M0201ABK_uc ERA® WCS and e-POI Subracks and Power Supply Unit Installation Guide
© June 2021 CommScope, Inc. Page 75
Install and Connect the Subrack Cards
Connect the CDD Cards
The following sections guide you through the installation of a CDD Card. Adhere to all product safety and
compliance cautions and follow the steps in the order presented.
Calculate the Power Draw
The maximum power draw for a CDD Card is 40 Watts. To determine the power draw of all CDD Cards
installed in the CAN, multiply the number of CDD Cards installed by 40 Watts.
Connect the CDD Card to the BBU
1 If necessary, contact your local Nokia sales representative to obtain the required number of SFP Modules
for this installation. The CPRI line rate is determined by each installation; care must be taken to order the
proper speed grade SFP Module based on the installation requirements.
2 Slide an SFP Module into a CDD Card CPRI Port (labeled 1 - 6), and then push the SFP Module into the CDD
Card until you hear it click into place.
3 Obtain the required length of Single-Mode Fiber cable (with loss of less than 13 dB) that has a dual-fiber
LC jumper that can reach from a CDD Card CPRI port in the Classic CAN or WIN to a CPRI port on the Nokia
AirScale FSM4 ABIA Module in the BBU.
4 Connect one end of the cable to an SFP Module installed in a CDD Card CPRI Port (labeled 1 - 6).
5 Connect the other end of the cable to a CPRI port on the Nokia AirScale ABIA Module, where the CPRI
ports are labeled RF-n where n is the port number (1 - 6).
Refer to the following graphics for examples of BBU to CDD Card connectivity:
• For Classic CAN installations, see Figure 14 on page 76
• For WIN installations, see Figure 15 on page 77.
This calculation is for the CDD Card only.
CDDs are hot swappable; you do not need to power down the CAN or WIN to install or remove a CDD.
Do not use CommScope ERA SFP+ Modules in the CDD Card.
Should you need to remove an SFP Module, do the following in the order presented to prevent damage
to the SFP Module, the CDD Card, or the fiber.
1. Disconnect the fiber cable.
2. Pull down on the extraction lever on the SFP Module.
3. Use the extraction lever to carefully pull the SFP module out of the CDD Card slot.
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