PIM
could land in the UL causing interference. Whether or not PIM will cause interference depends on the
spacing between UL and DL and the frequencies of active carriers.
TENs do not support RFD Cards.
LTE MIMO Pair
to/from
BTS/eNode or e-POI
LTE MIMO Pair
to/from
BTS/eNode or e-POI
SISO Services (CDMA, UMTS, GSM. LTE SISO)
