Vertiv™ NetSure™ +24 VDC to -48 VDC Converter System Installation and User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
31
8.6.3
Replacing the System Interface Circuit Card
ALERT!
The system interface circuit card contains static-sensitive devices. Read the Static Warning at the front of this
document before performing the following procedure.
ALERT!
When performing any step in this procedure that requires removal or installation of hardware, use caution to ensure
no hardware is dropped and left inside the cabinet; otherwise service interruption or equipment damage may occur.
NOTE!
When performing any step in this procedure that requires removal of existing hardware, retain all hardware for use in
subsequent steps.
NOTE!
Refer to Figure 8.2 as this procedure is performed.
Procedure
1.
Refer to the Static Warning and Admonishments at the beginning of this document before performing this procedure.
2.
Performing this procedure may activate external alarms. Do one of the following. If possible, disable these alarms. If these
alarms cannot be easily disabled, notify the appropriate personnel to disregard any future alarms associated with this system
while the procedure is being performed.
3.
Open the main shelf’s front door.
ALERT!
Damage to the circuit card may result if the next step is not followed.
4.
Connect an approved grounding strap to your wrist. Attach the other end to a suitable ground.
5.
On the replacement circuit card, set the switches and jumper to match the existing circuit card settings. Refer to Figure 3.1.
6.
Remove terminal blocks TB1 and TB2 from the existing circuit card. Refer to Figure 4.2.
7.
Unplug the J1 connector plugged into the existing circuit card. Refer to Figure 4.2.
8.
Remove the screws securing the cover over the System Interface Circuit Card and remove the cover and circuit card.
9.
Position the replacement circuit card over its mounting position and replace the cover. Secure the cover and circuit card
with the screws previously removed.
10.
Reinstall terminal blocks TB1 and TB2 onto the replacement circuit card.
11.
Reinstall J1 onto the replacement circuit card.
12.
Remove the grounding wrist strap.
13.
Enable the external alarms, or notify appropriate personnel that this procedure is finished.
14.
Ensure that there are no local or remote alarms active on the system.
15.
Close the shelf’s front door.
