5.2.1 U2U Control Board Settings
Broadcast
Logical address at which connected units receive datagrams.
NOTE: Messages sent to the broadcast address is typically received by all network-attached hosts.
CB Firmware Version
Display configuration based on the firmware version of the control board, as follows:
• PA-2.06: CW/DS, DSE, PDX/PCW
Gateway
Routes data and acts as proxy server/firewall for control board during network set up. Display and control board must
be identical on the U2U network.
IP Address
Network address of the control board.
NOTE: Last three digits must be a unique value and need not be sequential. However, we recommend that they match
the U2U address for easier reference later.
Netmask
Divides IP addresses in subnet and specifies network available to hosts for the control board.
MAC Address
Unique, read-only identifier of the control board Ethernet device.
U2U Address
Unique identifier for each control board on the U2U network. Address range is 1to32 and must be consecutive from the
previous control board address in the U2U group. This is the address used for standby/lead lag and cascade operation,
see Figure 5.1 on the previous page .
NOTE: We recommend matching the U2U address to the last three digits of the IP address for easier reference later.
U2U Group
For the control board, selects the zone/group with which the unit will be configured in teamwork/standby/rotation
scenarios.
NOTE: Units with a specific thermal area of influence should be assigned to the same zone/group, typically when a
network spans separate rooms rather than by aisles. Groups are also handy when cooling units vary by cooling type,
compressor type, or version of Liebert® iCOM™ firmware and otherwise do not operate together efficiently or at all.
5 U2U Networking
99
Vertiv™ Liebert® iCOM™Installer/User Guide
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